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MC Mir-20M 20mm f/3.5 lens for Pentax |
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MC Mir-20M 20mm f/3.5 Lens
Description:
MC Mir-20M lens is intended for SLR camera with 24x36mm frame
format and 45.5mm flange/film distance. The lens is fitted with an instant opening
diaphragm. It is equipped with a set of light filters.
MC Mir-20M 20mm f/3.5 Lens Specifications:
| Focal length, mm: |
20
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Relative aperture
- maximum:
- minimum: |
f/3.5
f/16 |
Angular field of view
(across a diagonal of a frame): |
96°
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| Number of elements/groups: |
9/8
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| Minimum taking distance, m: |
0.18
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| Light filters fitting thread: |
M
28x0.75
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| Dimensions (from a base face),
mm: |
D
78x55
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| Weight, kg: |
0.39
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M42 - K mount adapter
This lens mount adapter allows M42 Universal Screw Mount to fit onto a Pentax
K mount adapter. Although the lens will fit physically, automatic diaphragm,
auto-focusing, or any other functions will not operate correctly while using
this adapter. In this case "stop-down mode" will need to be used when metering
since the lens does not have the ability to have its aperture controlled by
the camera body.
M42 - K mount adapter specifications:
| Adapter Type |
M42 Universal Screw Mount to Pentax K Mount adapter |
| Lens Compatibility |
All M42 screw mount lenses |
| Camera compatibility |
Pentax K mount bodies, MF SLRs, such as K1000,
ME super, DSLRs such as *ist DS, and *ist D |
| Focus Range |
Limited |
| Allow Metering |
Stop-down metering, camera dependant |
| TTL flash metering |
Yes |
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