Mercedes...

[ALarsh]

Hey,

I went to the Chicago auto show today and took many pictures. I really liked this Mercedes but there is a lot of purple fringing on it. How do I try to minimize this error in the future?

I am using a Canon G5 and I was shooting in the auto mode.



http://www.freewebs.com/alarsh/101_0169.jpg

I have already taken the photo to photoshop and have been working on taking away the purple fringing but would like to reduce this error in the future.


This photo is supposed to just give you an idea how much purple fringing there is. The photos quality has been reduced greatly to save web space.

Thanks

[FocalSpeed]

Don't use flash, that would solve your problem

[ALarsh]

lol... something soo simple would screw up a photo that much.

After I went and looked back at the photos after you mentioned that I noticed that the ones I didn't use flash on didn't have this problem.

Thanks

[Anders Östberg]

Don't use flash, that would solve your problem
I'm not sure the flash is the problem, I have many pictures with purple fringing without flash. I think it's more a matter of correct exposure, digital cameras have a problem with local overexposure at bright reflections like in this picture, the sensor can't handle this in a good way.

[ALarsh]

Don't use flash, that would solve your problem
I'm not sure the flash is the problem, I have many pictures with purple fringing without flash. I think it's more a matter of correct exposure, digital cameras have a problem with local overexposure at bright reflections like in this picture, the sensor can't handle this in a good way.

How would I bring the exposure down? I am a newbie to cameras and need some help.

Thanks.

[Anders Östberg]

Don't use flash, that would solve your problem
I'm not sure the flash is the problem, I have many pictures with purple fringing without flash. I think it's more a matter of correct exposure, digital cameras have a problem with local overexposure at bright reflections like in this picture, the sensor can't handle this in a good way.

How would I bring the exposure down? I am a newbie to cameras and need some help.

Thanks.
I don't have a G5 so I can't tell you how to dial in exposure compensation.

It may be difficult to get this type of shot anyway as there is a very big range between the shadows and highlights. You may have to sacrifice either end of the spectrum or combine two exposures to get both good shadows and good highlights. You could also minimize the purple fringes in postprocessing, by toning down or changing this color in your editor.

[stopbath]

The purple finging is from huge over exposure in some parts of the image. It can be from over exposed sky, reflections, light sources.... Almost anything.

In digital, the over exposure will often bleed into other pixels resulting in the fringe. You can only stop this by correct exposure (although this could cause underexposure that you could not recover from in the rest of the image). You might be able to limit the fringe a bit by the use of a UV blocking filter.