Pentax SMC P-A 645 Macro 120mm F/4
| Availability | ||
Discontinued ![]() |
No | Contribute |
| Year announced | No Data | Contribute |
| General | ||
| Lens Mounts |
|
Contribute |
| Focal Type | Telephoto | Contribute |
| Lens | ||
Focal Length ![]() |
120mm | Contribute |
Angle of View ![]() |
0° - 33° | Contribute |
Max Aperture ![]() |
f/4 | Contribute |
Min Aperture ![]() |
f/32 | Contribute |
Filter Size ![]() |
67mm | Contribute |
| 35mm equivalent | No Data | Contribute |
Internal focusing ![]() |
No Data | Contribute |
| Focusing | ||
| Min Focus | 39cm | Contribute |
| Stabilised | No | Contribute |
Macro ![]() |
Yes | Contribute |
| Construction | ||
| Blades | 0 | Contribute |
| Elements | No Data | Contribute |
| Groups | No Data | Contribute |
| Box Contents | ||
Box Contents ![]() |
No Data | Contribute |
| Dimensions | ||
| Weight | 695g | Contribute |
| Height | 110mm | Contribute |
| Diameter | 78.5mm | Contribute |
| MTF Data | ||
| Effective focal length | 122mm | Contribute |
| Weighted MTF | 120 mm: f4 0.74 | f8 0.80 | Contribute |
| Average Weighted MTF | 0.78 | Contribute |
| Weighted MTF 10 lp/mm | 0.87 | Contribute |
| Weighted MTF 20 lp/mm | 0.74 | Contribute |
| Weighted MTF 40 lp/mm | 0.52 | Contribute |
| Distortion | No Data | Contribute |
| Grade | 3.6 | Contribute |
| Photodo MTF Score | 3.6 | Contribute |
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428 MTF tests
74 in-depth photodo reviews
100+ users join each day
Help the lens community by reviewing or rating a lens today via our lens search
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