優點:
It is a true "Standard Lens". I mean that Leica 50mm summicron sets out a standard of how a 50mm lens should be. A simple symmetric 6 elements in 4 groups design exhibits excellent optical performance:- nearly no distortion, natural color, well balance in resolution and contrast. A true general purpose standard lens.
缺點:
Optical performance at wide opening (i.e. aperture F/2) is not up to modern standard of Leica such as 50mm F1.4 ASPH or 75mm F2 ASPH.
評價:
In comparing with Zeiss ZM 50mm F2 and Konica hexanon-M 50mm F2 (they are on par with Leica), my personal opinion is that Zeiss is better in portrait photography because T* renders beautiful color of skin tone and subject more pop up from the backgroup; Konica give vivid color and shaper at wide opening; Leica has better overall balance in various aspects of optical qualities (color, sharpness, distortion, ...etc).