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Old 04/07/08, 08:22 PM   #1 (permalink)
el.nino
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Join Date: 07/10/06
Posts: 129
Default am i expecting to much (summicron 50 on mp set to infinity)?

hi,

i have a 50 summicron (the last version without the built in hood) on my mp.
from time to time i recognized photos taken with focus set to infinity look kind of unsharp.

i had it serviced by leica just a few weeks ago because i couldn't focus to infinity - just could not turn the focus ring enough. they changed the focus-gear and two lenses (everything but cheap).

last weekend i took some test-shots because most infinity-photos still looked slightly unsharp.
so i compared the 90 summicron and the 50 summicron.
both were focused on the antenna of the building, but with the 50 summicron i still wasn't able to get the viewfinder-images perfectly covered - no problem with the 90.

below you will find the whole "test-scenery" and the corresponding 100%-crop - starting with the 50 summicron.
both photos were taken with 1/1000 at f5.6. the film was fuji sensia 100.
scanned with a nikon coolscan V at 4000dpi without any corrections. ICE was switched off. no photoshop-corrections at all - just cropping and saving.

thanks for your help
Attached Images
File Type: jpg summicron50.jpg (212.5 KB, 431 views)
File Type: jpg summicron50_crop.jpg (220.0 KB, 425 views)
File Type: jpg summicron90.jpg (195.4 KB, 408 views)
File Type: jpg summicron90_crop.jpg (214.9 KB, 420 views)
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