Posted: Thu Jul 25, 2013 12:34 am Post subject: |
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luisalegria wrote:
I always thought the best test of a wide angle lens was at infinity.
Especially in the corners.
Thats where the quality differences seem to show.
Bad infinity setting is very common. It may be the reason some lenses seem bad, when they may not be.
Some lenses are easily adjusted, some not.
Just today I found that a 400mm lens I just got doesn't get to infinity. I fixed this, temporarily, by removing the T-mount and partly screwing it right into my M42 adapter (not tightly). Instant fix. I will have to play with the focus sleeve adjustment for a permanent fix though. _________________ I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work. |