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-   -   Rai & Markus' "Drake" HD camera (https://www.dvinfo.net/forum/alternative-imaging-methods/34339-rai-markus-drake-hd-camera.html)

Jason Rodriguez April 26th, 2005 10:33 AM

BTW, you can find people in the U.S. for cheap too, just don't expect them to be really good or Union members (Local600).

If they are people you know though, sometimes you can get good rates that way also, but again, you can't expect that level of pay all the time, expecially when they're used to getting paid four times that amount or more for other stuff.

Joshua Starnes April 26th, 2005 11:16 AM

Quote:

Originally Posted by Juan M. M. Fiebelkorn
Wow, that should be the reason why Spike Lee was shooting a BMW comercial this past Saturday just 2 blocks from here!!! :0
Imagine Lee shooting Buenos Aires to make it look like New York!!
Amazing, isn't it?

These days you get a full HDCAM (F900) for less than 2K here.
A DP goes for u$ 1333 per week for a feature length film (usually 6 to 8 weeks) or u$ 350 per day if shooting a commercial.
DP is one of the highest salaries here.
Another example. Catering service is around u$ 8.30 to u$ 16 per day per person.

That's it, if I ever get a chance to make a studio film, I'm shooting it in Buenos Aires.

Michael Maier April 26th, 2005 11:28 AM

Shooting Buenos Aires for N.Y? That must be interesting. Buenos Aires looks nothing like NYC. If he wanted to shoot in South America for NYC, he should maybe have shot in Sao Paulo. But I guess maybe the prices were really what attracted him :) You never know.
But regardless, Buenos Aires is a lovely city.

Juan M. M. Fiebelkorn April 26th, 2005 12:16 PM

Well, if you know Buenos Aires, for sure you know "Obelisco" area.
That area can look really like NY when on film.You would be amazed by how many actual commercials for USA and Europe are being shot here that way.
The thing is you can't never tell if it is shot here or N.Y. :)

BTW those prices are for "top quality" crew.
Also Brazil prices are quite simillar.Big differences are:
B.A. is quite different to any Brazilian City and viceversa.
You have a wider selection of actors and extras here than in Brazil.
More than 90% of people here is European white type.So that makes the castings quite easy.

Michael Maier April 26th, 2005 12:27 PM

Yeah, sure know the place you are talking about. It's the square where they have this mini Washington Monument. It's the main square isn't it?
I guess you might be right. If they are mainly tight shots, it could pass as "NYish". But you guys seem to have great deals on gear and labor down there now. I would imagine that with a 200-300k budget (US dollars) you could make a great HD feature down there. Is it easy to rent american cars there too? Any price idea? That would be a must when trying to pass as NYC. Lots of yellow Crown Victoria cabs and american cars, buses and some N.Y.P.D cruisers.

Juan M. M. Fiebelkorn April 27th, 2005 11:47 PM

Wow.

It has always been cheap in fact.If anyone is as old as me, he should remember the "not so good" "Highlander 2". It was shot here many,many years ago.

A normal feature length movie goes like this:
Normal movie :Around $120K
Higher production movie:170-180K
Big budget (means cars exploding and the like ;):350K-650K
Astronomical: $ 1 million.With that I guess you can make miracles..

The "Obelisco" has nothing to be with a main square or the like.It is just a monument.
The main place is "Plaza de Mayo".You can see it in "Evita".
I guess it could be quite dificult to get american cars.
95 percent of cars are European.Renault, Peugeot,Volkswagen,Audi,Alfa Romeo,Rover,Fiat,Citroën,Seat.Ford and Chevrolet are also European style.
I guess there is some place which has several yellow cabs, but I don't know where is it or how expensive it could be.I just know 3 or 4 months ago a saw a couple of them while seeing a commercial shooting.
Hope this helps.
If anybody here needs more info just email me and I'try helping you to get in contact to anyone renting equipment or giving production services :)

Michael Maier April 28th, 2005 03:06 AM

WOW you say?

I should say WOW to those prices. Awesome. Wish was like that over here :)

I see, I think I got confused with the main square. It's been a good 10 years since I been there.

If you can't rent american cars, how's Spike doing to make the city look like NYC? It sure would help a lot.

Joshua Starnes April 28th, 2005 11:34 AM

Quote:

Originally Posted by Juan M. M. Fiebelkorn
Wow.

It has always been cheap in fact.If anyone is as old as me, he should remember the "not so good" "Highlander 2". It was shot here many,many years ago.

I do remember that, I also remember that the movie got shut down before it was finished being shot (one of the reasons it was so bad) because it was over schedule and over budget.

Makes me wonder just what in the hell they were spending the money on.

Juan M. M. Fiebelkorn April 29th, 2005 04:48 PM

Well, I guess they chosed a "bad" or "not so good" producer.
You know, if you go to a foreign country without having some previous knowledge about who you are working with, anything can happen.
I know one guy, who has a really bad reputation, who became rich just selling them old cars like Ford Falcon models.
I also know they wanted far more than what was posible with that money.I guess someone thought things were cheaper than what they really were.
I don't know why but foreign people usually think "everything" is cheaper here.
For example, if you pay $ 500 for a 1,000 feet can in USA it is for sure that it will cost more here.
Same happens if you want an american car that isn't made here.
People need to understand that the cheap things are the ones made here.If it is imported it won't be cheap.
End of Story: You need some people with Spanish language knowledge, make them check every price with every place, and then ask for references about the local people you are working with.
Understood?
Europeans do it always that way and it works for them.
hope this helps.

Levan Bakhia May 2nd, 2005 03:23 PM

I read throu all of the thread, it was very interesting. Thou I still have some questions, if anyone can unswer. I realy like to quality of the samples form the site, it look like film and camera seems to do well. But, how come nobody mentions the frame rate? I mean, I think it is a major disadvantage not to have higher frame rate capture possibility, of course I don't mean like those super high speed CMOS cameras that shoot at thousands of frames per second, but to have at least 60fps would be nice, for some slow motion effects.

Also I wonder if I understood it right, does this camera has an option to upgrade the sensor in future when newer sensors will be available?

I plan to purchase the camera, as soon as it will be available, but I really would like it to have a higher frame rate, this is way I hope maybe later with a better sensor I could have that upgrade.

I am not engineer, so I hope you don't get bored, if I write some unprofessional statements above :*)

Also can somebody explain the case with 8bit and 10bit thing. I didn't get it well. There was somebody critisizing the camera in this thread, for it limit to 8bit. I mean, I like the final images, and all the depth and the look, but I wonder how flexible will I be when I will color correct my image in post. Does 8bit mean I will not have enough color data for that?

Please be kind, anyone, explain this matter, so that I could make my final decision. I need to buy a camera as soon as possible for my project.

AND NICE TO MEET EVERYONE :*)

Steve Nordhauser May 3rd, 2005 06:31 AM

Levan:
I will try to address your questions. First, yes there are cameras that will run much faster. The Altasens 3562 can do 1920x1080@60fps and 720p at 120fps. Speed costs money so you don't go faster than you need to. The interface between the camera and capture costs more, the system design is more difficult and the RAID storage goes up. Read about Obin's exploits in trying to get 1080p @24fps recorded without issues to understand why people don't go to 150Mpix/sec data rates without good reason.

When you say upgradable sensors, you really mean camera head since you need the associated timing control, A/D, gain stages and interface to make a camera head and the design of each is unique. I believe that this has come up a few times. It is a good goal. You need a point of continuity- probably the interface to the camera head - and approximately the same data rates to keep the rest of the system the same.

8/10 bits. The signal captured by the sensing site on the sensor is analog - continuously varying voltage. To create a digital value, you must go through an Analog to Digital converter (A/D). While you can set the range of the A/D to cover the full signal at any number of bits, the bits determine how many steps there are from black to white. Think of a really bad setup - 2 bits - so you get four combinations or steps. No matter what you do afterwards to smooth those steps so the image doesn't look ....steppy, you can't get more information beyond what is captured at the A/D. More is better. It is more complicated once you talk about log/linear and compression, but I'll wait until you digest this and let you ask.

Pleased to meet you too. It is an adventure here.

Edited:
Quote:

Originally Posted by Levan Bakhia
But, how come nobody mentions the frame rate? I mean, I think it is a major disadvantage not to have higher frame rate capture possibility, of course I don't mean like those super high speed CMOS cameras that shoot at thousands of frames per second, but to have at least 60fps would be nice, for some slow motion effects.

Also I wonder if I understood it right, does this camera has an option to upgrade the sensor in future when newer sensors will be available?

Also can somebody explain the case with 8bit and 10bit thing.

AND NICE TO MEET EVERYONE :*)


Levan Bakhia May 3rd, 2005 02:31 PM

Thank you steve,

It is always like this, but having unswers to some question must lead to new questions. First of all, I know about Altasens camera, but I am not technician, on their web site I only see the specifications that might or might not be uderstandable for me. I would like to see the actual footage from the camera. What I do as for my business I shoot TV commercials, and I work on 35mm film. If you go to www.sarke.ge/clips you will be able to download my works. ( there was some problem with the server, so maybe not today ) Working on 35mm is a lot of cost, and that is not a new to you, so what I am trying to do repace it with something else. My current workflow is, I shoot on film, I develope, I do telecine and color correction on those expensive equipment, transfer it to SD and edit the commercial. I do own my editing hardware (final cut) I plan to buy FinalTouch HD for color finishing, and I would like to have a nice camera, to have a film like image, with a good DOF and enough color information and resolution to color correct my images with my FinalTouch. So the missing component at this moment is a camera, and I have a nice budget for it, around 25K. (of course less is always better :*) ) Now, problem is I don't have enough technical knowledge to assume wich camera is better just by reading the specs. With DRAKE camera I saw samples and I liked it. I went to NAB this year in hope to find something appropriate for me, I was also hoping to see KINETTA, but the only thing there I found was a DVX-100 upgraded by reel-stream. They showed me footage, the image looked nice but since it was using the standard lenses of DVX-100 it was FLAT. But then they refered me to P+S technics. Well the whole package would seem nice, but I am not sure if it was the best. After return, I learned about DRAKE from the thread. I also saw all this sumix and altasens and other cameras, but none of them have a nice site like DRAKE, the site that would explain everything, using some samples. At this moment I am defined to buy DRAKE system, but the only thing that concerns me is this 8bit and low fps problem.

Now this leads to a question, how about Altasens, how can it be compared to DRAKE in terms of actual picture quality? The most important thing for me is to have a flexibility in post color correction, because most of my work is beautiful for its beutiful colors, and I don't want to have the problem of setting the color on the stage while I shot, I want to think about it later. (like I do with film). So I need to have enough color info for that. I am not sure if the 8bit thing has to deal with it, but is seems that is does. (dynamic range???). Of course the DOF is another thing that is MUST for me. My final product is SD, and I not concerned with the final resolution, but I care for film look, and I think the higher the resolution of the footage, more flexible I will be in color correction process.

What does Altasens camera record to? Is it hard drive or what? How can I then transfer the image to my Macintosh?

Now about 8 bit vs 10 bit thing, this is what I udnerstood: sensor itself may capture (sense) the image and responds to it with different voltage, if you just think of it it could be more than even 10 bit, then this voltage has to be translated to digits, so that it can be recored as a pixel information. The higher the bits, more it differentiates between voltages. Every pixel, has its individual digital record, and it is either 8bit or 10bit or it could be 12bit or more. Now what is dynamic range?! I could understand it as a ratio of the lowest and the highest voltages a sensor can read, and thus bits are steps between them? more bits means more steps. I am right?

Now that is maximum I could get, I am totaly confused with this "log/linear" thing. But I know what compression is and I also understand what 4:4:4 or 4:2:2 means.

"A 10bit lookup table and a 8bit data stream are recorded in real time" <-- now this is from DRAKE site, what does it mean?

By the way, good news is that final version of DRAKE will have 10bit and 12bit options for recording.

I am all up to DRAKE, the only thing is fps.

Now I looked up at all the text and I have written a huge post, I hope nobody gets mad at me :*)

Rob Lohman May 5th, 2005 05:42 AM

the number bits IS the dynamic range (in the digital world). So 10 bits is a
larger dynamic range than 8 bits.

Log encoding is a way to encode more bits into less bits. In this case 10 bits
get scaled into 8 bits, as I understand it some information will/could be lost in
this transformation (but this should be kept to a minimum). The most important
thing is that you keep your dynamic range (you don't just chop bits off).

The lookup table basically tells how to transform the 8 bit signal back into
10 (or how many) bits.

Steve Nordhauser May 5th, 2005 11:34 AM

I almost agree with this. The dynamic range is the span from bright to dark that you can resolve. You have two things ready to bite (byte?) you. First, camera noise may render some of the bits unusable - lost in noise regardless of the A/D bit count. Second is the full well capacity of the sensor. For a low noise sensor, a deeper well means that the range of bright to dark can be greater, so more bits can be used to acquire the pixel value.

Log encoding is changing that linear description of the signal and converting it to a non-linear response - usually mimicing the response of the eye. This lets you use more steps to describe brightnesses that the eye is sensitive to. If done correctly, you can use this to decrease the number of bits per pixel without losing steps in the areas of brightness that are important. Rob is right - this is the way to decrease the number of bits used - truncation is evil.

The lookup table is just a map - if this value comes in, put this value out.

Quote:

Originally Posted by Rob Lohman
the number bits IS the dynamic range (in the digital world). So 10 bits is a
larger dynamic range than 8 bits.

Log encoding is a way to encode more bits into less bits. In this case 10 bits
get scaled into 8 bits, as I understand it some information will/could be lost in
this transformation (but this should be kept to a minimum). The most important
thing is that you keep your dynamic range (you don't just chop bits off).

The lookup table basically tells how to transform the 8 bit signal back into
10 (or how many) bits.


Levan Bakhia May 5th, 2005 01:48 PM

Thanks a LOT
 
Rob, Steve, thanks a lot for your time. It is great that this kind of forum exist and one can get info and support from others.

Now I want to discuss the next thing: it's CMOS vs CCD in terms of bits. Like when you say 8bits on CCD sensor, it turns to 24bits since it there are 3 CCD, 8bit for each color, total of 24. When we are talking about CMOS 8bits does this also mean that there are 8bits for each color (RGB), I got confused because CMOS is a single chip. Now, if it is only 8 bits vs 24 bit, there should be a lot of difference between those two images, but there is not. Even I definately would say that CMOS images look much more appealing than CCDs. But how come 24bis vs 8bit is not a better image? but, then I get confused, there is no way CCD can be better, because then ARRI wouldn't choose CMOS in their D-20. On NAB I saw some footage of this camera and it was amazing, I think only high class professionals would differentiate it from film.

Also one more question, I didn't completely understood the log/liner bits, but I did get the fact that using log, would give us more details with lower bits. So, is DRAKE using log? I mean is it 8bit log?

Thats it,
I hope answers to my questions will aslo be usefull for other readers of this forum. :*)

Steve Nordhauser May 6th, 2005 11:26 AM

Levan,
I'll address the first half since someone in cinematography is better suited to discuss log/linear.

The difference you are describing isn't CCD vs CMOS. It is single chip color vs 3 chip color. In a 3 chip camera, a beam splitter will separate out the R,G, and B parts of the incoming image and send them to individual monochrome sensors. As you say, with 8 bit A/D converters, this gives you 24 bit color although you can go to 10 or 12 bits per color per pixel and use a log encoding to bring you back down to 24 bits.

Single chip color almost always uses a Bayer color filter of 50% green, 25% blue and 25% red pixels. One 8-12 bit value is generated for each pixel. The other colors are interpolated. Rather than go into detail, try some of our website - tasty but less filling:

http://siliconimaging.com/ARTICLES/CMOS%20PRIMER.htm
http://siliconimaging.com/RGB%20Bayer.htm

The color from a single chip camera is not quite as good as a 3 chip but the cameras are much cheaper (a 3 chip is like 3 independent cameras) and recording is 1/3 the bandwidth. This does clobber your resolution when you look at blue or red objects however.

Michael Maier May 6th, 2005 01:28 PM

Quote:

Originally Posted by Levan Bakhia
What does Altasens camera record to? Is it hard drive or what? How can I then transfer the image to my Macintosh?

Well, as I understand it, there's no Altasens cameras. Altasens are just CMOS sensors. Not really a camera. It seems the new JVC 2/3" HDV camera will sue those. But I don't think any camera is suing them already. Also, if threre will be any industrial cameras using them, I think they will be expensive cameras, like the Dalsa. So not really a good optio for DIY I guess.

Levan Bakhia May 6th, 2005 03:45 PM

Great links Steve, I read it carefully. Now this definetely means that CCD is superior to CMOS, since in some way, 3CCD means that each pixel in the image has exact information of the shades of gray of Red, Green and Blue, while in CMOS, proportion (intensity of) Red Green and Blue are assumed base on Bayer filter, so it might have some (bot very little) mistakes itself.

This all is interesting, but when I look at images of CCD cameras, they look flat and unartistic. Could it be because they use different kind of lenses. I mean, as I know there is prism inside that splits the colors for 3CCDs, while in CMOS, the light travels direct and hits the sensor. Could it be the reason?

And one more question. In the artical there is info that visible wavelength is from 400-750nm. What about this sensors, do they sense full range? Or does this range also vary depending on the sensor?

Does anybody know what is the price for DALSA? Is their camera already available at all?

One more question to Michael. why would ALTASENS manufacture sensors, if nobody uses it? And why they call it camera, if it is just a sensor?

I also visited www.siliconimaging.com. There are two things I want to know. How good are the images from this cameras? Could I use those higher frame rate cameras for cinema projects rather than scientific observations? and I want to set up an array of up to 125 digital cameras (could be still), sycronised, connected to a computer and recording frames. To create special effect, like the one used in matrix?

I know I am going out of the subject of this thread, we are here to talk about and discuss DRAKE, but... :*)

Steve Nordhauser May 6th, 2005 06:16 PM

Levan,
I'll try again. One sensor or three. It has nothing to do with CCD or CMOS. I can make a 3 chip CMOS camera easier than a 3 chip CCD. There are many single chip CCD cameras.

Look at the data sheet for one of our cameras or at the Micron data sheets. You will see a set of response curves. There should be a monochrome response of the sensor over a range of wavelengths. There should also be the R,G,B respsonse that is a function of the Bayer color filter mask interacting with the monochrome sensor response. The response is not in any way linear. It is most sensitive in green.

As Michael said, Altasens is a sensor company, like Micron, Fill Factory and many others. Camera manufacturers (like Silicon Imaging and Drake - mentioning them since this is their thread) buy sensors like any other integrated circuit and build cameras using them.

People are using the Altasens sensor. We have a camera with one. They don't have their yields up high enough yet for high volume quantities which is keeping the camera manufacturers (us again) from announcing that we are ready to ship thousands of cameras. For now it is tens.

Yes, industrial cameras can be used as the head of an HDV camera. The cost is fairly high in single pieces because the cost of a single sale is high (someone has to pay for the time I spend on this board). OEMs pay much lower prices because it doesn't cost much more to support a sale of 50 cameras than a sale of 1. On the other hand, unless you are a student, the time spent designing a camera to own a single camera is just not worth it.

Rob Lohman May 7th, 2005 06:26 AM

Steve: thanks for expanding on my text with the "analog" part. I wanted to
describe this, but my knowledge about sensors (wells and noise) is too limited.
Therefore I just talked about the digital part (# of bits).

Levan: the number of bits has nothing to do with how many chips you have.
A 3 CCD or 3 CMOS camera will simply have more resolution (if the resolution
on each chip is the same and you just have more chips) to play with. Both
systems can output at 8, 10 or 12 bits *PER* pixel.

That value is always PER pixel. In the case of Bayer for each color there is
just one pixel (basically, you would interpolate this to three colors per pixel).
In a 3 CCD/CMOS setup there are 3 colors per pixel.

That is the reason that an RGB datastream will be 3x times as large as an
(unprocess/not-interpolated) Bayer datastream.

That is the reason we like to store the Bayer stream and convert this (again,
through interpolation) into the RGB stream on a computer after you have
recorded the footage.

Levan Bakhia May 7th, 2005 12:47 PM

Yes, Rob, I now understand that there can be both 3CCD and 3CMOS chips, and I guess this means that CCD can also use Bayer technology. But what this means is that, using one CMOS sensor is not defining each pixel color as it would with 3CMOS or 3CCD. As I understand, using bayer filter assigns final color to each pixel rather than 3 (RED GREEN and BLUE) gray levels of the color of this pixel. So by using bayer filter, you are not exact in color information. But, then on the other hand, all the 3 CCD camera images look more like video than even one CMOS image. I have never seen footage from 3CMOS sensors and I can not judge it. So what is the reason for that? Could it be that the prism that brakes light into RGB takes away DOF or anything else that make film different from video. All the CMOS sensor shot I have seen look more filmish, even those with not so good optics. Or maybe I am mistaken. But, I saw VIPER on NAB, and saw footage from this camera. I wouldn't be right to say that it was BAD, but as of my final decision I didn't like it. Anyways I couldn't afford it, but even if I could I would better buy the DARKE. Now, I am judging DARKE solely by it's sample from the web page of course, and I haven't seen it, and I haven't had a chance to play with it, and I definetely will as soon as it will be on sale, before I buy, but from this point of view I like it. I am no professional here, but I think that the good look of the images from DRAKE are all due to CMOS, maybe I am absolutely wrong and forgive me if I confuse other readers. So to finalize,what I tried to say here is that, I understand that technically 3CCD should be superior to 1 CMOS, but on the practice from a guy who is not a professional engineer or technician, 1CMOS works better. Maybe this is due to the prism.

I also saw P+S technics mounted to XL2, and it really looked nice, but all the compressions of mini DV format is not for me. I wonder if P+S technics would add some DOF to DRAKE.

That's it.

Aaron Shaw May 7th, 2005 07:01 PM

Personally, I think the reason CMOS looks so much more like film isn't because it's CMOS - rather it's the complete lack of compression and zero in camera sharpening. I suspect the results would be the same with a CCD.

Levan Bakhia May 8th, 2005 03:28 AM

Quote:

Originally Posted by Aaron Shaw
Personally, I think the reason CMOS looks so much more like film isn't because it's CMOS - rather it's the complete lack of compression and zero in camera sharpening. I suspect the results would be the same with a CCD.

But, VIPER, when recording in filmstream mode is also uncompressed and 4:4:4, and also if you have seen modificatoin of DVX100 by reelstream (www.reelstream.com) is also uncompressed, but it can not be compared to DRAKE at all. But then I really expect to see DVX100 modified by reelstream with mini35 and some good lenses. I expect to see samples of this setup.

Rai Orz May 9th, 2005 02:25 AM

CCD or CMOS ? Single sensor or 3sensors? Sensor size?
Viper is a geat camera,with high resolution 3x 2/3" CCDs + RGB prism. It is based on the same technology like other video cameras. ARRI is a movie camera manufactor and the D 20 use only a single 35mm CMOS with considerably less resolution. The result looks mutch more like film. The sensor is the main different and this example shows, a single CMOS can be mutch better as 3 x CCDs. But it need a lot of other things.

We had started this project, because we wonted a digital camera for film like pictures. Original it was designed only for one movie and only as a camerahead + long cable + PC Unit. We had top engineers for optics, mechanics, electronics and software. All with movie making know how. The result was so excellent that we develop this independent, little and lightweight Drake camera. Now the serial production has begun and we wait for parts.
Our engineers work on next projects, but in the future we will not discuss details on forums till it will be ready. We will not do the same inapt like Altasens or other companys who said: "...it will be available in n days..." and nothings comes. (BTW: Kinetta use also Altasens...). If we talking about future projects here, then it is always ready.

DRAKEs biggest advantage is, it is a modular camera. The main body contain hardware for recording mutch more than 1280x720p, 8Bit, also more than 1920x1080p, 12 bit. Thats why Drake is ready for future sensors and in the near future you can select (or upgrade) between different cameraheads with different sensors.

Levan Bakhia May 10th, 2005 12:58 AM

[QUOTE=Rai Orz]CCD or CMOS ? Single sensor or 3sensors? Sensor size?
Viper is a geat camera,with high resolution 3x 2/3" CCDs + RGB prism. It is based on the same technology like other video cameras. ARRI is a movie camera manufactor and the D 20 use only a single 35mm CMOS with considerably less resolution. The result looks mutch more like film. The sensor is the main different and this example shows, a single CMOS can be mutch better as 3 x CCDs. But it need a lot of other things.

Yes, that is exactly, what I thought, but could you in brief explain what is IT, that makes CMOS footage look more like film, and what about 3 CMOS sensor? Would it be better or do you think it might have a higher resolution but loose that special look of film?

Rai Orz May 10th, 2005 02:06 AM

CCD or CMOS?
CMOS dynamic range is higher than CCD. Its mutch more like film. Thats the main different.

one ore 3 sensors (CCD or CMOS)?
The different resolution is mentioned before. But practice and theory are often different. Colors and resolution are easy to handle with 3 chips. One chip nead a debayer software. But there are a lot of different debayers out. And not all are good. I like to compare debayer software with translation software. Each software translate words, but with bad software nobody understand sentences. That is one of the tricks.
The other big different is the prism itself. It need a longer optical distance between lenses and sensor, because the prism light path is longer. With one chip each film lenses (S16mm) work. With prism you need special lenses. And thats the third main different. A lens with longer distance (between lens and sensor) will never have those short DOF.

All together and you know why ARRI D20 (and Drake) go the one single CMOS way.

Levan Bakhia May 10th, 2005 02:56 AM

Thank you Roi!

I was almost sure, by logicaly thinking, that prism was the reason for loosing DOF, but I couldn't see the theoretical arguments. Now I understand.

Obin Olson May 11th, 2005 10:43 PM

Rai is Drake hardware? or is it software running on Linux/windows with a HIGHSPEED Frame Grabber card?

Keith Wakeham May 12th, 2005 09:34 AM

Rai, i tried emailing your new email, but it just bounced back, so i forwarded to your old one.

Email me again to confirm the address please.

Thanx
Keith

Rai Orz May 13th, 2005 10:03 AM

Quote:

Originally Posted by Obin Olson
Rai is Drake hardware? or is it software running on Linux/windows with a HIGHSPEED Frame Grabber card?

Drake is hardware and software. It is also ready for 1080p if you mean that, but that will not be all...

Joshua Starnes June 7th, 2005 11:14 AM

A bit of an update on the Drake:

According to the website they were planning on rolling out the camera for sale and rental beginning in June. With no update to the website I emailed Marcus to find out what was going on.

He e-mailed me back to tell me that they are doing some new tests on the camera to bring it to true 12-bit recording, and are now looking at releasing it for sale in August.

So that's where it's at right now, 12-bit (probably 4:2:2, maybe 4:4:4, they didn't say) 2/3" chip 720p (though it may be 1080p by the time they get 12-bit going, they say their working on that too) for $20,000.

Wayne Morellini June 8th, 2005 12:01 AM

Hmm.. Updates! ;)

Adam Burtle June 30th, 2005 02:16 AM

Rai i just sent you an email using the forum's "email member" feature. Feel free to reply when you have a second, thanks.

Frank Schoerner July 15th, 2005 03:33 PM

No update?
No new clips?
Whats going on?

Rob Lohman July 17th, 2005 06:18 AM

Updates here on DVInfo from the Drake team have been inconsistent at best
(I'm not judging anyone here, their time is obviously valuable). The high price
tag (for most people) of the camera (system) may have resulted in some loss
of interest as well? I know I certainly can't afford that kind of money.

Wayne Morellini July 18th, 2005 11:50 PM

Expect more from them, I forget what has been mentioned here, but I imagine new models/upgrades, smaller cameras, and obviously with new models different price points.

Haven't heard from Rai for months myself, so must be busy with something.

The market is tough, price too high and people that can afford it start looking at upgrading their expectations to name brand equipment. Just a matter of finding the sweet spot where people wont go for higher or lower price equipment.

Levan Bakhia August 23rd, 2005 11:38 AM

Update
 
Here is the update about DRAKE. After discussing with DRAKE team when the camera will be available (they promised to have one prototype ready by the begining of August) I went to Germany to actually see and test the camera. And this is a long way too. What I saw was not very impressive in terms of how camera was set up. It of course was not the final version as you can see designs on their web page, but to my surprise it was not even a stand alone camera, it was a camera head connected to a small computer, and it was not easy to move the camera even for 20 meters from where it was set up. Well but this is not a big deal, because you could easily get an idea that it is not finished, it is just that I expected that the camera was much far ahead in terms of development stage. Well, on the other hand, I saw materials shot will camera, and I also had a chance to shoot surrounding with it. I shoot the sky, with some clouds and after some experimenting with the curves and setups I achieved a very good quality of the picture, no I could say that I was very happy with the picture, I also shot myself. Well to sum, the quality was so good that I decided to purchase one. Well I discussed with Marc and he promised to have the prototype ready by the end of August. So we agreed and I left. Several days ago I got news that they have some kind of problem with the sensor and camera will not be ready for the next half year. Well I am kind of upset, because I have delayed several of my project from June to end of August in hope to shoot with DRAKE, and what I got at the end of the August is nothing. And yes, they knew it, they knew I delayed my projects.

I also recomended the camera to so many people, that would help them to sell the camera in the Russian, Caucasus and Ukraine markets, and I feel very uncomfortable telling them that camera is not available at all.

So, keep in mind, DRAKE is a very good camera in terms of picture quality, at least what I saw was increadable. It is very film like and has lots of functions. The best part is that it records in a file format so that you can change all the setting later in post production and you need not to worry about it during the actuall shot. Well I would recomend this camera to all of you out there who seek something that looks like film and have less budget. But keep in mind my experience.

Wayne Morellini August 23rd, 2005 11:53 PM

Drake, sounds vaguely familiar from the past?

End of last year, I think, they showed a full working prototype in one unit (with detachable head for filming on mount) that seemed to have small computer audio sockets on the back. You probably saw an adaption of that or the unit the used to film Dragon feather last year. Haven't heard from Rai for a while.

What sensor did it have, the old one or the new one? Some of these production engineering problems can be fiddly and delay it much, but this is a disappointment, maybe they are delaying for a new sensor or two.

Frank Schoerner August 24th, 2005 02:13 AM

Two months ago, i saw the working DRAKE camera on a HD event in germany. But what i saw was not a small computer, it was the camera from their web page. I dont know why they show you not this camera. I saw also new 12Bit (not 8bit) uncompressed materials shot with this camera and it was ultas impressive.


BTW: Last months. the german magazine computervideo showed DRAKE on their cover.

http://www.computervideo.de/ausgaben/cv4_05-inhalt.htm

A half year ago, the german magazin CUT had a cover story with the DRAKE team:

http://www.cut.biz/heft.php?abo_id=1...l&show_id=1718

Wolfgang Neun August 24th, 2005 02:31 AM

Levan, Thanks for sharing your experience!
Same question: Which sensor have you experimented with? Still the IBIS5A?
In coincidence only yesterday film-tv-video have published a report on the Drake camera at
http://www.film-tv-video.de/newsdeta...49fab1f8d.html
Unfortunately it's in German language only but downloadable as a pdf of 8 pages. You have to register first (for free of course). Here they say that "a fully developed and intensively tested Drake camera will be available from August 2005, the price of a complete system being about 15,000 Euro excl. VAT."
There are some nice pictures accompanying the report. The design of the "final" Drake version looks "cool", IMHO.


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