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-   -   Feedback needed for new preset (https://www.dvinfo.net/forum/canon-xh-series-hdv-camcorders/90582-feedback-needed-new-preset.html)

Tom Roper April 5th, 2007 11:50 AM

Quote:

Originally Posted by Steven Dempsey (Post 654418)
To be honest, I would probably develop a completely different setting for the indoor shot you are using in your test. Too much mixed lighting involved.

There's no preset you can make that will make my office look anything better than 4 white walls should.

I will shoot some daylight 5600k on my lunch break and post the grabs late this afternoon or tonite after dinner.

Right now skies are giving way to overcast in Denver.

Steven Dempsey April 5th, 2007 11:54 AM

Quote:

Originally Posted by Tom Roper (Post 654440)
There's no preset you can make that will make my office look anything better than 4 white walls should.

Actually I was referring to refinements such as color gain and the like. I like to turn that stuff down for indoor presets.

Looking forward to the results of your test today. Isn't this fun? :)

Tom Roper April 5th, 2007 01:50 PM

I shot the video, still in the cam though.

Copied your settings exactly, 5600K, F3.7 @ 1/150, ND2, hazy light, windy and dusty.

Lots of neutral tones, a machine gray metal warehouse building in the background, concrete sidewalks, asphalt street, a green lawn with some burn spots and a tree. Perfect composition! And actually it will be good for highlighting color casts in the mid tones, if any.

Steven Dempsey April 5th, 2007 01:51 PM

Good job, I'll watch out for you post.

Alex Leith April 5th, 2007 01:56 PM

Can't wait to see it.

Tom Roper April 5th, 2007 09:16 PM

Unspeakably Horrid
 
2 Attachment(s)
I'll go back to system presets before I accept either of these. I've never seen A1 footage this ugly.

Steven's on the left. Mine on the right.

Steven Dempsey April 5th, 2007 09:39 PM

1 Attachment(s)
Tom, I don't have time right now to really look at them in depth but I would try to even out the exposure setting before doing a comparison. I tried to make the one with my settings a little more like your one in terms of exposure:

Tom Roper April 5th, 2007 09:58 PM

They were shot at the same exposure, but yours had the cine1 gamma and -5 master pedastal giving it more contrast.

Steven Dempsey April 5th, 2007 10:46 PM

I understand. The only reason I am boosting the still with my settings is so that I can more easily judge color casts. Underexposure can cause colors to pop more than they should. I'll take a look at these tests in the morning.

Thanks for doing this, I appreciate it.

James Binder April 6th, 2007 01:56 AM

2 Attachment(s)
Interesting – notice the sidewalks in both. Tom’s use of Stevens preset looks decidedly more magenta, while Stevens use of his preset is more on the green side.

What accounts for that? Lighting conditions, the sun, time of day, etc?

Judging by the shadows, Toms is in direct overhead sunlight – while Stevens shot has softer more diffused light (again judging by the shadows).

Tom using Steven preset on Left >> Steven using Steven preset on right.

Eric Sipe April 6th, 2007 02:13 AM

But in this last case if both cameras had the "same" default settings, shouldnt the asphalt be pretty close to the same color not having a magenta compared to a greenish? (take my sayings with a grain of salt, i am just speculating) (and trying to learn at the same time)

Mike Teutsch April 6th, 2007 07:35 AM

What white balance was used on each?

Mike

Tom Roper April 6th, 2007 08:04 AM

5600K on the white balance for both presets

Mike Teutsch April 6th, 2007 08:07 AM

Quote:

Originally Posted by Tom Roper (Post 655061)
5600K on the white balance for both presets

Doesn't look that it was that bright, looks cloudy, but at least they were both the same. Sure does not look good! :)

Mike

Tom Roper April 6th, 2007 08:10 AM

Quote:

Originally Posted by James Binder (Post 654954)
Interesting – notice the sidewalks in both. Tom’s use of Stevens preset looks decidedly more magenta, while Stevens use of his preset is more on the green side.

What accounts for that? Lighting conditions, the sun, time of day, etc?


What accounts for it I believe is that the calibrations are different between the two cams. Steven's preset is definitely better on his cam and worse on mine, and vice versa.

Tom Roper April 6th, 2007 09:08 AM

Quote:

Originally Posted by Steven Dempsey (Post 654884)
I understand. The only reason I am boosting the still with my settings is so that I can more easily judge color casts. Underexposure can cause colors to pop more than they should. I'll take a look at these tests in the morning.

Thanks for doing this, I appreciate it.

And I appreciate it too.

Steven Dempsey April 6th, 2007 10:59 AM

1 Attachment(s)
Okay Tom, here's the problem and potential solution as I see it.

I think if we are going to do a scientific test then we need to quit using a generic white balance like 56k. The shots I have taken have been mainly in the morning and evening light when there are natural casts. Because I created a neutral image, that means I am essentially changing the natural casts of nature and when the light shifts from the time I took the still, the color balance goes way off.

So here's what I did. I used a white card this morning to white balance and my preset looked horrible. I tried to calibrate it back to a neutral color palette based on the correct white balance and here's where I ended up:

EDIT at 12:16 PST: I just changed all these settings, they should be right now....the image remains the same

Gamma: Cine1
Color Matrix: Normal
Color Gain: 40
Color Phase: 0
Knee: Low
Black: Middle
Master Ped: -5
Setup Level: 0
HDF: High
H/V Detail: 0
Sharpness: 3
NR1: Off
NR2: Off
Coring: 0
Red Gain: -2
Green Gain: -15
Blue Gain: -3
RG Matrix: 0
RB Matrix: 0
GR Matrix: 0
GB Matrix: 10
BR Matrix: 0
BG Matrix: -13

Make sure you properly white balance the camera before shooting anything with this. Of course if you change the Color Matrix or Gamma, it shouldn't introduce any cast at all so it would work for your settings also. Let me know the results of your own tests.

Here's a still taken with the camera properly white-balanced:

Piotr Wozniacki April 6th, 2007 11:35 AM

Looks nice, but the long deep shadows indicate quite different kind of light - its effect on the picture is similar to cine gamma. So, again no good for comparison (altough your point about proper white balancing is valid of course).

Steven Dempsey April 6th, 2007 11:48 AM

I think this is okay for comparison because I white balanced for the dominant sunlight and most of the frame is made up of objects affected by that particular light. I don't usually white balance any other way. How do you go about white balancing for a scene, I'm curious.

Piotr Wozniacki April 6th, 2007 11:59 AM

Frankly, with the Canon I had to use a preset (or manually balance to a white card, when the WB was critical); the AWB I couldn't trust - it tends to be wandering which is even worse than a wrong but fixed hue. Now with the Sony, I shoot with AWB most of the time, with white walls staying all shades of white...

Steven Dempsey April 6th, 2007 12:55 PM

Aargh, I screwed up, ignore my last detailed post. The white balance was off, recalibrating now.

EDIT: I changed the settings in my previous post. Test them and let me know if I am becoming insane.....

James Binder April 6th, 2007 03:56 PM

This is an interesting thread insomuch as what we are discovering:

This preset (or any) will look ‘correct’ with the white balance balanced to that lighting condition at that time of day – and even in that particular location!

Or another way of putting my thought --

Since sunlight color temp can very dramatically through the day, it seems that a preset – particularly a preset for outdoor vivid color is very specific to a particular location at a particular time of day – with the white balance calibrated under those conditions.

Is it possible to create a present that works well under all outdoor lighting conditions? I would think that you would have to have several, i.e., early morning, mid-morning, early afternoon, late afternoon, early evening etc. Not to mention, the same presets under different lighting conditions, i.e., hazy, partly cloudy, cloudy, clear, etc.

I guess this points up the fact that you really need to tweak the settings under the current conditions in which you are shooting.

And this doesn’t even take into account that the perception of “vibrant” pleasing colors is highly subjective. The amount of variables that apply to capturing what pleases the eye are mind boggling.

Nevertheless – thanks for all of the work and posts – I do like the present under the conditions as shown in your latest example…

Piotr Wozniacki April 6th, 2007 04:10 PM

Very, very good point. This is why - after getting fascinated at first - I quickly dismissed the tweakability of the XH as being so much important. It's always better to record everything as true as only possible on tape, and only then try to achieve your desired look in post.

And as far as recording true, juicy and vibrant colours most of the time, there's nothing like the good, old Sony.

Steven Dempsey April 6th, 2007 04:13 PM

You are wrong and I will prove it, by cracky! :)

Geoff Dills April 6th, 2007 06:36 PM

Quote:

Originally Posted by Piotr Wozniacki (Post 655391)
It's always better to record everything as true as only possible on tape, and only then try to achieve your desired look in post.

I love statements with words like "always". They "always" make me want to go break a rule.

Lots of times it's better to create a look in the field for a project, for a variety of reasons. For instance ESPN chose a tobacco filter for their SportsCentury series to give a certain look. One could argue it didn't make sense since they couldn't reuse the footage in other programs, but the amount of time saved in post justified the choice.

Steven Dempsey April 6th, 2007 06:46 PM

Well said :)

OKay, this preset thing is going to take a lot more work. Apparently there is still a lot of magenta in my preset. I think my solution is to work from an actual grey card to calibrate.

Stay tuned and I would love others to get involved in trying to create this preset without a color cast

Tom Roper April 6th, 2007 07:13 PM

Stephen, it's not that there's still a lot of magenta in your preset, it's that there is a deficit of the green gain, which is the complimentary color to magenta. Add some of what you took out back in, and the magenta goes away.

I'm trying things too, but when things aren't working out go back to the baseline. The color is not so far off with the system color that *everything* needs to be tweaked.

I'm reminded of a calibration struggle I had with an HDTV, where the picture just didn't look right no matter what happened with adds and cuts to the RGB gains. In the service menu, you had access to the color decoder, which is what we have with the matrix adjustments. The most basic adjustment to the color decoder is the hue, or color phase in the case of the A1. I see a lot of potential with your preset from the standpoint of gamma, saturation. Why not try a simple tweak to the color phase while leaving the RGB gains and RGB matrices zero'd? There's 18 presets in the DVI Network library, only 2 even touch the color phase, and some are just all over the map. The problem I had on the HDTV when RGB gains were up and down all over the place, was that it would be right in the highlights but wrong in the shadows, or vice versa. Or the color would shift across the gray scale. You're mention of using the gray card is laudable, but what if the combination of matrix adjustments cause a magenta cast at the low end of the IRE scale, and a green cast at the high end? That's the danger. ISF will normalize the gray scale tracking, so that the color temperature remains constant from 10 to 100 IRE. To adjust the gray scale tracking, the color temperature is set to 6500K at each IRE step. In other words, you need not just a gray card but gray cards that go from white to black. That's all the advice I will offer you. In my case, I'm going back to the basics under the assumption the hue is pretty accurate to begin with, and try some minor adjustments to the color phase.

Ken Ross April 6th, 2007 09:04 PM

Guys, I've often thought about getting an A1, but I really get concerned about the lengths you guys seem to be going to in order to get a simple, natural, color balance. What am I missing? I know the camera is capable of great video, but why can't you get great colors without adjusting 15 controls?

I've had the HV10 and now the HV20 and I simply pull the thing out and I get the kind of color & vibrance you guys seem to keep fiddling to get. I'm honestly not being sarcastic, but it is a concern if I were to go in the direction of an A1.

I've also got an FX7, but I honestly think the HV10/HV20 produces a superior HDV image to the 3-chip Sony....go figure.

James Binder April 6th, 2007 10:26 PM

Quote:

Originally Posted by Piotr Wozniacki (Post 655391)
Very, very good point. This is why - after getting fascinated at first - I quickly dismissed the tweakability of the XH as being so much important.

Quote:

Originally Posted by Ken Ross (Post 655521)
Guys, I've often thought about getting an A1, but I really get concerned about the lengths you guys seem to be going to in order to get a simple, natural, color balance. What am I missing? I know the camera is capable of great video, but why can't you get great colors without adjusting 15 controls?

Respectfully, I think you’ve missed the point here. The attraction of this camera (and the point of this thread) is that we CAN make fine adjustments that go BEYOND what most cameras (in this price range) are capable of. Indeed, what we are discussing here is the ability to fine tune and manipulate the picture in ways which most cameras don’t even come close.

In terms of a perfect “out of the box” look: if you want a great variety of color choices, load up the 18 + presets included in the preset section of this forum and go to it. That alone is a huge asset and a wonderful leaping off point into the flexibility of this camera. It’s like having 18 + “out of the box” cameras.

I like some, wasn’t initially thrilled with the ‘factory’ look/setting straight out of the box -- just read some of my earlier posts. But after I spent some time with this camera I was and am still blown away. After doing some green screen work with this camera, it’s HDV all the way and I’m not looking back!

And…I would not dismiss the ‘tweakablity’ of this camera at all. Quiet the opposite. I encourage anybody here to look at other’s work such as Steven’s and see what is possible with this camera. The look he has been able to achieve with this camera – both shooting and in post – is quiet remarkable. A look that is simply not possible with other cameras in its price range.

This camera was designed I believe to give the cinematographer in all of us (or those who have it in them) a vast and rich set of tools. Will some use it straight out of the box with all of the settings in full auto mode? You bet. But for them, they are missing so much of what this camera has to offer.

Perhaps this camera is not for everyone. There are those who want something with fewer choices. But to them I say go take a look at what others have been able to achieve with this camera (such as Steven) and try to reproduce that on a camera with less flexibility.

I take great pride in the fact that we are able to have a thread such as this – discussing fine tuning issues. I love that fact. I’ve not seen a thread such as this on any of the other cameras message boards!

GO A1!!

Jonathan Gentry April 6th, 2007 11:14 PM

I would agree that in a perfect world where money and time is no object that images should be set up to capture the maximum tonal and color range and then be tweaked in post, but when you make settings in-camera it saves alot of rendering time and money on the latest and greatest post equipment.

Piotr Wozniacki April 7th, 2007 01:34 AM

Guys, I didn't want to upset those who went for the A1. I'm a control-freak myself, so I loved the tweakability of the Canon, especially when used from within the Console 1.1 - and I had an opportunity to play with it for 6 weeks! What I wanted to say though is that this tweakability isn't by itself making the A1 a better choice. As James pointed out, whether a preset is great or crappy depends on too many variables to always count on it. Frankly, if I were to make a critical shot, I would rather choose the default look rather than even the most "interesting" preset, because you can never be sure what it's really going to look like under given circumstancies, sometimes quite different than when you were creating the preset.

Unlike presets, experiments in post are reversible...

However, in a fully controlled environment and with direct capture with Console, using the XH picture settings can be really enjoyable and creative.

Ken Ross April 7th, 2007 10:05 AM

And I guess that's what I wanted to say. Yes, a given preset might look great under one particular lighting condition. Change the lighting just a bit and now that preset may look pretty bad. So in my mind the perfect camera should look VERY accurate using a fully automatic mode, but does have the capability to tweak beyond that. I'd generally want an accurate picture in a relatively auto mode and then have the capacity to tweak with camera controls or in post.

However the feeling I'm getting (and please correct me if I'm wrong), is that in a full auto mode the camera does not have quite the accurate color as some other HDV cams. I fully understand with the numerous tweaks available you can get there, but set to 'auto' the A1's picture is just not quite as accurate.

Michael Richard April 7th, 2007 10:43 AM

who buys a $4000 camera and shoots full auto?

Steven Dempsey April 7th, 2007 10:43 AM

More people than you would imagine...

Chris Hurd April 7th, 2007 11:21 AM

Steven is of course quite right, there are a significant number of people who tend to always shoot in Auto mode with these camcorders, and there's nothing at all wrong with that. In fact, for those folks who are new to videography, I tend to go out of my way to strongly encourage them to go ahead and make full use of the Auto modes. But that's not the topic of this thread, so let's please return to the subject of discussing Steven's preset. Thanks in advance,

Ken Ross April 7th, 2007 12:18 PM

Quote:

Originally Posted by Michael Richard (Post 655760)
who buys a $4000 camera and shoots full auto?

Michael, please read what I said. I indicated I wanted a camera that's accurate in the auto mode, but is capable of being tweaked from that point. I don't think a camera should 'have to' be tweaked just to get relatively accurate colors in most situations.

Steven Dempsey April 7th, 2007 01:08 PM

Try this. I used the grey blocks of a MacBeth Chart to calibrate the preset this time. (All I changed was the green gain value) Someone please try this in sunny weather with lots of colors and post. Doesn't look like it's going to be sunny anytime soon here in Seattle.

Gamma: Cine1
Color Matrix: Normal
Color Gain: 40
Color Phase: 0
Knee: Low
Black: Middle
Master Ped: -5
Setup Level: 0
HDF: High
H/V Detail: 0
Sharpness: 3
NR1: Off
NR2: Off
Coring: 0
Red Gain: -2
Green Gain: -2
Blue Gain: -3
RG Matrix: 0
RB Matrix: 0
GR Matrix: 0
GB Matrix: 10
BR Matrix: 0
BG Matrix: -13

Alex Leith April 7th, 2007 04:02 PM

Quote:

Originally Posted by Ken Ross (Post 655795)
Michael, please read what I said. I indicated I wanted a camera that's accurate in the auto mode, but is capable of being tweaked from that point. I don't think a camera should 'have to' be tweaked just to get relatively accurate colors in most situations.

I don't think any camera actually has truely "accurate" colour. No sensor responds to light in the same way the human eye does, so camera manufacturers have to make a choice about how their DSPs render the voltages being received from the CCDs/CMOSs. What we think of as "natural" or "accurate" tends to change over time as particular approaches to colour come or go from fashion.

That said, I agree that Canon went for a particularly strange "native" setup. It barely sells the camera given the current trend for very vibrant looking images. And, as we've established, doesn't look terribly accurate (though I can't really make a judgement 'cause my monitor is on vacation at the moment). And the Canon Cine Gammas are a bit of a joke compared to Panasonic and (to a lesser extent) Sony's.

I would guess that the way to accurately dispatch any colour cast or weirdness in the image would be for someone with a colour meter and an accurate colour chart to test under controlled lighting. That way we could be sure that white is white, and all the other colours are technically where they should be on the scope.

Unfortunately I don't have a colour meter, and I don't trust my lights to be particularly accurate CT-wise, and, er, oh yes... I don't have a macbeth chart.... Otherwise I'd do this myself! ;-D

James Binder April 7th, 2007 04:50 PM

3 Attachment(s)
Hey Steven –

Check these out.

1. Steven vivid-wht bal.jpg: I white balanced to the available light.

2. Steven vivid-wht bal-less sun.jpg: Same white balance setting, less sunlight (sun went partially behind the clouds)

3. Steven vivid 5500k.jpg: White balance set to 5500K – and – ND 1/32, App – F2.8

I wanted to turn the preset off to the factory settings and shoot the same thing (and post a .jepg of it), but the sun disappeared for the rest of the afternoon – just as I was getting ready to do so.

I’d still like to do this – and think it would be valuable to do so in order to have some sort of visual baseline.

The preset is definitely vivid – and seems to work well with still life, nature, plants -- but I’d still like to see what it looks like on people/skin tones and other ‘real life’ scenarios where our brain tells us what looks right and what doesn’t.

Nice work – thanks…

Note -- the highlights are blown out a bit...sorry

Mike Teutsch April 7th, 2007 06:36 PM

Quote:

Originally Posted by Alex Leith (Post 655886)
I don't think any camera actually has truely "accurate" colour. No sensor responds to light in the same way the human eye does, so camera manufacturers have to make a choice about how their DSPs render the voltages being received from the CCDs/CMOSs. What we think of as "natural" or "accurate" tends to change over time as particular approaches to colour come or go from fashion.

That said, I agree that Canon went for a particularly strange "native" setup. It barely sells the camera given the current trend for very vibrant looking images. And, as we've established, doesn't look terribly accurate (though I can't really make a judgement 'cause my monitor is on vacation at the moment). And the Canon Cine Gammas are a bit of a joke compared to Panasonic and (to a lesser extent) Sony's.

I would guess that the way to accurately dispatch any colour cast or weirdness in the image would be for someone with a colour meter and an accurate colour chart to test under controlled lighting. That way we could be sure that white is white, and all the other colours are technically where they should be on the scope.

Unfortunately I don't have a colour meter, and I don't trust my lights to be particularly accurate CT-wise, and, er, oh yes... I don't have a macbeth chart.... Otherwise I'd do this myself! ;-D

Alex,

The purpose of this thread to evaluate a preset for the Canon camera submitted by Steven. Not to determine what camera has the BEST color.

Each manufacturer decides what they want for their base color. Some decide to have the colors more intense and to "pop!" Some have made other decisions. Pany likes the color to POP, Sony may be in the middle and Canon has mostly been in the lower or natural color range.

Canon for one, has decided to leave the colors at what I would call very normal, you may call them flat! If you want more vibrant colors, you can change the settings and get them as the camera has a vast number of adjustments! This is a matter of personal preference and some want one and some want another.

During one of my entries for the DV Challange, I left the colors "normal on my XL2," and I was criticized for it. The day I filmed at the beach it was cloudy and overcast and I thought the video looked very natural as captured by my XL2. Others thought it was bland and needed to be punched up. It may have cost me the win, and I later changed the footage in post to pump it up. But, the truth is that it was not "natural," it was changed from what was natural.

Some want one thing and some want another! It is just a matter of personal preference.

Let's just look at Steven's preset.

Mike


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