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Search: Posts Made By: Oscar Spierenburg
Forum: Apertus: Open Source Cinema Project February 2nd, 2009, 04:17 PM
Replies: 1,114
Views: 300,046
Posted By Oscar Spierenburg
Small update: I've finished a follow focus...

Small update:

I've finished a follow focus system for the 35mm adapter. The follow focus moves the whole lens mount, so you don't need to change anything (accept focus marks) when you change a...
Forum: Alternative Imaging Methods January 28th, 2009, 06:48 PM
Replies: 3
Views: 3,913
Posted By Oscar Spierenburg
I guess so. I think it looks like Steev Dinkins...

I guess so. I think it looks like Steev Dinkins "Ultimate 35mm adapter" (http://www.dvinfo.net/conf/alternative-imaging-methods/38743-ultimate-35mm-adapter.html)
Forum: Apertus: Open Source Cinema Project January 23rd, 2009, 08:01 AM
Replies: 1,114
Views: 300,046
Posted By Oscar Spierenburg
I'll receive the ART dual pre next week. I've...

I'll receive the ART dual pre next week. I've chosen this one because it's exactly what we need (and not more than we need): a mic pre amp with phantom power and direct monitoring output. It's a lot...
Forum: Apertus: Open Source Cinema Project January 20th, 2009, 07:26 AM
Replies: 5
Views: 4,569
Posted By Oscar Spierenburg
I'm not sure. I hope it would work like you...

I'm not sure. I hope it would work like you describe it. The first tube is actually creating the distance to the focal plane. So what is left is the eyepiece, I don't know if you can extend it..

...
Forum: Apertus: Open Source Cinema Project January 12th, 2009, 06:38 AM
Replies: 1,114
Views: 300,046
Posted By Oscar Spierenburg
Hi everyone, For those who don't know; the...

Hi everyone,

For those who don't know; the camogm2 camera software can record audio ( see wiki (http://wiki.elphel.com/index.php?title=Camogm#Camogm2) )

One audio USB device I came across that...
Forum: Apertus: Open Source Cinema Project January 11th, 2009, 05:28 AM
Replies: 5
Views: 4,569
Posted By Oscar Spierenburg
Sebastian, I have used such a mirror prism in the...

Sebastian, I have used such a mirror prism in the viewfinder. First, the beamsplitter in front of the sensor mirrors the image into the tube that sticks out of the camera. Then the image is mirrored...
Forum: Apertus: Open Source Cinema Project January 2nd, 2009, 10:32 AM
Replies: 5
Views: 4,569
Posted By Oscar Spierenburg
optical viewfinder extension.. DIY?

Hi everybody,

Some time ago I built this optical viewfinder on my Elphel Cmos camera (see Elphel 333 thread)
One thing I'd like to improve, if possible, is to make some sort of extension....
Forum: Apertus: Open Source Cinema Project January 2nd, 2009, 09:47 AM
Replies: 1,114
Views: 300,046
Posted By Oscar Spierenburg
Sebastian, the 35mm adapter is adapted from a...

Sebastian, the 35mm adapter is adapted from a photo-enlarger. It has a focusing mechanism on the side like a follow focus. Much too imprecise to be really usable, but I can easily put some gears in...
Forum: Apertus: Open Source Cinema Project December 31st, 2008, 04:03 PM
Replies: 1,114
Views: 300,046
Posted By Oscar Spierenburg
Here are two pics of the rods with the tablet PC...

Here are two pics of the rods with the tablet PC mount and the 35mm adapter.
It's not a designed thing... just a rough setup.

Andrey, I've done some experimenting, but I can't really figure out...
Forum: Apertus: Open Source Cinema Project December 30th, 2008, 07:23 PM
Replies: 1,114
Views: 300,046
Posted By Oscar Spierenburg
Ah, now I remember you mentioned this before....

Ah, now I remember you mentioned this before. I'll experiment with this tomorrow!

I've made a lot of progress lately (actually been working every day on the camera this month)
The rods support...
Forum: Alternative Imaging Methods December 29th, 2008, 07:13 PM
Replies: 4
Views: 4,400
Posted By Oscar Spierenburg
You'd probably be interested in the Elphel...

You'd probably be interested in the Elphel project. We are filming 1920 x 1080 pixels (from a 5mpixel chip) to an onboard hard disk right now.
It's an ever continuing project because the founder of...
Forum: Apertus: Open Source Cinema Project December 29th, 2008, 11:37 AM
Replies: 1,114
Views: 300,046
Posted By Oscar Spierenburg
My last post didn't seem to make much sense when...

My last post didn't seem to make much sense when I compare it to this (http://www.matrix-vision.com/info/calculator.php?lang=en) page.
I'd get a FL 2.41 lens (or at 30mm distance a FL 4 lens)

I...
Forum: Apertus: Open Source Cinema Project December 27th, 2008, 01:03 PM
Replies: 1,114
Views: 300,046
Posted By Oscar Spierenburg
Hello Everyone. I've been redesigning my...

Hello Everyone.

I've been redesigning my 35mm adapter. Because the size got a bit bigger than I wanted, I'd like to keep the distance between the Elphel and the projected 35mm image as small as...
Forum: Apertus: Open Source Cinema Project December 16th, 2008, 03:53 PM
Replies: 1,114
Views: 300,046
Posted By Oscar Spierenburg
I've been testing the camogmgui...

I've been testing the camogmgui (http://wiki.elphel.com/index.php?title=Camogmgui) (developed by Sebastian) last couple of days and it works great. Really great job so far!
Sebastian, I have some...
Forum: Apertus: Open Source Cinema Project December 14th, 2008, 09:57 AM
Replies: 1,114
Views: 300,046
Posted By Oscar Spierenburg
That's a good suggestion Steven. I was looking...

That's a good suggestion Steven. I was looking for something like this. I've asked Andrey about it and he also thinks it would work fine. I'll try to find a store where I can order one in my country,...
Forum: Apertus: Open Source Cinema Project December 10th, 2008, 08:01 AM
Replies: 1,114
Views: 300,046
Posted By Oscar Spierenburg
It looks very good... the red circle on the back...

It looks very good... the red circle on the back reminds me of.... hmm can't remember :)
It's only a bit different from my own ideas for the rod supports. I'll post something soon.
In your setup,...
Forum: Apertus: Open Source Cinema Project December 6th, 2008, 12:36 PM
Replies: 1,114
Views: 300,046
Posted By Oscar Spierenburg
Yet another thing I came across: ...

Yet another thing I came across:
http://www.thomann.de/gb/the_tbone_micplug_usb.htm?partner_id=87171]THE T.BONE MICPLUG USB - U.K. International Cyberstore

If audio recording is functional on the...
Forum: Apertus: Open Source Cinema Project December 3rd, 2008, 06:43 PM
Replies: 1,114
Views: 300,046
Posted By Oscar Spierenburg
Yes, I was reading about the firmware update on...

Yes, I was reading about the firmware update on the Wiki.



The one I saw would be very similar to this one: http://www.fatpro.com/images/1fbps_1.pdf
Forum: Apertus: Open Source Cinema Project December 1st, 2008, 08:05 PM
Replies: 1,114
Views: 300,046
Posted By Oscar Spierenburg
Hey Sebastian, I came across a battery...

Hey Sebastian,

I came across a battery powered phantom power supply for microphones. It's not that expensive (45 euros over here) Since it is 48V, I was wondering if it is possible to adapt this...
Forum: Alternative Imaging Methods October 31st, 2008, 09:36 AM
Replies: 623
Views: 137,435
Posted By Oscar Spierenburg
Bob, my guess would be as wild as yours, but I...

Bob, my guess would be as wild as yours, but I think you're probably right on most parts.
I don't know if it counts for every wax adapter, but mine has a condenser lens in front and back of the...
Forum: Apertus: Open Source Cinema Project October 27th, 2008, 02:24 PM
Replies: 1,114
Views: 300,046
Posted By Oscar Spierenburg
Andrey/Sebastian, I noticed someone wrote on...

Andrey/Sebastian,

I noticed someone wrote on the Elphel wishlist on wiki: "Flash mode for rolling shutter"
Would this be some kind of semi-global shutter?
Forum: Apertus: Open Source Cinema Project October 16th, 2008, 04:32 PM
Replies: 1,114
Views: 300,046
Posted By Oscar Spierenburg
That's good to hear. So you don't use the...

That's good to hear. So you don't use the live-DVD that comes with the camera? Was it easy to install all the software needed for Elphel? I was planning to install Ubuntu to my hard drive, but I was...
Forum: Apertus: Open Source Cinema Project October 16th, 2008, 09:04 AM
Replies: 1,114
Views: 300,046
Posted By Oscar Spierenburg
Hi Sebastian (and others), I'm wondering if...

Hi Sebastian (and others),

I'm wondering if it'll be a good idea to buy one of those 7" mini laptops (UMPC) to make the camera portable. Can you tell if the hard-disk recording on the camera works...
Forum: Apertus: Open Source Cinema Project October 7th, 2008, 10:17 AM
Replies: 1,114
Views: 300,046
Posted By Oscar Spierenburg
Not bad at all! There seem to be some artifacts...

Not bad at all! There seem to be some artifacts in moving objects in the RAW video. But overall the quality has improved very much, also the mjpeg compressed one (compared to my own test a couple of...
Forum: Apertus: Open Source Cinema Project October 7th, 2008, 04:37 AM
Replies: 1,114
Views: 300,046
Posted By Oscar Spierenburg
That's an enormous progress. What frame...

That's an enormous progress. What frame rate/frame size where you able to capture?
Did you capture to the PC or directly to the cameras HDD?
Showing results 76 to 100 of 725

 


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