The
lens produces a sharp image, especially in the central region,
already from aperture 3.5, from aperture 5.6 it is very sharp. The
drop in resolution at the edges of the frame is quite noticeable.
The
Mir-20 20mm f/3.5 has almost no geometrical distortions.
Color
reproduction is bright and saturated. Slightly shifted to the area of
warm tones.
The
Mir-20 lens is perfect for shooting landscapes, interiors,
architecture, genre and reportage.
Fits well on modern digital SLR cameras. When set to hyperfocal
distance, you can forget about autofocus and shoot very
quickly.
Mir-20 20mm f/3.5 lens features
96°
diagonal field of view
Resolution
(0/10/20mm)1): 50/35/30 lines/mm
Specification
resolution (center/edge): 50/20 lines/mm
Light
transmission coefficient: Mir-20M - 0.75; MC Mir-20M - 0.90
Color
formula: Mir-20M - 11-0-2; MC Mir-20M -- 11-0-0
Geometric
Vignetting: 40%
Lens
length with caps: Mir-20M - 68 mm;
The
largest frame diameter: Mir-20M - 92 mm;