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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 07 Oct 2015 (Wednesday) 14:02
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Is this amount of CA normal for the 85/1.8?

 
Charlie
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Oct 08, 2015 17:52 as a reply to  @ post 17738056 |  #31

I shoot my zeiss 100 MP wide open all the time, and it has comparable CA, even for a fairly expensive lens :-P

it's only a problem when you've got bright sunlight in the frame. If you're shooting hard sunlight then the CA really shows up, but of course, images are kind of lackluster with harsh light anyway. Control the light and minimize the issue.


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ben805
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Oct 08, 2015 18:07 |  #32

Frodge wrote in post #17738056 (external link)
What use is it wde open if the CA is bad? Not much.

Other than CA, in most cases stopping down the aperture could minimize/eliminate Vignetting, provide better Coma control (for city light, nightscape, astro, etc), higher contrast and sharpness, and most importantly...to gain more DOF. I guess some people only care about blowing out the background shooting a fast prime wide open and completely disregard any other technicality.


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PineBomb
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Oct 08, 2015 18:23 |  #33

ben805 wrote in post #17738105 (external link)
I guess some people only care about blowing out the background shooting a fast prime wide open and completely disregard any other technicality.

That's true. And some people shoot at f/5.6 all the time. And others shoot only family snapshots. Some people only order chocolate chocolate chip for their cones. And some people have never voted in an election. Isn't variety marvelous?


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crbinson
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Oct 08, 2015 20:44 |  #34

I shot my f/2.0 lens at f/5.6 this past weekend...I'm radical!  :p


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fplstudio
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Oct 08, 2015 21:16 |  #35

I personally don't see the point of buying a 85 L II and mostly use at 2.8 when there is a 24-70 that has same cost/quality.

Coming to the original purpose of the topic, yes the 85 1.8 has heavy CA especially WA and in some cases that cannot be corrected in post. To my knowledge the more expensive 85 L has bad CA too and third party 85mm are just sligthly better in this regard. The 1.8 has also more pronounced drop of microcontrast at wide apertures .
Hey, I believe the most can live with that and be more than happy for the $ spent.


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A7R3 | A6300 | MC-11 | FE 16-35 GM | EF 35 1.4 Art | FE 55 1.8 | FE 85 1.8 | EF 70-200 4L IS | FE 100-400 4.5-5.6 GM OSS | E 10-18 4 OSS | E 35 1.8 OSS
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Is this amount of CA normal for the 85/1.8?
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