Sharp, good contrast and fairly light. IF helped by keeping the lens a constant length. Don''t waste money on a poor quality filter. This lens deserves the best.

f4.5 is maximum aperture, but fully useable at this aperture.

My first 300mm lens for my 35mm Minolta SLR system which did not disappoint! Fully useable at full aperture, and worked well with the 300s convertor. Sold reluctantly when I moved to AF.

Customer Service

Not needed

Similar Products Used:

300mm f5.5 Soligor - low contrast. 300mm f4.5 APO Sigma - poor performance unless stopped down to f6.3 or f8. Sigma confirmed that mine was normal for this lens! What happened to the APO? Left in