I am having some issues with a MK II N or images captured by the N.

Thanks,

James

Edited by Rockies Photo on Mar 30, 2008 at 03:51 PM GMT

Is it banding you are having issues with James?

Here's an example of Banding at High ISO from my MarkIIN.
If you have the issue like this, don't even bother trying to fix it. You need to send it in to Canon and have them replace the sensor assembly. Its a common problem with the MarkIIN's.

Thanks for the image. Nope not a banding issue. I wanted to see a banding example, to know if that was the problem. None of my images have the banding lines through them. I am having major color shifting at ISO 3200. But, I also noticed on images shot on my 5D last night too. I will get some images uploaded a bit later, as I am headed out to dinner.

What type of lighting were you taking pictures under?

I had the same banding on my first mark2n and sent it back to b&h.

When you take pics under certain types of lights, this camera shoots fast enough to catch the different cycles of light. Put some examples on so we can see.
Barry

Here are banding issues I had at high ISO with 2N. I could see the banding in the LCD at ISO 1600, and banding was visible down past ISO 800. Canon fixzed it after two rounds by replacing the sensor and sensor assembly, PCBs and FCPs under warranty.

gene, are those pictures crops?

No, downsampled original photos. I can post a link to a full size if it helps.

Rockies Photo wrote:
Thanks for the image. Nope not a banding issue. I wanted to see a banding example, to know if that was the problem. None of my images have the banding lines through them. I am having major color shifting at ISO 3200. But, I also noticed on images shot on my 5D last night too. I will get some images uploaded a bit later, as I am headed out to dinner.

Can't wait for the images ...

Had a problem with Capture One 4, forgot I had DPP on the MBP. Images have been resized, but that is it.

Edited by Rockies Photo on Mar 30, 2008 at 03:40 PM GMT

Image #1

Normal Lighting on Field

Image #2

Color shift in Lighting on Field

Image #3

Normal Lighting with 5D

Image #4............ EXIF is intact with all 4 Images

Color Shift in Lighting with 5D

http://www.fredmiranda.com/forum/topic/628933/1#5572359

It's not a camera problem. It's because of a crappy lighting system at the field. If they had used all three phases of the electricity supply instead of just one to supply the lights and if they mixed them up at each lighting stand then you'd have more consistent lighting with less flicker and less colour variation. The lighting is working at 50Hz or 60Hz (60 in the US) and your shutter speeds are way faster than that in order to freeze the sports action and so it's practically impossible to overcome the problem except by going to another field

- Alan

Alan321 is correct, the examples above are due to lighting cycles. The local college where I sometimes shoot has very low, cycling lights whose fields don't overlap much. It's not uncommon for two consecutive 1D2N shots to show red hair/yellow wall and yellow hair/red wall on high speed.

When I shoot under the also cycling lights at venues such as the University of Phoenix Stadium (Phoenix Cardinals) or the Jobing.com Arena (Phoenix Coyotes) the lights are so high up that there is virtually no WB shift due to cycling at high shutter speeds.

At the softball field shown in the above posts there is no white balance. Nor is there a single desirable shutter speed. Each image has to be finished separately for WB and exposure. Been there done that

Alan321 wrote:
It's not a camera problem. It's because of a crappy lighting system at the field. If they had used all three phases of the electricity supply instead of just one to supply the lights and if they mixed them up at each lighting stand then you'd have more consistent lighting with less flicker and less colour variation. The lighting is working at 50Hz or 60Hz (60 in the US) and your shutter speeds are way faster than that in order to freeze the sports action and so it's practically impossible to overcome the problem except by going to another field

- Alan

Agreed, this is a WB balance issue because of the lights...typical. Best to shoot RAW and change in post before conversion.

On the banding, I've had two Ns and one now...never seen this before. Send it back.

In the shots of #19, it is easy to tell that this is a lighting issue. Notice that while the field has dramaticaly changed color, the scoreboard has not.


It does seem odd that the scoreboard is much darker in the red shot. I expected the metering to be different, but it is the same.

I concur

This is exactly what I said above. I shot a track meet at the University of Iowa and because it was indoors and the lighting was even closer, I had bad shift in color just like yours. I get this at most of the high school basketball courts around here too.
Just something you have to plan on in PP.

Dont feel silly though. I thought I had a problem with my camera too.

Barry

I am very thankful for the responses. I read the link from Canon 10D. Very informative regarding catching the lighting cycles. I have never encountered those type of lighting issues before, so it threw me.