Overview
Manufacturer
Mount / Sensor Size
Keywords
Model ID
?
Announced
6/2011
Focus
Focal Length
21mm
Autofocus
No
Manual Focus Ring
?
Minimum Focus
0.7 m
Max Magnification
0.03 x
Aperture
Maximum
F3.4 (4 stops from F1.0)
Minimum
F16
Step Size
?
Blades
?
Aperture Ring
Yes
Dimension
Length
43 mm
Diameter
53 mm
Filter Diameter ø
46 mm
Weight
279 g
Hood?
Yes
Tripod Collar?
?
Optics
Elements
8
Groups
7
Description
2 aspheric elements, 4 anomalous partial dispersion glasselements
Links
Price
MSRP
?
eBay
?
Related Lenses
| Name | mmFocal Length | FAperture |
|---|---|---|
 Leica 21mm F1.4 SummiluxLeica M | 21 | F1.4 |
 Leica 21mm F2.8Leica M | 21 | F2.8 |
 Voigtlander 21mm F1.8Leica M | 21 | F1.8 |
 Voigtlander 21mm F4 IILeica M | 21 | F4 |
 Zeiss 21mm F2.8Leica M | 21 | F2.8 |
 Zeiss 21mm F4.5Leica M | 21 | F4.5 |