What We Like
+Exceptional speed with f/1.2 aperture enables creative depth of field and low-light performance
+Compact, lightweight design (9.4 oz) ideal for rangefinder cameras with minimal vignetting
+Double-sided aspherical elements deliver sharp, contrast-rich images at wide apertures
+Beautiful, smooth bokeh from 10-blade diaphragm and refined optics
+Exceptional build quality with all-metal construction and precise mechanical focusing
+Versatile 40mm focal length between traditional 35mm and 50mm lenses
Worth Knowing
−Pronounced chromatic aberration and purple fringing, especially wide open
−Significant vignetting at f/1.2 that persists even at f/5.6 on bright scenes
−Soft, dreamy rendering wide open (f/1.2-f/2) may disappoint sharpness-focused photographers
−Requires stopping down to f/5.6+ for optimal sharpness and control across the frame