R lens image thread.

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GFX50R  + Elmarit-R 180mm v2

 

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GFX50R  + Elmarit-R 180mm v2

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[fernando_b]

90/2.8 2nd version, at f/8, color saturated, TL.

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[Bobitybob]

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M240, Macro Elmar-R 100

[hamey]

From my Garden.

Canon 70D and the 21-35mm VARIO  ELMAR.

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SL + Leitz Telyt-R 250mm f4

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SL + Leitz Telyt-R 250mm f4

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[van_hai]

Leica R8/DMR & Angénieux R35-70mm

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[Keith (M)]

On Morgan's Hill.  M10M, 21-35mm Vario Elmar-R.

 

 

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Edited November 28, 2020 by Keith (M)

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SL + Leitz Telyt-R 250mm f4

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[lawrence_lee]

SL with R24mm

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[lawrence_lee]

Christmas Lights. SL with R 35mmF2.8 Ver III

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[lawrence_lee]

Gingerbread. SL with R35mm F2.8 Ver. lll

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[Keith (M)]

Weekly market - time to pack-up.  35mm Elmarit-R on M10M.

 

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[ramarren]

I've been experimenting with my R lenses on the Hasselblad 907x lately:

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Frond - Santa Clara 2020
Hasselblad 907x + Leitz Elmarit-R 135mm f/2.8
ISO 800 @ f/4 @ 1/100

The Elmarit-R 135mm works very well on the full 33x44mm frame. Just a tiny bit of corner darkening, which cleans up nicely one stop down from wide open. Although I'm enjoying using this focal length on the 907x, it's a bit longer than I think really suits me. The Summicron-R 90mm feels a bit more comfortable, more in tune with my eyes at the present time. The 'Cron-R 90  shows a bit more corner darkening until you stop it down to f/5.6, but otherwise works very nicely as well. 

enjoy! G
 

[wlaidlaw]

7 hours ago, ramarren said:

I've been experimenting with my R lenses on the Hasselblad 907x lately:

The Elmarit-R 135mm works very well on the full 33x44mm frame. Just a tiny bit of corner darkening, which cleans up nicely one stop down from wide open. Although I'm enjoying using this focal length on the 907x, it's a bit longer than I think really suits me. The Summicron-R 90mm feels a bit more comfortable, more in tune with my eyes at the present time. The 'Cron-R 90  shows a bit more corner darkening until you stop it down to f/5.6, but otherwise works very nicely as well. 

enjoy! G
 

I have also seen photos that various people have made using the Hasselblad X series medium format digital with R lenses, with minimal to no vignetting, which demonstrate the large size of the image circle of the R lenses. Do you think this was a deliberate decision by Leica to make an image circle of greater than 21.63mm radius and effectively discard the outer portion of the image circle for use on 35mm film, in order to ensure better performance from what remained? Or are the R lenses just unnecessarily large and heavy? 

Wilson

[masjah]

37 minutes ago, wlaidlaw said:

I have also seen photos that various people have made using the Hasselblad X series medium format digital with R lenses, with minimal to no vignetting, which demonstrate the large size of the image circle of the R lenses. Do you think this was a deliberate decision by Leica to make an image circle of greater than 21.63mm radius and effectively discard the outer portion of the image circle for use on 35mm film, in order to ensure better performance from what remained? Or are the R lenses just unnecessarily large and heavy? 

Wilson

Wilson, that's an interesting observation, and an equally interesting consequential begged question. My own view (for what it's worth) is that Leica had mainly in mind the quality they wanted from their R lenses, and accepted  any design consequences in terms of bulk and weight. A good example is the excellent 28-90 2.8/4.5 R zoom (one of the very last R designs). I've always thought of it as a bit on the bulky and heavy side for what it offers, and always accepted this as the necessary trade-off to get the desired level of image quality. Of course, lenses specifically designed for a digital era also have the opportunity for some optical correction with in-camera processing, which was not available in the film R era. It's also said that R lenses are inherently more telecentric than some other designs, which can't be bad for use with digital sensors.

 

[jankap]

vor 57 Minuten schrieb masjah:

 It's also said that R lenses are inherently more telecentric than some other designs, which can't be bad for use with digital sensors.

The flange dimension of the Leica R is 47mm, of the Canon EF only 44mm.

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[Charles Morgan]

The lenses are certainly large and heavy. My Contax Zeiss lenses are a little more compact and lighter, but the cameras more so. It is not a limiting factor for me but I normally only cart along two lenses at most. My 80mm Summilux is a beast so that tends to be used sparingly.

 

[ramarren]

6 hours ago, wlaidlaw said:

I have also seen photos that various people have made using the Hasselblad X series medium format digital with R lenses, with minimal to no vignetting, which demonstrate the large size of the image circle of the R lenses. Do you think this was a deliberate decision by Leica to make an image circle of greater than 21.63mm radius and effectively discard the outer portion of the image circle for use on 35mm film, in order to ensure better performance from what remained? Or are the R lenses just unnecessarily large and heavy? 

Wilson

Hmm. I'm skeptical. 

Leica R lenses are large and heavy, but I don't think Leica specifically designed them to have an exceptionally large image circle, in general, any more so than most SLR lenses tend to have larger image circles than M lenses do because of the need for a larger flange diameter to eliminate shading/vignetting and optical designs that clear the action of the reflex mirror. 

The evidence isn't there for it: My testing with the range of R lenses I have at my disposal (15, 19, 28, 50 (x2), 60 Macro, 90, 100 Macro, 135, and 180 mm) has so far shown that only the 90mm and up cover substantially more than the 24x36 format; in fact, my Summicron-M 50mm and M-mount Voigtländer Color Skopar 28mm or HyperWide 10mm have greater coverage of the 33x44 coverage than most of the R lenses below 90mm. The shorter R focal lengths (15, 19, 28, 50mm) show a good bit of vignetting/shading, some of it actually shaped internally or via built-in lens hood to reflect internal baffling as a flare reduction mechanism. When I shoot test charts and examine the results at high magnification carefully, it's also obvious that Leica spent quite a lot of effort in tuning the R lenses with the 24x36 mm format in mind specifically ... much outside the 22mm radius of the primary image circle, performance drops off pretty steeply. 

Leica R lenses are large and heavy mostly because I believe Leica wanted them to be exceptionally robust and accurate in keeping the lens elements aligned to ensure the highest quality. It contributes to their longevity too. The large mount diameter reduces shading/vignetting and permits very fast optical designs ... as well as providing a mechanically more rigid and stable lens assembly. 

In most cases, using R lenses on the X body means at least cropping to square (33x33 format) for best quality and elimination of vignetting. It's only with the 90, 135, and 180mm lenses that I can rely upon using the full 33x44 format and get very minimal to no falloff at the corners wide open: with the 90/2, that requires f/5.6, with the 135/2.8, it requires f/4 ... the 180/4 is the only one of my R lenses that does not falloff or vignette wide open. These are also naturally lenses with larger, heavier elements in them that benefit greatly from substantial focusing mount robustness for accurate alignment. So I'd attribute the large image circle more to the optical geometry of the focal length and simple, robust mechanical design than any other intent ... and the large, heavy construction to ensuring highly accurate alignment and durability.

It must also be said that if I need to use an adapted lens, any of the V system lenses I have—from out of my 50, 80, 120 and 150 mm kit—outperform the R lenses pretty handily across the full format. I've been testing using the M and R lenses primarily to see what I might get from the focal lengths I don't have in V lens options, as I plan for my next XCD lens purchase. If along the way I manage to make some nice photographs, well, that's always a plus!  

G

Edited December 1, 2020 by ramarren