Can you identify this huge lens??
- Thread starter TennesseJones
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crosseyed-cricket
Established
It is at least a mirror-lens...not specifically for astrophotography, although it is a similar design to a Schmitt-Cassegrain (SCT) telescope.
Primarily for a long focal length in a small package. Fixed aperture...and may have a filter-drawer and a t-threaded back.
The disadvantage of these is that the bokeh is a bit messy with donut shapes (caused by the central obstruction).
Primarily for a long focal length in a small package. Fixed aperture...and may have a filter-drawer and a t-threaded back.
The disadvantage of these is that the bokeh is a bit messy with donut shapes (caused by the central obstruction).
nhchen
Nathan
Its a MTO-1000a lens. Apparently 1100mm f10.5. Probably in m42 mount. I've got an older mto 500 in m39 mount that I've attached to the little original zenit . Regards Nathan
ferider
Veteran
From http://top35mm.com/MTO-1000A-10-5-1100-mirror-meniscus-russian-lens-for-Nikon#sthash.CHPzrGTR.dpuf
MTO-1000A 10,5/1100: Telephoto mirror lens with a constant aperture. The name "MTO" - an abbreviation of "Maksutov Tele-lens" or "Tele-lens meniscus." The MTO-1000A is a classic sample of Soviet-era engineering and workmanship. It is a 1100 mm telephoto mirror lens based on the design of a known Soviet engineer Maksutov. Has a built-in sliding lens hood. Important note: because the lens has a huge overrun at infinity, it can be put on any sort of camera.
Mount - M42
Angle of view - 2° 30'
Focal Length - 1100 mm (1084 mm)
Constant aperture - 1:10,5
Frame size - 24x36 mm,
Number of lenses / groups - 5 / 4
Weight - 3,6 kg
Working distance - 45.2 mm
Overall dimensions - d138x278 mm
Closest focusing distance - 10 m
Resolution (center / edge) - 28 / 16 lines / mm
MTO-1000A 10,5/1100: Telephoto mirror lens with a constant aperture. The name "MTO" - an abbreviation of "Maksutov Tele-lens" or "Tele-lens meniscus." The MTO-1000A is a classic sample of Soviet-era engineering and workmanship. It is a 1100 mm telephoto mirror lens based on the design of a known Soviet engineer Maksutov. Has a built-in sliding lens hood. Important note: because the lens has a huge overrun at infinity, it can be put on any sort of camera.
Mount - M42
Angle of view - 2° 30'
Focal Length - 1100 mm (1084 mm)
Constant aperture - 1:10,5
Frame size - 24x36 mm,
Number of lenses / groups - 5 / 4
Weight - 3,6 kg
Working distance - 45.2 mm
Overall dimensions - d138x278 mm
Closest focusing distance - 10 m
Resolution (center / edge) - 28 / 16 lines / mm
TennesseJones
Well-known
Wow.
Thank you everyone!
So it can be used on Nikon or Leica digital with an adaptor....
Thank you everyone!
So it can be used on Nikon or Leica digital with an adaptor....
Moto-Uno
Moto-Uno
Can't wait to see your hand held shots 😀😀
Peter
Peter
As I recall, the Russians were the first to market with the Maksutov an affordable lens of this type, through Spiratone... prominent NYC mail-order outfit of the 1960s and after with multi-page ads in the photo magazines.
uhoh7
Veteran
I already have way too many 1100s....
but I'd be interested in an 1100/2 🙂
but I'd be interested in an 1100/2 🙂
