Specifications, comparison, reviews,
MTF-charts for lenses by Canon,
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Sigma, Tamron, Carl Zeiss, etc.
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Owner reviews: Carl Zeiss Apo Sonnar 135 mm f/ 2 Z
Extremely sharp with good color & contrast.
One of the best 135mm never build
Buy a second hand.
extremely sharp with good color & contrast
No better lens made at 135mm