MTO-11SA 1000mm F/10 MC
akaМТО-11СА 1000mm F/10 МС
Super telephoto prime lens • Film era • Discontinued
- Announced:
- · No data
- Production status:
- ● Discontinued
- Country of design:
- · USSR (Union of Soviet Socialist Republics)
- Original name:
- · МС МТО-11СА 10/1000
- Class:
- · Slow full-frame super telephoto prime lens
- · Mirror/Reflex lens
- System:
- · Zenit M42 (1965)
- · Kiev-17/19/20 (1978)
- · Zenit K (1985)
Abbreviations
| MC | Multi-layer anti-reflection coating is applied to the surfaces of lens elements. This anti-reflection coating increases light transmission, eliminates flare and ghosting, and maintains color consistence among all lens models. |
Model history (2)
| ■MTO-11 1000mm F/10 MC [T] akaМТО-11 1000mm F/10 МС | -- | ? - ? | 8.00m | ⌀120 | ● | |
| ■MTO-11SA 1000mm F/10 MC [T] akaМТО-11СА 1000mm F/10 МС | -- | ? - ? | 8.00m | ⌀116 | ● | |
Specification
| Optical design: | |
| 35mm full frame | |
| 1000mm | |
| F/10 | |
| <No data> | |
| Interchangeable mount (T) | |
| 2.5° (35mm full frame) | |
| Diaphragm mechanism: | |
Diaphragm type: | Fixed |
Aperture control: | None |
| Focusing: | |
| 8m | |
| <No data> | |
Focusing modes: | Manual focus only |
Manual focus control: | Focusing ring |
| Physical characteristics: | |
| 1950g | |
| ⌀126×238mm | |
| Accessories: | |
| Screw-type 116mm | |
| Built-in telescopic round | |
| <No data> |
Source of data
- Manufacturer's technical data.
Manufacturer description
The МС МТО-11СА photographic lens is a mirror telephoto lens with multi-layer achromatic coating of optical surfaces, reduced dimensions and weight, designed for "Зенит" SLR cameras.
A large focal length and good image quality make it possible to use the lens for outdoor shooting of distant objects, for photo hunting, etc.
The optical parts of the lens are mounted in a barrel with a thread for attaching the lens to the camera, a distance ring, a distance scale, two sockets with a 3/8 and 1/4" thread for mounting the lens on a tripod.
The lens accepts screw-in filter attachments. When using the lens on cameras with other working distances, adapter rings are used. To reduce weight, the main parts of the lens barrel are made of magnesium alloy.
***
Technical data
Focal length, mm: 1000.
Relative aperture: 1:10.
Angle of view: 2,5.
Working distance, mm: with М42Х1 adapter: 45,5±0,1; with М39X1 adapter: 45,2±0,1.
Light transmission: no less than 0,72.
Resolving power (center/edges), lines/mm: 35/28.
Focusing limits, m: from 8 to INF.
Filter thread: М116х1.
Camera thread: М42х1; М39х1.
Typical characteristics of mirror (reflex) lenses
- Catadioptric system consisting of curved mirrors and optical glass;
- Much shorter, lighter and less expensive designs than conventional super telephoto lenses;
- Outstanding correction of chromatic aberrations;
- Since the aperture is fixed, neutral density filters are used to obtain a smaller aperture;
- Doughnut-shaped out-of-focus highlights.
From the editor
An improved version of the МС МТО-11 with the same optical design but reduced weight and size.
The lens was produced by the Lytkarino Optical Glass Plant (USSR).
The lens was supplied with three 116mm screw-in filters: УФ-1,4х (UV), ЖЗ-8х (Yellow/Green) and О-4х (Orange).
Notes
- "МТО" is an abbreviation for "Максутова ТелеОбъектив", which means "Maksutov's Telephoto lens", or "Менисковый ТелеОбъектив", which means "Meniscus Telephoto lens".
- Dmitry Dmitrievich Maksutov (1896-1964) is a Soviet scientist, optician, corresponding member of the USSR Academy of Sciences (1946). Inventor of the meniscus optical system bearing his name, which is now widely used in telescope construction.
- The lens has an interchangeable mount that is mechanically identical to the T2 interchangeable mount. In the USSR, the following interchangeable mount adapters were produced: "КП-А/42" (T2 - M42x1/45.5), "КП-А/39" (T2 - M39x1/45.2), "КП-А/К" (T2 - Pentax K), "КП-А/Н" (T2 - Nikon F). "КП" is an abbreviation for "Кольцо переходное", which means "Adapter ring".