07-16-2018, 06:19 PM
Found one: Schneider Kreuznach 250/4.5 for Phase One real MF (53.4 × 40.1 mm, 2.5 × bigger than FF): 1600 grams (and the aperture is slower than the f/3.5 (1.4 × 2.5))
Lenstip review of the Sigma A 105mm F1.4 HSM.
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