Site Title

Compare Zeiss Biogon T* 2.8/21 ZM vs Zeiss Loxia 21mm F2.8 vs Zeiss Biogon T* 2.8/25 ZM

Reviews

Neo score
78%
86%
70%
Pros
  • Great build quality
  • Good image quality
  • Weather-sealed
  • Smooth focus ring
  • Excellent image quality
  • Declickable aperture ring
  • Great build quality
  • Low distortion
Cons
  • Low maximum magnification
  • Some distortion
  • Low maximum magnification

Price

Offers (incl. referral links)

Construction

Colors
Silver or black
Black
Silver or black
Form Factor
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Wide-Angle Prime Lens
Image Size
Full-Frame
Full-Frame
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
Physical aperture ring, Distance scale
Physical aperture ring, Distance scale, DoF scale
Lens Mount
Leica M-mount
Sony E-mount
Leica M-mount
Material
metal barrel, metal mount
Metal
metal barrel, metal mount
Optical Formula | Elements
9 elements
11 elements
9 elements
Optical Formula | Groups
7 groups
9 groups
7 groups

Dimensions

Filter Diameter
46 mm / 1.81 in
52 mm / 2.05 in
46 mm / 1.81 in
Size | Diameter
53 mm / 2.09 in
62 mm / 2.44 in
53 mm / 2.09 in
Size | Length
75 mm / 2.95 in
72 mm / 2.83 in
71 mm / 2.80 in
Weight
280 g / 9.89 oz
394 g / 13.92 oz
260 g / 9.19 oz

Function

Angle Of View
91.7° Diagonal | 81.2° Horizontal | 59.5° Vertical
91.7° Diagonal | 81.2° Horizontal | 59.5° Vertical
81.8° Diagonal | 71.5° Horizontal | 51.3° Vertical
Aperture
f/2.8 ~ f/22
f/2.8 ~ f/22
f/2.8 ~ f/22
Autofocus
No
No
No
Focal Length
21 mm
21 mm
25 mm
Focus Type
Internal
Image Stabilization
No
No
No
Weather Resistance
Yes

Performance

Max Magnification
0.048
0.13
0.056
Min Focus Distance
500 mm / 19.69 in
250 mm / 9.84 in
500 mm / 19.69 in

Production

Debut
2015-10-12
Made In
Japan
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