MTO-500
Tele "mirror" Lenses with fixed aperture. "MTO" - an abbreviation from "Maksutov the Tele-Objective" or "Meniscal the Tele-Objective". On the World's fair in Bruxelles 1958 the set of lenses into which entered MTO-500, has been awarded - "Grand prix". In 1959 MTO-500 was awarded the Diploma of II degree VDNH the USSR.
Specification
| Image size | 24x36 mm |
|---|---|
| Focal length | 500 mm |
| 35mm film equivalent focal length for APS-C image size | Approx. 800 |
| Angle of view | 5° |
| Lens construction (elements/groups) | 4/3 |
| Aperture | F8 |
| Closest focusing distance (m) | 4 |
| AF actuator | Mechanical |
| Filter diameter (mm) | 77 |
| Max. diameter x length (mm) | 100x165 |
| Weight (g) | 1500 |