Canon 1D MkIV purple fringing - PLEASE HELP!!

I've noticed absolutely no problems with my 1D4 + 70-200 2.8II combination in all sorts of lighitng situations (mostly outdoors). Exposures have been REALLY well controlled - PLus I shoot in RAW anyways so any blowouts are easily recovered...

As said before, really sounds like the lens itself

The 35L does it wide open too.

So do the 24, 50 & 135L's.

This is what I expect from the 85 at 1.2. Was this a raw or jpeg. If raw run through with DPP and on the NR/Lens/ALO tag tick the CA and blur buttons and see if this rectifies the problem It works for me.

Dmab wrote in post #10884740
I've noticed absolutely no problems with my 1D4 + 70-200 2.8II combination in all sorts of lighitng situations (mostly outdoors). Exposures have been REALLY well controlled - PLus I shoot in RAW anyways so any blowouts are easily recovered...

As said before, really sounds like the lens itself

You shouldn't have many CA problems with a 2.8 lens.

The 85L gets really a lot better from about 1.6/1.8.

Gel wrote in post #10885422
The 35L does it wide open too.

geno.ca wrote in post #10885600
So do the 24, 50 & 135L's.

What's in common here? Wide open, fast lens, high contrast, oversaturated sensor... I still say sensor blooming / microlens CA is a possible contributor to this.

@jacobsen, no I didn't have the 85L back then. I got it the day after I got my MkIV. Also, what's MA?

MA or MFA=Micro Focus Adjust

Wow. The 85L is known for CA wide open but that has got to be one of the more extreme examples of it that I have seen. As someone else noted this is a lens issue.

K6AZ wrote in post #10904442
Wow. The 85L is known for CA wide open but that has got to be one of the more extreme examples of it that I have seen. As someone else noted this is a lens issue.

hmmm...actually I can reproduce those CA results on occasion with my 85L wide open...think its really a lens issue? I always thought it came with the territory of having a really fast prime. anyone else with 85L care to comment?

btw, my 35L has a little CA also, not as bad though.

@40dbaby, it seems the issue is not really an ISSUE. It's just how the lens gets in high contrast situations when shooting wide-open. Bottom of page 2, there's a shot of a little boy in a tux and you can see some similarly serious fringing in the high-contrast between his black jacket and his white shirt or whatever.