[Leica] V2.0 Fitting R lenses on M bodies..... Especially the 3 Cam and ROM versions.

[telyt at earthlink.net (Doug Herr)]

A note about fitting 3-cam lenses to the 22228 adapter: these lenses don?t 
have the raised collar that prevents their use on Leicaflexes or the 22228.  
It?s the 3rd-cam-only lenses that have this collar, and even then they don?t 
always have it.  My 3rd-cam 50 Summicron-R was one example.

Doug Herr
Birdman of Sacramento
http://www.wildlightphoto.com


> On Apr 27, 2021, at 7:38 AM, Frank Filippone via LUG <lug at 
> leica-users.org> wrote:
> 
> A few additional bits of info....
> 
> The Novoflex adapter was/is offered with both NO 6 bit coding and WITH 6 
> bit coding.
> 
> If you are buying this adapter, get the one WITH 6 bit coding. This is the 
> adapter, with code provided, that will bring up the Flex lens list.  The 
> other one will not.
> 
> I have confirmed that the DAG mods to the 22228 REFLEX LENS TO m BODY 
> ADAPTER WORK AND ALLOW THE USE OF ROM LENSES ON THE M BODY.
> 
> The DAG mods do not contain mods for 6 bit coding.  The DAG mods will not 
> bring up the special menu in the M10 to choose which R lens is mounted.  
> (Novoflex or Leica models only will work... or maybe the Chinese cheapo 
> ($20 or so)  adapter will work???I have one on order and will add to this 
> info pool once it has been received and tested. )
> 
> 
> 
> -------- Forwarded Message --------
> Subject:      Fitting R lenses on M bodies..... Especially the 3 Cam and 
> ROM versions.
> Date:         Sun, 4 Apr 2021 17:13:51 -0700
> From:         Frank Filippone <bmwred735i at gmail.com>
> To:   Leica-Users-Group <lug at leica-users.org>
> 
> 
> 
> I am writing this so no one has to do repeat my research.
> 
> The idea is to use Leica R (Leicaflex) lenses on a Leica M body.
> 
> With the advent of an EVF ( sometimes called a Visoflex ) and the digital 
> Leicas ( M240, M10  and later models and variants) it is more practical to 
> use these legacy lenses on a modern body.
> 
> Yes, there is NO electrical connections between lens and body.
> 
> Yes, there is NO MECHANICAL CONNECTIONS.  You pretty much must use the EVF 
> or back LCD or zone focus to get correct focus. Setting the F-Stop is a 
> manual process.
> 
> Yes, there is NO AF.
> 
> So how do you accurately  focus?  Through the camera onto the digital 
> sensor and through the EVF or LCD.
> 
> Now how do you adapt your R lenses to fit on  your M body?
> 
> There are cheap Chinese adapters.  They probably work.  But I have some 
> reservations about ROM lenses.
> 
> There is a Novoflex adapter.  I do not have this adapter to answer the 
> obvious question.  Does this fit 3 Cam and ROM Lenses?......
> 
> There was a Leica 22228 and 22228/500934 adapter that was made for the 
> Leicina movie camera.  This will work with comments and exceptions.
> 
>     All NON ROM lenses, with 1 or 2 cams will fit and work and focus to 
> infinity.  Some lenses will vignette ( or so goes the online info.) Which 
> Lenses?  Mostly the LONG lenses.
> 
>     Why? Because the throat inside the 22228 adapter is not very  large in 
> diameter.  Long lenses will cause vignetting with these lenses as the 
> light rays come in almost parallel to the sensor plane..... And thus, 
> vignette.   The adapter would work
> 
>     fine with the same lenses on a Super 8mm film movie camera because the 
> film is so small.  (roughly 4x6 mm.)
> 
> See this for some additional info:
> 
>      " A note about the Leica #22228 R-M rings: they were all made prior 
> to the introduction of 3rd cam lenses, so they do not work with 3rd-cam 
> only R lenses! The reason? Recent R lenses, because they only have the 3rd 
> cam, have a small collar
> 
>       added to the lens mount ring to prevent you from trying to mount 
> them onto older (1st cam) SL and (1 & 2 cam) SL2 R bodies. The presence of 
> this "collar" unfortunately also prevents you from mounting these lenses 
> onto the #22228 adapter ring
> 
>      as well! The only work-around it to machine a flange into the front 
> of the #22228 lens-mount ring (not too hard or expensive to do)."
> 
>      3 Cam and  ROM lenses will NOT WORK.  They will NOT FIT. No, the ROM 
> is not the problem.  The 3 cam and ROM lenses have a step towards the 
> center of the the mounting ring that prevents these lenses from fitting.
> 
>    You need to have both a ROM lens and a non ROM lens  next to each other 
> to notice this.
> 
> So now what?
> 
> In the supplied description of the problem is part of the solution.... The 
> 22228 adapter can be modified to accept 3 Cam and ROM lenses. Don Goldberg 
> does the mods, and charges a very reasonable $35 fee for the work and 
> return shipping. Today is Spring 2021,  and I have sent my 22228 to him 
> for the mods.
> 
> ( It took me over 2 hours to figure this story out)
> 
> Finally, and made for the job is the adapter called the *R-Adapter M* 
> model # 14642 that was meant for this job, and has a 6 bit code ( BBWBBB ) 
> that brings up a special list of R lenses that will allow you to manually 
> key in the lens for the EXIF file.  It is not terribly expensive, about 
> $450.  It SHOULD take all R lenses.  Any number of Cams, ROM or not.  ( 
> There will be exceptions.)
> 
> This was written for those who ask the question of what works with what, 
> and to save folks the problem of buying the wrong part.
> 
> 
> -- 
> 
> Frank Filippone
> BMWRed735i at gmail.com
> 
> 
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