Meyer-Optik Gorlitz Orestor 100mm F/2.8
Short telephoto prime lens • Film era • Discontinued
Exakta version:
- Announced:
- · 1967
- Production status:
- ● Discontinued
- Country of design:
- · GDR (German Democratic Republic)
- Original name:
- · Meyer-Optik Görlitz Orestor 2.8/100
- Class:
- · Fast full-frame short telephoto prime lens
- System:
- · Contax/Praktica (1949)
- · Exakta (1936)
Model history (2)
| ■Meyer-Optik Gorlitz Orestor 100mm F/2.8 | A | 5 - 4 | 1.10m | ⌀49 | 1967 ● | |
| ■Pentacon 100mm F/2.8 auto / electric | A | 5 - 4 | 1.10m | ⌀49 | 1971 ● | |
Specification
| Optical design: | |
| 35mm full frame | |
| 100mm | |
| F/2.8 | |
| 5 elements in 4 groups | |
| Exakta [44.7mm] | |
| M42 [45.5mm] | |
| 24.4° (35mm full frame) | |
| Diaphragm mechanism: | |
Diaphragm type: | Automatic |
Aperture control: | Aperture ring (Manual settings only) |
| 6 (six) | |
| Focusing: | |
| 1.10m | |
| <No data> | |
Focusing modes: | Manual focus only |
Manual focus control: | Focusing ring |
| Physical characteristics: | |
| 265g (mount not specified) | |
| ⌀?×63.3mm (mount not specified) | |
| Accessories: | |
| Screw-type 49mm | |
| <No data> | |
| <No data> |
Source of data
- Meyer-Optik - Objektive (1967).
From the editor
The lens was produced in two versions:
- "auto" - a lens with plain M42 screw mount with the pin for automatic stop down;
- "electric" - as "auto", but also with electrical contacts for compatible Praktica models.
However, unlike the later Pentacon version, the name of the lens did not contain the words "auto" or "electric".
For the Exakta RTL 1000, the lens was produced in version with automatic diaphragm mechanism with internal release.