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Articles Table of Contents   Page 1: Lenses for Leica M8, M9, M* Page 2: Leica and Zeiss Lens Nomenclature Page 3: General Considerations in Choosing a Lens Page 4: Choosing Lens Focal Length Page 5: Reader Feedback on Leica M Page 6: Ray Angle and Off-center Color Shift Page 7: The Match Technical Coder Kit Page 8: Leica 18mm f/3.8 Super-Elmar-M ASPH Page 9: Leica 21mm f/1.4 Summilux-M ASPH Page 10: Leica 24mm f/1.4 Summilux-M ASPH Page 11: Leica 24mm f/2.8 Elmarit-M ASPH Page 12: Leica 28mm f/2 Summicron-M ASPH Page 13: Leica 35mm f/1.4 Summilux-M ASPH 2010 Page 14: Leica 35mm f/2 Summicron-M ASPH Page 15: Leica Noctilux-M 50mm f/0.95 ASPH Page 16: Leica 75mm f/2 APO-Summicron-M ASPH Page 17: Zeiss ZM 15mm f/2.8 Distagon T* Page 18: Zeiss ZM 18mm f/4 Distagon T* Page 19: Zeiss ZM 21mm f/2.8 Biogon T* Page 20: Zeiss ZM 21mm f/4.5 C-Biogon T* Page 21: Zeiss ZM 25mm f/2.8 Biogon T* Page 22: Zeiss ZM 28mm f/2.8 Biogon T* Page 23: Zeiss ZM 35mm f/2 Biogon T* Page 24: Zeiss ZM 35mm f/2.8 C-Biogon T* Page 25: Zeiss ZM 50mm f/1.5 C-Sonnar T* Page 26: Zeiss ZM 50mm f/2 Planar T* Page 27: Zeiss ZM 85mm f/2 Sonnar T* Page 28: Zeiss ZM 85mm f/4 Tele-Tessar T*

Zeiss ZM 35mm f/2.8 C-Biogon T*

The Zeiss ZM 35mm f/2.8 C-Biogon (about $817) is a very compact 35mm lens, an alternative to the 35mm f/2 Biogon. It offers outstanding value without compromising performance.

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Image quality

Not yet tested.

MTF charts suggest that this lens offers excellent performance even wide open, with minimal field curvature and outstanding contrast and sharpness by f/5.6.

Specifications

Per Zeiss. See the datasheet.

Zeiss ZM 35mm f/2.8 C-Biogon

Focal length:	35mm
Aperture scale:	f/2.8 - f/22
Focusing range:	0.7m - infinity
Angular field, diag./horiz./vert	62/53/37 °
Coverage at close range:	41 cm x 62 cm
Image ratio at close range:	1:17
Number of elements/groups:	7 elements in 7 groups
Filter thread:	M 43 x 0.75
Weight:	200g
Dimensions (with caps):	ø 52 mm, length 55 mm

Distortion

The pincushion distortion of the 35mm f/2.8 Biogon is only about 1% by the far corners, excellent for a 28mm lens.

Conclusions

Not yet tested.

Learning more

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