caissa Posted November 8, 2016 Share #81 Posted November 8, 2016 (edited) Advertisement (gone after registration) Regarding the (automatic) corrections for the ROM-equipped R zoom lenses: What exactly did you see ? How did you check that it worked with the 21-35, but not with the 35-70 Macro built by Kyocera ? Leicaiste said it works with the 35-70 - so it seems not so obvious to see it. How can I check it "exactly" ? I have the R 80-200 and would like to check it - but have no adapter. Maybe when visiting a Leica-shop I can do a few test shots with my lens and this adapter... I assume it is only visible in the DNG files ? (Correct ?) How do I have to proceed to find out ? Edited November 8, 2016 by caissa Link to post Share on other sites More sharing options...
Advertisement Posted November 8, 2016 Posted November 8, 2016 Hi caissa, Take a look here Leica R-Adapter L available. I'm sure you'll find what you were looking for!
Leicaiste Posted November 8, 2016 Share #82 Posted November 8, 2016 How did you check that it worked with the 21-35, but not with the 35-70 Macro built by Kyocera ? Leicaiste said it works with the 35-70 - so it seems not so obvious to see it. How can I check it "exactly" ? I tested the 35-70/2,8. Link to post Share on other sites More sharing options...
scott kirkpatrick Posted November 8, 2016 Share #83 Posted November 8, 2016 Leicaiste is referring to the legendary 35-70/2.8-asph, of which only 200 were made from 1998 to 2002. Thorsten Overgaard wrote an article about his experience with it, but unfortunately he had to give his back. I have the 35-70/4 (with macro) made with Kyocera from 1997 to 2009. There was also a 35-70/3.5-4.0 made with Minolta and available from 1983 to 1996. All of these will work with the new adapter, and the later two have ROM contacts. The 35-70 is small, convenient and does a nice job but doesn't compare to the best R-prime lenses available during the R8-9 period. The 21-35 is small and convenient and does measure up to all but the latest aspherically-augmented FLE M lenses. I don't know about the 28-90/2.8-4.5, for which the technical specs seem only OK, but it is also highly regarded. All of these lenses report the focal length currently in use to the SL so that it will appear in the EXIF and can affect the minimum shutter speed used in the AUTO-ISO algorithm. I have two ways to see if there are distortion corrections calculated for the actual focal length in use and stored in the DNG files as WarpRectilear coefficients. Essentially these are coefficients that let a program create the distortion curves that used to appear in the technical specifications, and undo them. I use Capture One to develop the raw files from several different cameras. In each case, going to the lens profile page, starting the crop tool and unchecking "hide distorted region", I see black edges around the frame if there is distortion to be corrected. I also see a slider set at 100%, which I can change if I wish to override the distortion parameters. Sometimes there is no black edge and the slider comes up at 0%, which indicates that the distortion parameters, if present, predict no distortion. So I can see corrections indicated for the 21-35, strongest at 21, decreasing as focal length increases, but still visible at 35mm. I don't see any corrections for the 35-70/4. Using Capture One this way to detect distortion corrections also works with files in proprietary formats like ORF or RAF or... If I also want to know how much correction is used and whether it is different for the different colors, as is the case when correcting lateral chromatic aberrations (LCA), there is a tool in the Adobe SDK that will extract these parameters (as well as a huge amount of other stuff that I ignore). That only works with standard formats like DNG or TIFF. scott 2 Link to post Share on other sites More sharing options...
gvaliquette Posted November 10, 2016 Share #84 Posted November 10, 2016 Scott, Leica's own data sheets show some distortion in the 35-70 Vario-Elmar R. Admittedly not much, 2.8% at 35 and 0.7% at 70, both barrel, but it is there. Perhaps the 35-70 zoom, being early in the implementation of the ROM experience, did not report the distortion by focal length. The 21-35 zoom, again according to the data sheets, shows 3.5% at 21 and 1.3% at 35, both barrel. By the way, what is the tool you mention and is it available without the SDK? Thanks. Guy Link to post Share on other sites More sharing options...
scott kirkpatrick Posted November 10, 2016 Share #85 Posted November 10, 2016 (edited) The 35-70 mm reports its current focal length, but Leica doesn't compute the corrections (that is done inside the camera) and store them in the DNG file. It's not done by the lens because for a film R Leica, there would have been no need for it. I suspect the reason it isn't supported is because it was not a Leica design, and they don't have as much data on its characteristics. Although they do publish a distortion curve at several focal lengths. The Adobe DNG reader is downloadable apart from the rest of the SDK. You can see what its output looks like in this context in the ChromaSoft blog of late last year. There was a discussion there of precisely how the Leica SL 24-90 corrects things. scott Edited November 10, 2016 by scott kirkpatrick 2 Link to post Share on other sites More sharing options...
John Black Posted November 12, 2016 Share #86 Posted November 12, 2016 Has anybody tried the 105-280mm on the SL with the Leica R adapter? I get some mechanical vignetting when stacking the Leica TL/M + Leica M/R adapters. The 105-280mm performs nicely on otherwise, but vignetting requires a moderate crop (probably losing around 6 MP). Link to post Share on other sites More sharing options...
yst Posted November 19, 2016 Share #87 Posted November 19, 2016 Advertisement (gone after registration) Would anyone used or tried the Leica 70-180 f2.8 APO with the SL? What would be the experience and results or easy use? Link to post Share on other sites More sharing options...
Guest VVJ Posted December 29, 2016 Share #88 Posted December 29, 2016 Adding that through the latest firmware 1.6 the R-Adapter L now also is supported on the Leica T (and TL): http://www.reddotforum.com/content/2016/12/leica-releases-firmware-ver-1-6-for-t-typ-701/ Link to post Share on other sites More sharing options...
erudolph Posted December 30, 2016 Share #89 Posted December 30, 2016 (edited) I've had the R-L adapter for almost a week and used it with various lenses. I'm pleased to have it. It holds the lenses more tightly than did the R-M/M-T combo. Also, the reporting of exact focal length makes it easier to use some of the Lightroom lens corrections, if so desired. These corrections must be selected manually and are not baked into the .dng files as are corrections for most M lenses. One point worth noting: leaving the adapter in place, when changing lenses, the adapter does not always sense the lens that has just been attached. E.g., after using a 100mm Apo-Elmarit-R/2.8, I switched to the 60mm Elmarit. In Lightroom, the 60mm was reported to be a 105-280 at a focal length of 0 mm. Again, after using the 100mm and switching to the 80-200, the lens was reported to be still the 100mm, but with a focal length of 0mm. However, after loosening the adapter and resecuring it, the 80-200 was immediately recognized. This was not the case with the 60mm; it seems not to be recognized by the adapter. (Fwiw, my 80-200 seems to have an actual focal length range of 85-179mm.) Edited December 30, 2016 by erudolph 1 Link to post Share on other sites More sharing options...
Guest VVJ Posted December 30, 2016 Share #90 Posted December 30, 2016 This was not the case with the 60mm; it seems not to be recognized by the adapter. It is on the list of 43 supported lenses. Are you saying it is not being recognized at all? Link to post Share on other sites More sharing options...
ramarren Posted December 30, 2016 Share #91 Posted December 30, 2016 It is on the list of 43 supported lenses. Are you saying it is not being recognized at all? Is the Macro-Elmarit-R 60mm a ROM model? Where can I find the list of 43 supported lenses? thx! Link to post Share on other sites More sharing options...
Guest VVJ Posted December 30, 2016 Share #92 Posted December 30, 2016 Is the Macro-Elmarit-R 60mm a ROM model? Where can I find the list of 43 supported lenses? thx! I saw them listed on the website of Leica Store Miami in the product description: http://leicastoremiami.com/collections/tl-system-camera-accessories/products/leica-r-adapter-l Link to post Share on other sites More sharing options...
jpattison Posted December 30, 2016 Share #93 Posted December 30, 2016 When I borrowed the adapter for a day, I found the non ROM lenses were shown correctly in LR after selecting them from the R list in the SL. It seems the adapter does tell the camera that R lenses are attached, but passes ROM data if available, which overrides the manually selected lens. I still haven't bought one yet, trying to sell my R -M adapter first. John Link to post Share on other sites More sharing options...
jpattison Posted December 30, 2016 Share #94 Posted December 30, 2016 (edited) Is the Macro-Elmarit-R 60mm a ROM model? Where can I find the list of 43 supported lenses? thx! Originally 2cam and then 3 cam, and R only; I believe these can be converted... but it seems some were made ROM - Lens mount - LEICA R-bayonet for LEICA R3 to LEICA R9 with mechanical, and, for LEICA R8/R9, additional electronic exposure control and the Wiki shows "600(ROM) on the street" whatever that means! http://www.l-camera-forum.com/leica-wiki.en/index.php/60mm_f/2.8_Macro-Elmarit-R John. Edited December 30, 2016 by jpattison Link to post Share on other sites More sharing options...
ramarren Posted December 31, 2016 Share #95 Posted December 31, 2016 Originally 2cam and then 3 cam, and R only; I believe these can be converted... but it seems some were made ROM - Lens mount - LEICA R-bayonet for LEICA R3 to LEICA R9 with mechanical, and, for LEICA R8/R9, additional electronic exposure control and the Wiki shows "600(ROM) on the street" whatever that means! http://www.l-camera-forum.com/leica-wiki.en/index.php/60mm_f/2.8_Macro-Elmarit-R John. The critical thing is that if the R lens you've fitted to the adapter is not equipped with a ROM, you have to set the lens profile. If you are using a ROM lens, the lens profile should be automatically assigned by the SL. I have the R-lens profile menu in the SL edited down to just the lenses I own so that I can pick the correct profile more rapidly. So if your Macro-Elmarit-R 60mm has not been equipped with a ROM, set the lens profile after mounting on the the adapter. Then the correct lens name and profile will appear in Lightroom when you look at the EXIF data. (As far as I'm aware, Leica can no longer update lenses to ROM specification ... they've run out of parts. I could be wrong on that.) 1 Link to post Share on other sites More sharing options...
ramarren Posted December 31, 2016 Share #96 Posted December 31, 2016 I saw them listed on the website of Leica Store Miami in the product description: http://leicastoremiami.com/collections/tl-system-camera-accessories/products/leica-r-adapter-l Okay: that confirms what I've been saying. Three-cam, R-only, or ROM lenses are compatible with the adapter; one-cam and two-cam are not. Compatible doesn't mean that the adapter can determine what lens is fitted if the lens doesn't have a ROM, it just means the lens will mount properly and not damage the electronic contacts in the ROM reader. The lens profile is set manually for non-ROM lenses. Link to post Share on other sites More sharing options...
erudolph Posted December 31, 2016 Share #97 Posted December 31, 2016 Thanks Godfrey, I had forgotten about the lens profile selector since when first mounting the 28-90 it was greyed out. But of course, I was able to select the 60mm Elmarit-R in it. Link to post Share on other sites More sharing options...
jpattison Posted January 2, 2017 Share #98 Posted January 2, 2017 (edited) The R Apo-Extender 2X ROM doesn't transmit the resulting focal length or the resulting aperture, is showing 0mm in review mode The R Macro-Adapter ROM doesn't transmit the focal length, is showing 0mm in review mode Which firmware version did you test this on? Have you (or anyone else) tried again with the latest? Thanks, John Edited January 2, 2017 by jpattison Link to post Share on other sites More sharing options...
erudolph Posted January 2, 2017 Share #99 Posted January 2, 2017 Which firmware version did you test this on? Have you (or anyone else) tried again with the latest? Thanks, John Today I used the Vario-Elmar-R 80-200 with the R-L adapter, the APO-Extender-R ROM and firmware 2.2 installed. With this setup, the Lens Profile menu is greyed out and "Unknown Lens" appears there. The focal length is recorded as 0mm. 1 Link to post Share on other sites More sharing options...
thighslapper Posted January 2, 2017 Share #100 Posted January 2, 2017 none of the apo or other extenders transmit the lens identity to the sl Link to post Share on other sites More sharing options...
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