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R lens on an M body.....


Box Brownie

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Hi

 

Spotted a R to M adaptor on the web this afternoon.

 

It got me thinking - R lenses seem fairly unloved and relatively cheap on everyones favourite auction website, so what is involved in using them on an M body?

 

I assume that there must be disadvantages, or more people would be doing it?

 

Thank You.

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Hello:

I have used an "R" to "M" adapter for many years. I have traveled around the world with it several times, and it is a very usable combination for my old 15mm f/3.5 super Elmar and the 19mm and the 21mm.

 

There's no rangefinder coupling, but if you have any experience at all, there is no problem in quite accurately estimating distances. My results are very satisfactory, and I have many thousands of images to prove it. For a viewfinder, I use an old, worn 21 mm finder and then estimate the field. With experience, I have a very high success rate. I have also successfully used the adapter with some long focus lenses at or near infinity.

 

Over many decades I have used all kinds of Leicas, from screw mount to "M" to "R" etc. When you do a lot of photography, estimating distances and area of the field of view becomes almost second nature. Also, many years ago I learned the technique of making a rectangle with the fingers of both hands and by moving it back and forth, it provides a nice, easy way to quickly define the field of view.

 

Best wishes Geolux

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Well, if you are willing to chimp your way to correct focus (advantage of digital over film) then you can use pretty much any focal length you like.

 

Scale focusing for moving subjects with no opportunity to chimp and reshoot - upper limit about 24mm @ f/5.6, just about where Cosina positioned their 25mm f/4 Snapshot Skopar with scale focusing.

 

Downside for superwides otherwise - they are huge, and often not quite as sharp/distortion-free as equivalent focal lengths designed without having to compromise for the SLR mirror. Compare a 21 Super-Angulon f/4 (PLUS adapter) to a 21 f/4 Cosina or even 21 f/2.8 Leica M lens. Especially compare 15mm Super-Elmar (plus adapter) to 15mm C/V Super-Heliar.

 

Upside - they probably won't suffer from the red-edge problems, since the retrofocus design that helps them clear the SLR mirror also puts them comfortably far away from the sensor and inherently makes them more digitally friendly. (EDIT)... But they are also not codable - so may show other weird digital effects that the camera won't correct for.

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The idea of using my 19 R Elmarit on the M8 or 9 is pretty tantalizing, I have to admit. Especially given it's quite sharp even wide open, unlike it's more RF friendly (and slower) CV counterparts.

 

Actually, if their was live-view on the M9 (I know that's heresy) then I could use an 80R lux :) Of course, I'd still prefer a digital R to complement the digital M :)

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Probably this has been said before but according to Stephan Daniel, there will never be a digital R.

 

Leica M9 Stephan Daniel Interview on Vimeo

 

Andreas

 

No, but that doesn't mean there won't be an R-lens-compatible follow on to the R. I believe Leica has also said "they're working on a solution" for R glass users.

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I have used 16 fisheye R and both old and new 19Rs. All worked fine BUT were bulky and on my M8 lost angle so I did not pursue the idea and eventually sold all. Whilst many things are possible whether they work for you will depend on what you are trying to achieve and if you an live with the complications of using them.

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Jan,

 

Thanks.

Using an R lens and the adapter on an M9 with Visoflex III, does that allow for infinity focus?

 

K-H.

No - the Visoflex register is longer than the R register, and the adapter will add extra length too.

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As I own a couple of R lenses (19 II, 24, crons 35/50/90 and 3.4/180 APO) I use the

19 and 24 in combination with the adapter on the M2 and M6 estimating the distance. Beyond 2 mtr is rather problematic. I have the "universal sucher" from the WATE.

I incidentally use the 180 APO at infinity or near infinity as I found out in which part of the 90 mm frame the 180 mm image comes in.

I installed a small mattglass in the film plane and observed the 180 mm image with a magnifier (shutter at B and open)

The results are great.

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I only used the 22228 and viso on the 400mm and 560mm and 1.4x for wildlife shots it works, but a bit of a fire drill. Most of the time the bird would move before I got a shot off. But it was a lot of fun and I would think it would be a better set up on a digital M than my MP.

 

Jan

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