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|| SportsShooter.com: Member Message Board
EOS 1D Mark IV - Color shift
David Johnston, Photographer
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Pasadena | CA | USA | Posted: 11:54 PM on 03.11.10 |
->> Shot an outdoor lifestyle assignment today. There was a color shift that would occasionally happen.
Two different files, all things being equal, there would be a 5 unit warm color shift.
Also there was a shift when focal length adjustment were made.
EOS 1D Mark IV / Dynalite 1000 Strobe / 70-200 is
Color shift was over entire file ... not just strobe area. |
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Ric Tapia, Photographer, Photo Editor
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Los Angeles | CA | USA | Posted: 1:41 AM on 03.12.10 |
| ->> Did you have it on Auto White Balance? |
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N. Scott Trimble, Photographer
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Lake Oswego | OR | USA | Posted: 4:19 AM on 03.12.10 |
->> Were the interior lights florescent and if so, how old? The meter could catch between pulse cycles, its worse depending on type and age.
I had a dickens of a time in Peru at the hospital I was at as you could see the pulse patterns with the naked eye, and higher fps caught all sorts of color balances |
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David Johnston, Photographer
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Pasadena | CA | USA | Posted: 8:44 PM on 03.12.10 |
->> Received an email from a photographer that had the same problem.
He recommended turning off the Auto Lighting Optimizer. {Apparently
this is a feature best used in video mode.} Disable C.Fn II #4
Still frames that were shot today were all consistent.
Thank you again |
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Stew Milne, Photographer
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Providence | RI | USA | Posted: 7:32 PM on 04.13.10 |
->> I rented a Mark IV this past weekend to shoot gymnastics in a really dark gym. I shot iso 12800, 500/2.8 all weekend. I ran into the color shift issue as well, but I thought it was because of the really bad cycling lights. Then I read this thread and thought maybe I had the Auto Lighting Optimizer on. Well, I did not.
The lights in the gym were so bad they would color shift from blue to red to yellow AND also get brighter and darker. Nothing I could do about it.
On a side note, I could not have shot this event with my current gear (Mark IIN) and am grateful I could use a Mark IV, however I was disappointed in the AF performance of the IV. The body kept wanting to focus on the background even though I had the gymnast in the cross-hairs of the focus point. After looking through the photos, about 25% are out of focus.
I'm a Canon user, but it's this kind of results that make me wish I was a millionaire and could switch to Nikon.
-sM |
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Paul Alesse, Photographer
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Centereach | NY | USA | Posted: 8:55 PM on 04.13.10 |
->> Stew... I wouldn't throw in the towel just yet. Besides the dungeonous worlds of gymnastics reeking havoc with exposure and WB, there is something to be said about how the light reflects off the leos in these caverns that can also effect the AF. The best way to describe it is that it seems that the bulbs are emitting negative light. It's really weird. Nothing seems to really lock on most of the time and couple it with maroon, black, or purple leos and it's a bloody nightmare.
Give it another go under better light even if it's just a little better. I'm a Nikon convert and love my D3s but I have hit some bad gyms too where even the Nikon struggles to aquire focus. |
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Stew Milne, Photographer
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Providence | RI | USA | Posted: 9:55 PM on 04.13.10 |
->> Paul, I didn't use auto WB. I shot a long exposure (1/15) of a white piece of paper and used a custom WB for the whole weekend. I'm not a newbie to photography or gymnastics. I've shot at this particular gym twice, once on a Nikon D700 and this last time on the Canon IV, both times the light cycling affected the color of the images. The D700 had a horrible time focusing in this gym too.
I would have shot with my IIn, but everything would have been 3 stops underexposed. |
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Ric Tapia, Photographer, Photo Editor
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Los Angeles | CA | USA | Posted: 10:47 PM on 04.13.10 |
->> Stew,
You know that plain white piece of paper are not actually "White?" The paper has dyes in them to make them appear more white than there are and can have color shifts.
Also, you said that with your Mk II N you wouldn't have been able to take a single photo but with the Mk IV you were able to have over 7 out of 10 photos in focus. Seems like a BIG improvement to me. |
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Paul Alesse, Photographer
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Centereach | NY | USA | Posted: 10:50 PM on 04.13.10 |
| ->> Stew, with all due respect, and I mean that... I didn't think my post implied that you were a newbie to photography nor gymnastics. I know of your reputation. I wasn't questioning your WB settings either. You said you rented a Mark IV and was disappointed. I was simply trying to shed some light on why you might have had some AF problems. |
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Chuck Liddy, Photographer
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Durham | NC | USA | Posted: 10:53 PM on 04.13.10 |
->> Stew, I guess I'm confused. You basically trash the Mark IV by saying "I was disappointed in the AF performance of the IV" then say this "it's this kind of results that make me wish I was a millionaire and could switch to Nikon". Then the next post you say "The (Nikon) D700 had a horrible time focusing in this gym too."
So I guess I'm trying to figure out what your point is. Maybe, just maybe, this is just a crappy place to shoot photos and not the fault of the equipment. |
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Stew Milne, Photographer
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Providence | RI | USA | Posted: 12:12 AM on 04.14.10 |
->> Hey Chuck, actually I think this may be the worse place to take photos, EVER. Well, when it comes to gymnastics, where you aren't allowed to shoot strobes.
I don't know how the gymnasts were able to compete it was so dark. I've actually brought the lighting (or lack of) to the officials and how it could be a hazard. Much like in cricket when they pause the game due to lack of light. If you can't see the beam, how the hell are you supposed to land on it?
I was very disappointed in the D700 performance when I had it on loan. I had the D3 for 3 months and it performed amazingly. I wonder how it would have performed at this gym. I remember shooting at 25800 iso with the D3 and it performed very well, AF was solid and the IQ was fantastic.
Paul, sorry, I tend to get defensive. Thanks for the light shedding. :) I have a reputation?
Ric, I tried all sorts of WB, from custom, to setting the kelvin...nothing worked. The lights cycled and there was nothing I could do about it. It really is one of the strangest things I've seen. Not just color shifts, but at times it looks like someone strobed the gymnasts. Odd shadows and uneven lighting. Yes, 7 out of 10 is better than zero, yet I was disappointed in the performance of the IV. My IIn could focus just fine, but do to the limits of the iso (3200) I would not have been able to shoot.
I think what bugs me most is that Canon didn't surpass Nikon with their latest camera.
just my 2 cents |
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Paul Alesse, Photographer
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Centereach | NY | USA | Posted: 12:40 AM on 04.14.10 |
| ->> Stew...we have some mutual friends shooting for USAG all of whom speak highly of your gymnastics work. |
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Chuck Liddy, Photographer
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Durham | NC | USA | Posted: 9:49 AM on 04.14.10 |
| ->> Stew, I hear what you're saying to some extent. I just think sometimes we assume the technology is going to take us places (photographically) we still can't go. The way we make photos had taken a quantum leap in the last 15 years and it still amazes me every single day. hell, I was amazed by film and the whole process that recorded light...but the fact if the matter is we are still limited by technology. There are still situations that cameras just aren't going to work as well as we want. We should be careful what we wish for. Someday they probably will do "everything" then a lot of us really will be out of jobs because everyone who buys a camera won't need to have a skill set at all. |
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Stew Milne, Photographer
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Providence | RI | USA | Posted: 11:49 AM on 04.14.10 |
->> Chuck, that has already started to a degree. There are many a person holding a camera out there pushing a button and the camera is doing everything for them. By let's not get OT.
It is quite amazing the technology in these cameras and I really shouldn't complain. I still manual focus on occasions just to prove I can still do it. But, AF is key for these low light situations and also when you've been shooting for 12 hours and your eyes are tired. |
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