Author Topic: Can a A77 camera cause chromatic abberations?  (Read 1733 times)

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Offline Fud

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Can a A77 camera cause chromatic abberations?
« on: August 22, 2016, 05:44:25 PM »
Having not done much photography over the last year I have taken a few pictures over the last few weeks and in looking at the results I have been getting purple fringing on some photos.  Normally this is caused by lower quality lenses but I have been getting it across lenses that I have never had it before like the Minolta 600 F4 & Sony 70-400G so I was wondering is it possible that the effect is caused by the camera rather than the lenses possibly by the translucent mirror?
A900+VG, A77+VG, Minolta 17-35G,  Sony CZ24-70 F2.8,Sony 70-200 F2.8 SSM, Sony 70-400 SSM, Sony 135STF,85 F1.4, 200 F4 Macro, 600 F4 HS APO

Offline AScot

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Re: Can a A77 camera cause chromatic abberations?
« Reply #1 on: August 23, 2016, 02:15:53 AM »
Hi Fud. I don't own either of these lenses but I do agree that they do not have a reputation for creating CA, therefore the translucent mirror on the A77 is a reasonable possibility. I own an A77 and I have had CA caused by some lenses, but I know what lenses they are and under what circumstances they cause it. Even my better lenses will occasionally cause CA but generally seen only when I pixel peep. I have never heard anyone complain about CA from the translucent mirror, only from lenses.

The usual definition of Chromatic Aberration is as stated here here.

That said, I hardly think that the very thin and soft mirror on SLTs could could cause CA.  I suppose it could be possible, but very unlikely.
Sony A7, A850, A77, A700 || Sony>> 70-300G, 28-75 f2.8 SAM, 16-80CZ, 50 f1.4, FE 28-70 OSS, FE 24-70CZ f4 OSS, LA-EA4 || Minolta>> 300 f4 G HS, 200 f2.8 G HS, 100 f2.8 (D) Macro, 50 f1.7, 28 f2.8, 28-135 f4-4.5, 70-210 f4, 500 f8 Reflex, TC x 1.4 HS, TC x 2 HS. || Sigma 21-35 f3.5-4.2. || Tamron SP 24-135.

Offline CHOLLY

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Re: Can a A77 camera cause chromatic abberations?
« Reply #2 on: August 23, 2016, 04:15:04 AM »
All the CA I have observed on both my A77 and A77II were caused by specific lenses under specific lighting scenarios.

I have NOT have a CA problem that I could tie back to the camera....
There are people who actually think LENS stabilization is better than sensor shifting!