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-1000, has been awarded - "Grand prix".
| Image size | 24x36 mm |
|---|---|
| Focal length | 1000 mm |
| 35mm film equivalent focal length for APS-C image size | Approx. 1600 |
| Angle of view | 2°30' |
| Lens construction (elements/groups) | 5/4 |
| Aperture | F10 |
| Closest focusing distance (m) | 10 |
| AF actuator | Mechanical |
| Filter diameter (mm) | 120 |
| Max. diameter x length (mm) | 158x260 |
| Weight (g) | 3900 |