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TTArtisan 21mm f/1.5 vs Zeiss Biogon T* 21mm f/2.8 ZM

Both are Leica M prime lenses. Here is what actually differs.

Pick the TTArtisan 21mm f/1.5 if

  • You need 1⅔ stops more light for low light or background blur (f/1.5 vs f/2.8)

Pick the Zeiss Biogon T* 21mm f/2.8 ZM if

  • You want the lighter lens to carry: 132 g lighter (280 g vs 412 g)
  • You shoot full frame: the TTArtisan 21mm f/1.5 is made for APS-C

Spec differences

10 differences
Specifications that differ between the TTArtisan 21mm f/1.5 and the Zeiss Biogon T* 21mm f/2.8 ZM
TTArtisan 21mm f/1.5 Zeiss Biogon T* 21mm f/2.8 ZM
Brand
TTArtisan
Zeiss
Format
APS-C
Full frame
Max aperture
f/1.5 1⅔ stops faster
f/2.8
Weight
412 g
280 g lighter
Length
not listed
64 mm
Filter thread
72 mm
46 mm
Min focus distance
not listed
0.5 m
Max magnification
not listed
0.05×
Aperture blades
10
not listed
Optical design
13 elements / 11 groups
9 elements / 7 groups
5 identical specs hidden: mount, type, focal length, autofocus motor, image stabilization. Show all
Mount
Leica M both
Type
Prime both
Focal length
21mm both
Autofocus motor
Manual focus both
Image stabilization
No both

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