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

http://www.ussrphoto.com/UserContent/Rubin11M.jpg

http://www.ussrphoto.com/UserContent/Rubin11M.jpg

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



Best regards,
Juhani

<blockquote id="quote"><font size="1" face="MS Trebuchet, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by cedricfan</i>
<br />Works and focuses on M42-cameras, but fixed f:8 aperture. Any idea what on earth is this used for? TV-lens?
<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">
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.

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?
[:p][:D][:o)]

This is all I know at the moment, but let's see next week...
Would fit well my Helios-zoom-collection!

<blockquote id="quote"><font size="1" face="MS Trebuchet, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by Luiz Paracampo</i>
<br />the "M" the standard of M42 from Zenit heritage.
<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">
Nope. Index "M" is a type of a diaphragm mechanism.
See (in Russian):
http://www.zenitcamera.com/qa/qa-indexes.html#m
http://www.zenitcamera.com/qa/qa-diaphragm.html

Zoom
All Zenit "M" lenses I know are M42x1 with pressure pin diaphragm activation. Do you know another?
"K" correspond to K mount and translation pin.
LP

<blockquote id="quote"><font size="1" face="MS Trebuchet, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by Luiz Paracampo</i>
<br />All Zenit "M" lenses I know are M42x1 with pressure pin diaphragm activation.
<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">
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

<font size="1">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...).</font id="size1">
_________________________________________________________
Dimitri: We are saying the same through different languages:

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

<blockquote id="quote"><font size="1" face="MS Trebuchet, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by Luiz Paracampo</i>
<br />We are saying the same through different languages:
Are there Zenit "M" lenses without tread mount?
<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">
No. But "M"-index is not an indication of M42x1 ;)

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

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

<blockquote id="quote"><font size="1" face="MS Trebuchet, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by Luiz Paracampo</i>
<br />Zoom
To clarify everything: -Why there are no "M" lens on M39x1?[?][?]
<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">
Because there were no diaphragm authomatic on that time cameras.

I will have more specs of this lens next week when it arrives, the price was decent enough to buy it.

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?

The promised close up showing filterthreadless front, lenscap groove and short travel focus ring.

http://www.ussrphoto.com/UserContent/Rubin11M_front.JPG

http://www.ussrphoto.com/UserContent/Rubin11M_front.JPG

Juhani
The lens cap is original
Bur do you remember the Vario Zenitar 28-45?
It uses out of standard special filters.
Regards LP

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

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.