Cosina Cosinon-W 24mm F/2.8 MC
Wide-angle prime lens • Film era • Discontinued
- Announced:
- · 1981
- Production status:
- ● Discontinued
- Country of design:
- · Japan
- Original name:
- · COSINA MC COSINON-W 24MM 1:2.8
- Class:
- · Fast full-frame wide-angle prime lens
- System:
- · Cosina K (1978)
Abbreviations
MC | Multi-layer anti-reflection coating is applied to the surfaces of lens elements. This anti-reflection coating increases light transmission, eliminates flare and ghosting, and maintains color consistence among all lens models. |
Specification
Optical design: | |
35mm full frame | |
24mm | |
F/2.8 | |
7 elements in 7 groups | |
Pentax K [45.5mm] | |
84° (35mm full frame) | |
On Pentax K APS-C [1.53x] cameras: | |
35mm equivalent focal length: | 36.7mm (in terms of field of view) |
35mm equivalent speed: | F/4.3 (in terms of depth of field) |
Diagonal angle of view: | 61° |
Diaphragm mechanism: | |
Diaphragm type: | Automatic |
Aperture control: | Aperture ring (Manual settings only) |
5 (five) | |
Focusing: | |
0.25m | |
<No data> | |
Focusing modes: | Manual focus only |
Manual focus control: | Focusing ring |
Physical characteristics: | |
165g | |
<No data> | |
Accessories: | |
Screw-type 49mm | |
<No data> | |
<No data> |
Source of data
- Manufacturer's technical data.
Other wide-angle prime lenses in the Cosina K system
■Pentax K mount (3) | |||||||||
Cosina Cosinon-W 28mm F/2.8 MC akaBauer Neovaron 28mm F/2.8 Multicoated akaCarl Zeiss Jena 28mm F/2.8 MC akaMiranda 28mm F/2.8 MC akaVivitar Auto 28mm F/2.8 VMC | A | 6 - 6 | 0.30m | ⌀49 | 1981 ● | ||||
Cosina Cosinon-W 28mm F/2 MC akaPetri 28mm F/2 MC | A | 8 - 7 | 0.30m | ⌀49 | 1981 ● | ||||
Cosina Cosinon-W 35mm F/2.8 MC akaPetri 35mm F/2.8 MC akaVivitar Auto 35mm F/2.8 VMC | A | 5 - 5 | 0.40m | ⌀49 | 1981 ● |