Originally Posted by
rawitz
Hi NormaN,
your pictures at 5,5f and 11f is typical for this (kind of) lens. Soft wide open because of spherical aberration (no APO lens) getting better stopping down. Maybe the same effect as a special soft-portrait lens, but not the same construction.
Stopped down to 22f you can use this lens even for 8x10, but clearly detoriating to the corners in sharpness and color fringing.
The compound shutter has continious times, so you can easely recalibrate the shutter times yourself.
regards
Rainer
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