EF 85 1.8 Color Fringing Issues?

Totally normal. It's one of the reasons I opted for the Rokinon over it. If you have Adobe Lightroom it's not usually that big of a deal though.

Hey Jarvis, as others have mentioned it's a very quick fix in LR or PS

I've never seen any thing close to that kind of CA with my 85mm.

after looking at those shots, these are my thoughts in no particular order:

OOF images will make CA appear worse

These almost look like more than 100 percent crops, not the best way to judge CA.

a smaller aperture will help dramatically

definitely look into a software fix if you feel you need to shoot with these settings

thats the main reason why i got the 100 f2, would have liked a little shorter lens, but my kids do sports and with less ca, it works out well

hes gone wrote in post #16604259
=he's gone;16604259]I've never seen any thing close to that kind of CA with my 85mm.

after looking at those shots, these are my thoughts in no particular order:

OOF images will make CA appear worse

These almost look like more than 100 percent crops, not the best way to judge CA.

a smaller aperture will help dramatically

definitely look into a software fix if you feel you need to shoot with these settings

I have seen this pixel peeping many times with the 1.8, and even the 1.2 has plenty of it. wide open of course.

i have never seen anything like that on my sigma 85 f1.4, just fyi

Yup, it does that in harsh light, probably the only real downside of that lens.

hes gone wrote in post #16604259
=he's gone;16604259]I've never seen any thing close to that kind of CA with my 85mm.

after looking at those shots, these are my thoughts in no particular order:

OOF images will make CA appear worse

These almost look like more than 100 percent crops, not the best way to judge CA.

a smaller aperture will help dramatically

definitely look into a software fix if you feel you need to shoot with these settings

Thanks for the response. 1)The shot was OOF. It was not a shot I would have used anyway but the fringing did stand out to me. 2)They were actually slightly less than 100% crops. 3) I was shooting wide open at 1.8 so that makes sense. 4) I use PS but it takes awhile to fix and can be annoying. Thanks again!

Jarvis Creative Studios wrote in post #16604854
Thanks for the response. 1)The shot was OOF. It was not a shot I would have used anyway but the fringing did stand out to me. 2)They were actually slightly less than 100% crops. 3) I was shooting wide open at 1.8 so that makes sense. 4) I use PS but it takes awhile to fix and can be annoying. Thanks again!

Photoshop > Filter Menu > Distort > Lens Correction

^^ will fix CA with a few clicks, you just gotta know it's there!

It's even better/easier if you are converting raw files.

I've had the EF 85 1.8 for a couple of years and have had it's 100mm sister for longer. The 85 is my favorite prime for working with people.

The chromatic abberation is only a problem in certain situations. It's kind of interesting how it works. You get green fringing behind the point of focus and purple fringing in front of the point of focus. I believe this is called longitudinal chromatic abberation.

If you focus accurately on your subject there will never be any fringing on that subject.

If the space immediately in front of and behind the subject is air, there won't be any fringing at all. Same with a solid wall behind the subject. You need something like tree branches behind the subject or a fence in front of them to make it show up.

If you stop down one stop, the fringing will be so slight that you won't notice it.

I did quite a bit of testing to figure this out. The 100 F/2.0 has exactly the same characteristics. It is said that their designs are quite similar. They both create great bokeh wide open or one stop down.

Of course your copy may vary and your style of photography may vary from mine.