Winedemonium Posted April 26, 2014 Share #1 Posted April 26, 2014 Advertisement (gone after registration) The Leica website talks about over 20 lenses extending the usefulness of the Leica T via the M to T adaptor. Of course, as a manufacturer they are going to be referring to their current catalogue, which is of course all 6-bit coded. The adaptor transmits the 6-bit coding to the Leica T. So what is the penalty for using non-6-bit coded lenses on that adaptor? Is it similar to the M240, where you have a menu option to manually advise the camera which lens you mounted? Or will it be more like no correction algorithms at all, or worse, that we will have to shoot with "no lens detected"? I can't find this point covered anywhere so I would be grateful if anyone knows. Thanks Quote Link to post Share on other sites More sharing options...
Advertisement Posted April 26, 2014 Posted April 26, 2014 Hi Winedemonium, Take a look here Un-coded M lenses on Leica T?. I'm sure you'll find what you were looking for!
luigi bertolotti Posted April 26, 2014 Share #2 Posted April 26, 2014 For what I have read on the manual, coded M lenses can be recognized and info recorded - and no more - there isn't any kind of image processing related to M lenses. I THINK (but not 100% sure.. technically, given tha the T mount does transimt infos to the body, it would be easy to prevent shooting when a M code isn't recognized) that an uncoded M lens does allow to take a picture in manual mode, and of course any lens with a 6 bit code... so I am sure that in the next weeks, someday we will see in the forum some pics taken with T and Elmar 5cm... 1 Quote Link to post Share on other sites More sharing options...
Kyros Moutsouris Posted April 26, 2014 Share #3 Posted April 26, 2014 Very good question indeed. I am also curious to know whether coding non Leica lenses with solutions such as CoderKit would do the job! 1 Quote Link to post Share on other sites More sharing options...
jaapv Posted April 26, 2014 Share #4 Posted April 26, 2014 As the camera accepts an M`-R adapter I don’t think there is a problem. 2 Quote Link to post Share on other sites More sharing options...
digitalfx Posted April 26, 2014 Share #5 Posted April 26, 2014 Or will it be more like no correction algorithms at all, or worse, that we will have to shoot with "no lens detected"? I can't find this point covered anywhere so I would be grateful if anyone knows. Thanks As I understand, even a coded lens has no "correction algorithms" applied. The lenses will work just fine, you just won't have EXIF data related to the lens selection. Lens coding can be easily applied yourself to the lenses (search for a coding kit). or can be added by either Leica or any competent technician like Don at DAG. 1 Quote Link to post Share on other sites More sharing options...
marknorton Posted April 26, 2014 Share #6 Posted April 26, 2014 Has anyone seen a list of the 20 lenses which are supported? Also, I wonder what happens when you mount the R to M adapter which, on the M, allows you to select from 20 R lenses. 20 is obviously a favourite number of theirs... Increasingly taken with the design. Wondering how a FF M might look with the same design DNA... 1 Quote Link to post Share on other sites More sharing options...
luigi bertolotti Posted April 26, 2014 Share #7 Posted April 26, 2014 (edited) Advertisement (gone after registration) Has anyone seen a list of the 20 lenses which are supported? Also, I wonder what happens when you mount the R to M adapter which, on the M, allows you to select from 20 R lenses. 20 is obviously a favourite number of theirs... Increasingly taken with the design. Wondering how a FF M might look with the same design DNA... No... but, to be precise, they say "more than 20"... (and 21 are depicted in their site next to a T, included a Noctilux and an AT 135) ; indeed, I am a bit puzzled on this "magic number"... I'm curios to see which M lenses they declare as NOT USABLE : of course, there are rare "oddities" like the Hologon 15... ... but I wonder if there can be some prudential "no" on some old heavy lenses (Summicron 90) in relation to the light body of the T... Edited April 26, 2014 by luigi bertolotti Quote Link to post Share on other sites More sharing options...
jdlaing Posted April 26, 2014 Share #8 Posted April 26, 2014 The current line is 26 lenses? Quote Link to post Share on other sites More sharing options...
luigi bertolotti Posted April 26, 2014 Share #9 Posted April 26, 2014 (edited) The current line is 26 lenses? 22 in the pricelist : thinking of the current T lenses offering, probably the M lens which has less sense is the 24mm 3,8... comparing dimensions and aperture with the Summicron 23mm... the WATE too is a bit "borderline" in sight of the preannounced wideangle zoom 11-22... Edited April 26, 2014 by luigi bertolotti 1 Quote Link to post Share on other sites More sharing options...
dfarkas Posted April 26, 2014 Share #10 Posted April 26, 2014 I tried an uncoded 35 Summicron-M ASPH on the T and it worked fine. I just didn't get EXIF data in LR. As I wrote in my review, there were no lens corrections available in LR, as a new version of LR would have to be released with these in there. You can't (shouldn't is more accurate, actually) apply full frame lens corrections in LR for M lenses used on the T. Yes, the software will let you do it, but they won't correspond with the APS-C sensor size. I'm sure that in the near future, we will see lens profiles for both T lenses as well as for M lenses on the T. In that case, you should be able to select a correction manually, just as you can do now. 1 Quote Link to post Share on other sites More sharing options...
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