Asahi Takumar 50mm F/3.5 Type 2
Standard prime lens • Film era • Discontinued
- Announced:
- · 1953
- Production status:
- ● Discontinued
- Country of design:
- · Japan
- Original name:
- · Asahi-Kogaku Takumar 1:3.5 f=50mm
- Class:
- · Slow full-frame standard prime lens
- · Pancake lens
- System:
- · Asahiflex M37 (1952)
Model history (2)
| ■Asahi Takumar 50mm F/3.5 Type 1 • Pancake lens | M | 4 - 3 | 0.75m | A32 | 1952 ● | |
| ■Asahi Takumar 50mm F/3.5 Type 2 • Pancake lens | P | 4 - 3 | 0.75m | A32 | 1953 ● | |
Specification
| Optical design: | |
| 35mm full frame | |
| 50mm | |
| F/3.5 | |
| 4 elements in 3 groups (Tessar) | |
| M37 [45.5mm] | |
| 46.8° (35mm full frame) | |
| Diaphragm mechanism: | |
Diaphragm type: | Preset |
Aperture control: | Preset ring + Aperture ring |
| 12 (twelve) | |
| Focusing: | |
| 0.75m | |
| <No data> | |
Focusing modes: | Manual focus only |
Manual focus control: | Focusing ring |
| Physical characteristics: | |
| 160g | |
| ⌀47×23mm | |
| Accessories: | |
| Slip-on 32mm | |
| Not available | |
| Not available |
Sources of data
- The Ultimate Asahi Pentax Screw Mount Guide 1952-1977 book by Gerjan van Oosten (1999).
- Asahi Flex model II instruction manual.
- How to use Asahiflex model II instruction manual.
Manufacturer description
Standard lens of Tessar type, especially corrected against astigmatism and chromatic aberration. Most suitable for close-ups and reproduction because of the wide angle vision, as well as for scenery, persons, snaps. etc.
From the editor
With chrome finished conical front ring - standard lens for the Asahiflex IA.
With black conical front ring - standard lens for the Asahiflex IIB and IIA.
Other standard prime lenses in the Asahiflex M37 system
| ■M37 mount (2) | |||||||||
| Asahi Takumar 50mm F/3.5 Type 1 • Pancake lens | M | 4 - 3 | 0.75m | A32 | 1952 ● | ||||
| Asahi Takumar 58mm F/2.4 | P | 5 - 3 | 0.61m | ⌀39 | 1954 ● | ||||