sdai Posted August 23, 2007 Share #41 Posted August 23, 2007 Advertisement (gone after registration) The guy who started the 1.1x talks on dpreview is a pen pal of mine on one of the Chinese web sites (Xitek), he did it just for fun. Jeff-C ... aka. curtner-cn ... LOL Link to post Share on other sites More sharing options...
Advertisement Posted August 23, 2007 Posted August 23, 2007 Hi sdai, Take a look here Leica lenses on this Canon 21 Mpixel 1Ds MkIII should be superb. I'm sure you'll find what you were looking for!
telyt Posted August 23, 2007 Share #42 Posted August 23, 2007 The EOS-1Ds Mark II is only the second (or third) Canon DSLR to sample, process, and store 14 bit raw data; prior to the introduction of the EOS-1D Mark III earlier this year, all the EOS models were restricted to 12 bits. The DMR's pixels are 16 bit and the difference shows in the results. This benchmark has been out for a few years now and Canon still hasn't matched it. Link to post Share on other sites More sharing options...
Riley Posted August 23, 2007 Share #43 Posted August 23, 2007 I was surprised that the max is 1600 as the range on the 1dIII is to 3200 (with an optional 6400!!). I'm assuming the extra pixels make it harder to squeeze that extra stop out of the chip. well get ready for this 1600iso is no longer 1600iso The use of ISO REI (recommended exposure index) and ISO SOS (standard output sensitivity) throws yet another curve to negotiate. Doug Kerr notes the following "I note that on the Canon USA site, in the specifications for the EOS 40D, the "ISO" sensitivity range is identified (by footnote) as being in terms of "standard output sensitivity" [sOS] and recommended exposure index" [REI]. EOS (SLR) Camera Systems - Digital EOS Cameras - 35mm EOS Cameras - Lenses - Flashes - Digital SLR - EOS-1Ds Mark III - Canon USA Consumer Products ISO Speed Range: Equivalent to ISO 100-1600* (in 1/3-stop or whole stop increments), ISO speed can be expanded to ISO 50 and 3200 (via C.Fn I-3) * Standard output sensitivity. Recommended exposure index. Note that this means that the "ISO" numbers cited in the various literature on the 40D are not "ISO speed" ratings (as we typically assume) but rather refer to these new alternate (ISO) measures. You may have read my earlier explanations here of this. In recent correspondence in another forum, Chuck Westfall of Canon USA intimated that Canon's actual policy now is to designate these "ISO" settings in terms of REI values (but not also as SOS values). I think that they had earlier intended to designate them as both (which is an allowable possibility), and the change in policy did not yet flow through to all the documentation. You can read more about this matter here: http://www.openphotographyforums.com...ead.php?t=3652 Link to post Share on other sites More sharing options...
J_Brittenson Posted August 23, 2007 Share #44 Posted August 23, 2007 That’s right – smaller pixels imply more noise. Actually, to be specific, with all else equal smaller pixels imply lower sensitivity, less charge capacity, and lower frame rate due to more pixels to read out. The noise is introduced when compensating for these losses by turning up the readout speed, quantization speed, and quantization gain. If you're willing to accept a slower camera you could retain most of the image quality; it would simply be less sensitive (lower native ISO) and have a lower frame rate. What's impressive about the Canons IMO is the digic processors which can turn out images incredibly fast and at pretty damn high quality. In absolute quality though none of the Canon DSLRs I've had really compared to either the M8 or DMR. (Like many others here I think the DMR still has an edge over the M8 in terms of quality.) Curiously, I liked the 1Ds2 the least, it never really did anything special for me, the images always looked lifeless and overly processed. Not badly so, it's a competent tool, just nothing special. If the 1Ds3 is more of the same I'm not really interested. (I keep getting told the 5D is a lot better than the 1Ds2 in quality, but it can't use my modified R19/2.8.) (BTW, I should add that I don't think noise is a big indicator of quality as long as it's low enough. The DMR at 400 is low enough for me.) Link to post Share on other sites More sharing options...
Jamie Roberts Posted August 23, 2007 Share #45 Posted August 23, 2007 Jamie, you are right on regarding profiles. I made my own profile for the DMR for use in C1 with the i1 XT. MUCH better. The color accuracy and vibrancy are so much better that I want to go back to old shots and reprocess them all. And I love that C1 remembers that I want to use my M8 profile with M8 shots and my DMR profile with DMR shots. I don't have to manually select profiles anymore, and I'm really enjoying the default rendering now. I've posted my M8 profiles for forum members a while back, but I haven't put up my new DMR profile. If anyone wants it, let me know. I can email it to you or put it up somewhere for download. David David--thanks! That's a lovely offer--and I'll take you up on it. I'd love to see your DMR profile. @ Conrad, that is just bizarre on the green-ness of the FlexColor stuff. In fact, it's the other way 'round with me and the C1 DMR profile; skin tones definitely look a little too green! LOL!! Of course, I'm on Windoze and I'm betting now you're on a Mac. Different colour sub-systems entirely... Link to post Share on other sites More sharing options...
mgcd Posted August 24, 2007 Share #46 Posted August 24, 2007 . @ Conrad, that is just bizarre on the green-ness of the FlexColor stuff. In fact, it's the other way 'round with me and the C1 DMR profile; skin tones definitely look a little too green! LOL!! Of course, I'm on Windoze and I'm betting now you're on a Mac. Different colour sub-systems entirely... Bingo! Cheers, Link to post Share on other sites More sharing options...
hannycatania Posted April 7, 2013 Share #47 Posted April 7, 2013 Advertisement (gone after registration) Jamie, you are right on regarding profiles. I made my own profile for the DMR for use in C1 with the i1 XT. MUCH better. The color accuracy and vibrancy are so much better that I want to go back to old shots and reprocess them all. And I love that C1 remembers that I want to use my M8 profile with M8 shots and my DMR profile with DMR shots. I don't have to manually select profiles anymore, and I'm really enjoying the default rendering now. I've posted my M8 profiles for forum members a while back, but I haven't put up my new DMR profile. If anyone wants it, let me know. I can email it to you or put it up somewhere for download. David Hello. I know it's been a bit of time, but reading your old post about the Leica DMR said you have a specific color profile to use in Capture One. I still welcomed by the DMR. Could you kindly send me the color profile. My email address is: annibale.catania (at) alice.it Thank you very much. Annibale Catania. Link to post Share on other sites More sharing options...
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