Yesterday I posted 2 unsharp
5X7 neg scans Here
My question is, how can we quickly test a used lens for sharpness?
I may not be able to literally see the problem, with my vision on a GG, even with a 9X loupe
I was and am aware of how unsharp the 2 images are. I processed both with 4 other 5X7 negs shot with a SF lens. Those cannot be posted. They are far sharper.
As I 'see' it, 3 primary variables are GG T, alignment of standards and the lens
All my lenses are second hand 'bargains' some bought here but most from a 1960's estate
Not trying to assign blame
A thought and caution to others, it was common for Pros to test any lens with a few iterations and return the chaff
Buy beware
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