fatihayoglu Posted November 3, 2017 Share #1 Posted November 3, 2017 Advertisement (gone after registration) Hi all, Not to carry my Nikon D750 with 20mm lens on it, I am thinking to acquire a similar lens for my M10, for architectural and landscape purposes. CV is around £800, ZEISS around £1200 and a 2nd hand good condition SEM is around £1700. I know the speed of these lenses are all different but it will be sitting on a tripod most of the time and usually it will be around f/5.6 to f/11 for the DoF purposes. In fact I can get Zeiss for £650 as a 2nd hand and also Leica Elmarit 21/2.8 for £850 So, any recommendations you would like to give, pro's and con's of these lenses. BW, Fatih Link to post Share on other sites More sharing options...
Advertisement Posted November 3, 2017 Posted November 3, 2017 Hi fatihayoglu, Take a look here Biogon 21/2.8 vs CV 21/1.8 vs SEM/3.4. I'm sure you'll find what you were looking for!
lct Posted November 3, 2017 Share #2 Posted November 3, 2017 I have both Elmarit 21/2.8 asph and SEM 21/3.4 asph. Would advise the latter for its better edge-to-edge sharpness around f/5.6. No experience with CV 21/1.8 & ZM 21/2.8 sorry. Link to post Share on other sites More sharing options...
michaelwj Posted November 3, 2017 Share #3 Posted November 3, 2017 If money is no issue the SEM is the smallest and sharpest. The CV is big, best only if you need the wide aperture. The ZM sits in the middle in all respects. If money is an issue I'd get the 2nd hand ZM. On film I would recommend the 4.5/21 ZM. Link to post Share on other sites More sharing options...
Xavier Posted November 3, 2017 Share #4 Posted November 3, 2017 If money is no issue the SEM is the smallest and sharpest. The CV is big, best only if you need the wide aperture. The ZM sits in the middle in all respects. If money is an issue I'd get the 2nd hand ZM. On film I would recommend the 4.5/21 ZM. I do not have first hand experience with the CV, and barely tried the SEM, but I essentially bought the ZM based on that understanding of the situation. If money had been no object, I would have bought the SEM, and I may upgrade to it at some point, but for now, the ZM does the job. The performance of the ZM is overall pretty nice in my experience, but at times, I get disappointing results (color cast, lack of sharpness in the corners). It does not happen often, but I cannot track what is the problem (I guess a combination of aperture and focusing distance, but have not done rigorous testing). Still, most often than not, I am very pleased with its sharpness, contrast and colors. Link to post Share on other sites More sharing options...
pico Posted November 3, 2017 Share #5 Posted November 3, 2017 If your photography is going to be from a tripod, forget the miniature Leica format. Move up and be happier. Link to post Share on other sites More sharing options...
michaelwj Posted November 3, 2017 Share #6 Posted November 3, 2017 Pico, I think the point was to not carry the D750 around. Not sure trading a D750 for a MF/LF setup makes sense. Link to post Share on other sites More sharing options...
fatihayoglu Posted November 3, 2017 Author Share #7 Posted November 3, 2017 Advertisement (gone after registration) Thank you very much for all your feedbacks. I’m trying to leave D750 at home as much as possible except for the scenerios where I have to have it like Astro or Wildlife shooting I do. I do travel quite a lot in a year, some long trips to countries like Peru some short like Luxembourg. So for long one I don’t mind carrying 2 system around as usually I have a transport booked but if it is a short trip, having 2 system is cumbersome. So that’s why I’d like to have 20/21mm on my Leica. So yes that’s why MF/LF are not what I’m looking for. A used ZM 21/2.8 is running around £650 but a used SEM is around £1800. So if the differences are not that much I’d prefer to save money and move to SEM in the future maybe. Regarding to Color cast on ZM 21/2.8, have you coded correctly, some says it needs to be coded as as pre ASPH 21/2.8. TBH, I don’t want to have too much problem as well Link to post Share on other sites More sharing options...
epand56 Posted November 4, 2017 Share #8 Posted November 4, 2017 Any review on the internet states that the CV 21/1.8 (£800) performs as well (if not better) as the Summilux 21/1.4 (£6500) and I can say that, having tested both, I have seen no differences. The CV 21/1.8 is an extraordinary performer, very crisp and sharp, and a very well built lens. And the flange features a trench for hand coding. Only boring issue is you can't dismount the hood, but is a venial sin. Link to post Share on other sites More sharing options...
fatihayoglu Posted November 4, 2017 Author Share #9 Posted November 4, 2017 Any review on the internet states that the CV 21/1.8 (£800) performs as well (if not better) as the Summilux 21/1.4 (£6500) and I can say that, having tested both, I have seen no differences. The CV 21/1.8 is an extraordinary performer, very crisp and sharp, and a very well built lens. And the flange features a trench for hand coding. Only boring issue is you can't dismount the hood, but is a venial sin. And that venial sin won’t allow me to use the filters I guess, which is disappointing as I was inclining to get that one Link to post Share on other sites More sharing options...
antigallican Posted November 4, 2017 Share #10 Posted November 4, 2017 I’m confused. Why would a landscape photographer need F1.4 or F1.8? Link to post Share on other sites More sharing options...
fatihayoglu Posted November 4, 2017 Author Share #11 Posted November 4, 2017 I’m confused. Why would a landscape photographer need F1.4 or F1.8? To use that lens for other purposes as well. I’m not a landscape photographer, merely it can be called as travel photography. Link to post Share on other sites More sharing options...
antigallican Posted November 4, 2017 Share #12 Posted November 4, 2017 Ah, I see. Thanks for reply Link to post Share on other sites More sharing options...
stephengv Posted November 4, 2017 Share #13 Posted November 4, 2017 I suggest the 21mm Color Skopar Link to post Share on other sites More sharing options...
fatihayoglu Posted November 4, 2017 Author Share #14 Posted November 4, 2017 I suggest the 21mm Color Skopar Is there any color cast problem, how do you the coding? Can you do it via PP or you have to set the camera each time? Link to post Share on other sites More sharing options...
stephengv Posted November 5, 2017 Share #15 Posted November 5, 2017 I use the 21mm Elmarit 2.8 lens profile. It somewhat eliminate 80-85% of the color cast. However for complete removal, you may use the free Lightroom Flat field plug in or just add lightroom's "graduated filter with white balance adjusted to green" on the color cast. The lens is sharp and small. It uses a 39mm filter, which is a plus for me. some sample shots: Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/278410-biogon-2128-vs-cv-2118-vs-sem34/?do=findComment&comment=3388978'>More sharing options...
onasj Posted November 5, 2017 Share #16 Posted November 5, 2017 Probably the most useful in-depth test and review of 21 mm M-mount lenses: http://www.ronscheffler.com/techtalk/?page_id=130 Link to post Share on other sites More sharing options...
cbretteville Posted November 5, 2017 Share #17 Posted November 5, 2017 I have owned two copies of the CV/21/4 and the ZM 21/2.8. The Voigtlanders are wonderful for their size (if you find a good sample). The Zeiss is nice. I currently have an Elmarit 21/2.8 (the E60). A wonderful lens designed by Walter Mandler. I just enjoy the images it makes so much more than any of the other 21s I have owned. Link to post Share on other sites More sharing options...
epand56 Posted November 6, 2017 Share #18 Posted November 6, 2017 And that venial sin won’t allow me to use the filters I guess, which is disappointing as I was inclining to get that one Of course you can use filters, I don't remember the size, but you can easily screw a filter on the lens. The hood's petals are large enough to allow this without problems. Link to post Share on other sites More sharing options...
fatihayoglu Posted November 6, 2017 Author Share #19 Posted November 6, 2017 I have owned two copies of the CV/21/4 and the ZM 21/2.8. The Voigtlanders are wonderful for their size (if you find a good sample). The Zeiss is nice. I currently have an Elmarit 21/2.8 (the E60). A wonderful lens designed by Walter Mandler. I just enjoy the images it makes so much more than any of the other 21s I have owned. So would you chose LEICA 21 pre-ASPH E60 over ZM21/2.8? Could you give me an idea why? Link to post Share on other sites More sharing options...
fatihayoglu Posted November 6, 2017 Author Share #20 Posted November 6, 2017 And then of course there is a possibility of getting a Zeiss 21/2.8 Distagon ZF (I guess it is better than Biogon) and using it with an adaptor, how about this? Link to post Share on other sites More sharing options...
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