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FORUMS Sony Cameras, Lenses & Accessories Sony Cameras 
Thread started 23 Jul 2018 (Monday) 05:50
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Top Canon/Sigma Art lenses + Metabones 5 = sharpness loss ?

 
CanonYouCan
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Post edited over 2 years ago by CanonYouCan. (3 edits in all)
     
Jul 23, 2018 05:50 |  #1

Just re-checked with my 50 Art, 85 Art & 70-200 2.8L IS II
Normally wide open they should be tack sharp (like with my Canon 6D).

But now with the A7 III + Metabones 5 (latest firmware) they don't seem to be so sharp wide open.
I took some pics of my wife's face close and further away, but her pupils aren't sharp/full of detail anymore.

I focused with AF-ON centre (single AF) and also tested the Eye-AF in advanced mode on the Metabones 5 adaptor.
Yesterday I saw a video with wide angle lens on youtube that the corners had bad quality.

But this can't be true that the centre with the sharpest lenses isn't sharp anymore ?
Metabones has no glass in it, it would be strange that I can't shoot wide open anymore with those lenses and still keep my maximum sharpness ?

Found it : software problem : all windows photoviewers show the ARW files unsharp (even with Sony's latest raw drivers), in PS/LR they are sharp :)


Sony A7 III | Metabones V | Canon 16-35 F4 L | Sigma 85 1.4 Art | 70-200 2.8L II
Lighting : Godox AD600B TTL + Godox V860II-S + X1T-S
Modifiers: 60cm Collapsible Silver Beautydish + grid | Godox 120cm Octagon softbox + grid + Speedlite Flash bender
Tripod: Vanguard Alta 253CT carbon

  
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Top Canon/Sigma Art lenses + Metabones 5 = sharpness loss ?
FORUMS Sony Cameras, Lenses & Accessories Sony Cameras 
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