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Adapter for mounting viso lens to M (typ 240)


George Furst

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There are many ways to mount your viso lens on the new M and appreciate their unique vision of the world. My favorate is the Hektor 125mm f2.5. I have found that the best adapter to mount these longer focal length viso lens on the M (typ 240) is the TXBOO adapter. It was originally used when you wanted to mount a long Viso Telephoto lens with approptiate viewfinder on the M2 or M3 camera without the visoflex. Therefor one end has the screw mount for the viso lens and the other has the M mount. Of course there is no coding but it does not bring up the dreaded "no lens attached" but the automatic on the lens detection menu. Then I change it to 'manual' and set the lens for 135 f4 11851/11861 lens. I have found this with the live view option to work very well for dreamy portriature.

 

This lens has a interesting history and came close to never existing as a viso lens. Walther Benser gave lectures on Leica cameras with projection of slides before WWII. He used this lens on his projector. Then he was inducted into the German army, ended up as a photographer and was deep in the Caucasus when the Russians won the battle of Stalingrad. This meant that the Caucasus had to be evacuated by the German army. Walther was almost captured but made it out to Rostov. If captured this lens would never exist because he convenced Ernist Leitz II to make the lens for the visoflex system.

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While the TXBOO enables the direct attachment of screwmount Viso I lenses on the M-cameras, Novoflex sell an adapter which enables direct attachment of bayonet Viso II/IIa/III lenses on the M-cameras. The Novoflex adapter seems well made, although there are certain lenses/mounts (e.g. 16462) which won't quite work as the diameter of the lens flange is a couple of millimeters larger than that of a Visoflex. I contacted Novoflex and they acknowledged the problem. However, it works nicely with lenses in the OTZFO/16464 mount (65/4, 90/2.8, 135/4), 280/4 Telyt (11914), Televit-V lenses, 400/500 Telyts (trombone style), focorapid if you have one, and of course the Viso I lenses via the OUIBO (in the event that you can't find a TXBOO). The Novoflex Viso/M adapter is uncoded.

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I had Amedeo Muscelli make me a 41mm M to M extension tube to use my various Viso lenses on the M240. Not sadly one of his better efforts and although it looks lovely, the male bayonet is slightly too loose and the female slightly too tight. I was going to order a short run of these and sell them at cost to forum members but the QC was not good enough.

 

I put the adapter away somewhere 6 months ago and now cannot even find where I put it (I may have left it down at my French house in error). I don’t really miss it, as I have a Novoflex bellows. I could have actually done with it last week as I wanted to focus the 135 Tele-Elmar head even closer than I could with the Novoflex bellows and a LEIEL adapter on the bellows.

 

However, since I have replaced for most uses, my Viso lenses with modern Zeiss Contax lenses, which outperform to various degrees all my Viso lenses, I will probably include the adapter with my 400/560mm Telyt/Televit/shoulder stock and Visoflex III kit when I get round to selling all that.

 

Wilson

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Does the Novoflex bellows not cover the lens release button like the Leica bellows does.

Alwyn

 

Alwyn,

 

No - not a problem. Downside is that the bellows is LTM/LTM, which limits what you can fit on the front. The upside is that there are plenty LTM high quality enlarger lenses around (Schneider, Rodenstock, Rollei, etc), which make good macro lenses at now silly prices. I bought a pair(a 50mm Rolleinar and a 75mm Schneider Componar for around £5 for the pair, a couple of years ago).

 

Wilson

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There is an new Novoflex Adapter called Lem/Vis. This should work!

 

And that is the adapter referred to in post #2 above. Thank-you for providing the Novoflex product name: LEM/VIS

 

It is exactly a 41mm M-bayonet extension tube, such as wlaidlaw describes in post #3.

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