With the CV 20/2.8 on, I need to see if my Nikon 20/2.8 NAiS is any better. ( Maybe I should have held on to the Nikon 20/3.5 which I sold last year, which, according to Bjorn Rorslett, is \"faultless\" for IR. However the corners, at least on the A7, were very poor, FAR worse than the CV.)
I\'ve lightened the area to highlight the \"rainbow\" of concentric rings flare It\'s so \"bad\" as to be almost \"good\"!
Yes,it\'s definitely the CV 20/3.5
I\'m rather annoyed, as I used it a lot on my IR A7, on a recent holiday, having seen it was rated as \"Good for IR\" on \"some-one\'s\" hot-spot lens list, (can\'t remember where). Stupidly I didn\'t do any checks first. (It\'s not visible on the camera monitor) I think I stopped well down to 11-16, as corners are then so much better. That\'s probabl
y the problem, it may well not be an issue at 8 or 8-11, where I uisually shoot. More testing!
Thankfully it isn\'t this obvious on every shot.
I think I had the CV 20/2.8 on, (the only other lens with was the OM Z 35/2.8, and that wouldn\'t have been wide enough. (One of my main beefs with the A7 after the 5DII, is not being able to identify lenses in exif) I\'m fairly certain that it is the CV from the corner smearing. I need to see if my Nikon 20/2.8 NAiS is any better. ( Maybe I should have held on to the Nikon 20/3.5 which I sold last year, which, according to Bjorn Rorslett, is \"faultless\" for IR. However the corners, at least on the A7, were very poor, FAR worse than the CV.)
I\'ve lightened the area to highlight the \"rainbow\" of concentric rings flare It\'s so \"bad\" as to be almost \"good\"!
Yes,it\'s definitely the CV 20/3.5
I\'m rather annoyed, as I used it a lot on my IR A7, on a recent holiday, having seen it was rated as \"Good for IR\" on \"some-one\'s\" hot-spot lens list, (can\'t remember where). Stupidly I didn\'t do any checks first. (It\'s not visible on the camera monitor)
Thankfully it isn\'t this obvious on every shot.
Jun 24, 2016 at 11:28 AM
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