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Rubin-11M PowerZoom-lens 8/60-240mm M42

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04/02/2009 16:47

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quote:
Originally posted by cedricfan

Works and focuses on M42-cameras, but fixed f:8 aperture. Any idea what on earth is this used for? TV-lens?

This is not the Russian production.
China?.. South Korea?.. I don't know.
But looks like an "industrial fake". Why fake? Because "M", but as you saw, it aperture is fixed.

04/02/2009 22:18

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Of course an interesting lens... at least different...
Appears well made and compact. a very good range of demultiplication ..4 X ...
The name "Rubin" picked from the first Soviet photo camera zoom lens
The "11" picked from the most common .. Granit 11...or double 1 from Rubin 1 the "M" the standard of M42 from Zenit heritage.
The diaphragm never fails once does not need any coupling to the camera...... The power Zoom also is infallible ...and wastes no batteries.. Perrfectly ecological for those days... once you do the power on your hands.....Any details on Construction?.. Quality?
TongueBig smileClown

04/07/2009 09:02

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quote:
Originally posted by Luiz Paracampo

All Zenit "M" lenses I know are M42x1 with pressure pin diaphragm activation.

Yes. But "M" is an indication of this diaphragm type, not to a thread.
Only the "2" index is correspond to the M42x1 thread mount directly (for example: "Helios-40-2").
"K", "B" ("Á"), "V" ("Â") and "N" ("Í") -- to the bayonet mounts.
"A" -- is the "adapter type mount" (usually to: M39x1/45.2 and M42x1/45.5)
"C" or "Ts" ("Ö") -- with the central shutter (ZENIT-4, -5, -6...).

All this descriptions are there:
http://www.zenitcamera.com/qa/qa-indexes.html

04/07/2009 19:37

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Yes. But "M" is an indication of this diaphragm type, not to a thread.
Only the "2" index is correspond to the M42x1 thread mount directly (for example: "Helios-40-2").
"K", "B" ("Á"), "V" ("Â") and "N" ("Í") -- to the bayonet mounts.
"A" -- is the "adapter type mount" (usually to: M39x1/45.2 and M42x1/45.5)
"C" or "Ts" ("Ö") -- with the central shutter (ZENIT-4, -5, -6...).
_________________________________________________________
Dimitri: We are saying the same through different languages:

--"M" is an indication of this diaphragm type _Are there Zenit "M" lenses without tread mount? -
--"2" -No discussion.
--"K", "B" ("Á"), "V" ("Â") and "N" ("Í")- OK but "B" ("Á"), "V" ("Â") are for 6X6 cameras-
--"A" - Also includes "K" and and "N" ("Í")adapters
--("Ö") - Are completely different mount system.Diaphragm and depth of field scales on camera body.
Regards LP

04/08/2009 08:05

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quote:
Originally posted by Luiz Paracampo

We are saying the same through different languages:
Are there Zenit "M" lenses without tread mount?

No. But "M"-index is not an indication of M42x1 ;)

I like a clarity, certainty and exactitude, and a theory of sets. ;)

04/13/2009 07:05

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quote:
Originally posted by Luiz Paracampo

Zoom
To clarify everything: -Why there are no "M" lens on M39x1?QuestionQuestion

Because there were no diaphragm authomatic on that time cameras.

04/17/2009 08:36

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Lens is now at home, and now I am really puzzled!

First of all, it looks really odd, not like the cheap chinese & korean do with fancy text and many colours in engravings. This is very dull, like for some special work.
The front ring has no text at all, and no filter thread. It does have that assembly ring, so filter thread is only left out.
The lens cap has KMZ-logo. You say it can be from any lens. But this is the odd middle size: not for 52mm nor 49mm filter sized lenses, but in between! And fits perfectly. So no usual cap fits this lens...
The lens is all metal, and heavy! No signs of plastic nor rubber, even focus & zoom rings are knurled in metal!
And it is very thin, making it again odd, not something that would sell well.
Zoom is internal, no effect on lens lenght or rear element placing. Not a cheap construction if I am correct.
Focus ring "INF." and only 90 degrees to 1,2 meters, very fast action.
No serial, no country, and the aperture is fixed 8. All text is also in picture (but closest focys 1,5)

I will take more pics when I arrive from Tallinn, but now I would say this is for some special use, like TV?

04/22/2009 02:50

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My Variozenitar 25-45 has a standard 58mm filter ring, serial 020082

Samsung GX-10,too many Russian Lenses, A lot of Zenit, some Yashica,and a Pentax Body also finally a Minox35GT

04/22/2009 03:15

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This lens has no possibility to mount filters in the camera end, the rear element is approx where the RUBIN-11M text is, and there is only hollow tube inside mount. But if this is a movie/TV lens then it would not need the thread as filters are mounted in those large hoods. And the very small change in lens total lenght during focus would be no problem either.
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