The Pentax smc Pentax Takumar 135mm f/2.5 (V2/43812) is a 135 mm prime lens with a maximum aperture of f/2.5 for the M42 mount. Here are its field of view on different sensors, hyperfocal distances and the cameras it fits.
Focal length
135 mm
Max aperture
f/2.5
Mount
M42
Designed for
Full frame
Field of view by sensor
| Sensor | Diagonal angle of view | 35 mm equivalent |
|---|---|---|
| Full frame | 18.2° | 135 mm |
| APS-C (1.5×) | 12.0° | 207 mm |
| Canon APS-C (1.6×) | 11.4° | 216 mm |
| Micro Four Thirds | 9.2° | 270 mm |
Hyperfocal distance
| Focal length | f/2.8 | f/5.6 | f/8 | f/11 | f/16 |
|---|---|---|---|---|---|
| 135 mm | 217 m | 109 m | 76 m | 55 m | 38 m |
Circle of confusion 0.030 mm (sensor size the lens is designed for).
Cameras that fit (2)
Where to buy
B&H PhotoAmazonKEH (used)MPB (used)FAQ
What is the Pentax smc Pentax Takumar 135mm f/2.5 (V2/43812) equivalent to on APS-C?
About 202 mm (1.5×) or 216 mm on Canon APS-C (1.6×).
Which cameras is the Pentax smc Pentax Takumar 135mm f/2.5 (V2/43812) compatible with?
It fits KMZ Zenit 122, KMZ Zenit 412LS (see the full list above).