farnz Posted January 30, 2021 Share #81 Posted January 30, 2021 Advertisement (gone after registration) 3 hours ago, shirubadanieru said: I have a question, is f1.2 half a stop brighter than f1.4 or is it a full stop? Can anyone enlighten me? Thank you in advance. The stops follow two interleaved series that each double each time: f/1, f/2, f/4, f/8, f/16, f/32, f/64 ... f/1.4, f/2.8, f/5.6, f/11(.2), f/22(.4), f/44(.8) ... And so: f/1, f/1.4, f/2, f/2.8, f/4, f/5.6, f/8, f/11, f/16, f/22, f/32, f/44, f/64 ... It's the result of the aperture representing the area of the hole through the diaphragm blades. You can see that a full stop brighter than f/1.4 would be f/1.0 so, as mentioned by others, f/1.2 is a half-stop brighter than f/1.4. This doesn't seem much, and possibly negligible, until it's translated to the percentage of light that passes through the lens (Transmittance in T-stops) that our video colleagues use, which shows that it's actually significant. Pete. 9 3 Link to post Share on other sites More sharing options...
Advertisement Posted January 30, 2021 Posted January 30, 2021 Hi farnz, Take a look here Review: Leica Noctilux 50mm f1.2. I'm sure you'll find what you were looking for!
Herr Barnack Posted January 30, 2021 Share #82 Posted January 30, 2021 This article may help in understanding illumination fall off based on the distance from the light source to the subject. Light fall off is governed by the inverse square law of light: https://www.dpmag.com/how-to/tip-of-the-week/how-light-works-the-inverse-square-law/ 2 Link to post Share on other sites More sharing options...
vanGeist Posted January 30, 2021 Share #83 Posted January 30, 2021 (edited) Am 29.1.2021 um 17:55 schrieb Herr Barnack: Now we have an entire buffet line of Noctilux lenses to choose from - Noctilux 50mm f/1.2 (old) Noctilux 50mm f/1.0 with 4 different versions (old) Noctilux 50mm f/0.95 black or chrome (current) Noctilux 50mm f/1.2 black or chrome (current) Noctilux 75mm f/1.25 (current) This is a good thing. I'm still waiting for a 35 mm Noctilux. Zenit has a f/1 and Voigtländer three different 1.2 Nokton lenses for the M system. It would be thrilling to see how good a Leica one would perform. Edited January 30, 2021 by vanGeist spelling error 2 Link to post Share on other sites More sharing options...
farnz Posted January 30, 2021 Share #84 Posted January 30, 2021 2 minutes ago, vanGeist said: I'm still waiting for a 35 mm Noctilux. Zenit has a f/1 and Voigtländer three different 1.2 Norton lenses for the M system. It would be thrilling to see how good a Leica one would perform. The thing is I've heard a number of people wonder the same thing and I have to say that I expect that they'll be disappointed because the 1.2 Noctilux has been deliberately designed as a legacy lens and to replicate the 'look' of the first 1.2 Noctilux whereas the other fast lenses from Zeiss, Voigtlander, Zenit, 7Artisans etc have been designed to be razor-sharp, which is a completely different intention and goal. Pete. Link to post Share on other sites More sharing options...
pedaes Posted January 30, 2021 Share #85 Posted January 30, 2021 4 minutes ago, farnz said: 4 minutes ago, farnz said: The thing is I've heard a number of people wonder the same thing and I have to say that I expect that they'll be disappointed because the 1.2 Noctilux has been deliberately designed as a legacy lens and to replicate the 'look' of the first 1.2 Noctilux whereas the other fast lenses from Zeiss, Voigtlander, Zenit, 7Artisans etc have been designed to be razor-sharp, which is a completely different intention and goal. Pete. Absolutely correct. This has to be understood as a 'heritage' lens as the others in the series, with hopefully more to come. It is not about competing with modern lens designs. To have these old optical formulas reproduced without the issues that old lenses have provides an attractive proposition. 7 1 Link to post Share on other sites More sharing options...
jonoslack Posted January 30, 2021 Author Share #86 Posted January 30, 2021 15 minutes ago, pedaes said: Absolutely correct. This has to be understood as a 'heritage' lens as the others in the series, with hopefully more to come. It is not about competing with modern lens designs. To have these old optical formulas reproduced without the issues that old lenses have provides an attractive proposition. I think so as well - and I think there will be more to come - an exciting proposition. 33 minutes ago, vanGeist said: I'm still waiting for a 35 mm Noctilux. Zenit has a f/1 and Voigtländer three different 1.2 Norton lenses for the M system. It would be thrilling to see how good a Leica one would perform. I'm a bit surprised they haven't done this as well, but I think there is a feeling at Leica that for 'serious' photographic use these very fast lenses aren't terribly useful, and that if you make an f2 you have so many more opportunities to make a perfect lens (hence the SL summicrons), and with the APO designs you can almost duplicate the depth of field of faster lenses without any of the compromises needed to make faster lenses. The motivation for making very fast lenses was having to deal with film which was already pretty crap at 800 ISO, now we have 4 stops better than that at better quality with modern sensors that motivation has pretty much gone. 4 Link to post Share on other sites More sharing options...
wattsy Posted January 30, 2021 Share #87 Posted January 30, 2021 (edited) Advertisement (gone after registration) On 1/28/2021 at 1:49 PM, jonoslack said: Unlike the 90mm Thambar or the 28mm Summaron (lovely as they are), the Noctilux is very usable as an everyday lens, I'd have to take issue with that statement, Jono, at least as far as the 28 Summaron-M goes. Although I often still use the 90 Macro for a particular purpose, the 28 Summaron-M has supplanted all my other lenses and been very much my "everyday lens" for the last 4 years. It's perfect in that role. The Thambar-M, on the other hand, is about as non-everyday as a lens can be. I don't regret buying that lens as such but it spends virtually all the time in its rather nice leather case. Edited January 30, 2021 by wattsy 5 Link to post Share on other sites More sharing options...
Overgaard Posted January 30, 2021 Share #88 Posted January 30, 2021 21 hours ago, jonoslack said: Hi Pete - and Wilson I'm certain there isn't a limit in numbers on the black ones - really really certain (I was talking long term sales numbers with someone from Leica just yesterday), clearly they should have made 200 silver ones 🤣. and I'm sure that the East End Dealer will get you one Pete! all the best Jono Yes, 200 silver ones. I hope the black is unlimited though I took note that Leica Store Konstanz seem to have it put as limited to 1800. It's a good idea to make a collectors item for the serious collectors and one unlimited edition for us commoners. 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! 3 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/317411-review-leica-noctilux-50mm-f12/?do=findComment&comment=4129163'>More sharing options...
jonoslack Posted January 30, 2021 Author Share #89 Posted January 30, 2021 12 minutes ago, wattsy said: I'd have to take issue with that statement, Jono, at least as far as the 28 Summaron-M goes. Although I often still use the 90 Macro for a particular purpose, the 28 Summaron-M has supplanted all my other lenses and been very much my "everyday lens" for the last 4 years. It's perfect in that role. The Thambar-M, on the other hand, is about as non-everyday as a lens can be. I don't regret buying that lens as such but it spends virtually all the time in its rather nice leather case. I'm busy eating my words, by 28 Summaron is about to have a renaissance - 4 Link to post Share on other sites More sharing options...
ELAN Posted January 30, 2021 Share #90 Posted January 30, 2021 (edited) 1 hour ago, jonoslack said: I think so as well - and I think there will be more to come - an exciting proposition. I am eagerly waiting for the heritage 35/2.8 Summaron (and the new 35 APO Summicron). I intend to get both. As for the 28/5.6, I love this little lens and use it quite often, especially in strong daylight. Edited January 30, 2021 by ELAN 4 Link to post Share on other sites More sharing options...
Flu Posted January 30, 2021 Share #91 Posted January 30, 2021 Great photos! I'm excited and planning to get both black and silver - can't wait!! 1 2 Link to post Share on other sites More sharing options...
pedaes Posted January 30, 2021 Share #92 Posted January 30, 2021 1 hour ago, wattsy said: spends virtually all the time in its rather nice leather case. That should help it develop some age related issues😉 1 1 Link to post Share on other sites More sharing options...
jonoslack Posted January 30, 2021 Author Share #93 Posted January 30, 2021 29 minutes ago, ELAN said: I am eagerly waiting for the heritage 35/2.8 Summaron (and the new 35 APO Summicron). I intend to get both. As for the 28/5.6, I love this little lens and use it quite often, especially in strong daylight. Hi There Elan - Do you think they'll do the 35/2.8 Summaron? Incidentally I hope you're keeping well Link to post Share on other sites More sharing options...
ELAN Posted January 30, 2021 Share #94 Posted January 30, 2021 20 minutes ago, jonoslack said: Hi There Elan - Do you think they'll do the 35/2.8 Summaron? Incidentally I hope you're keeping well Hello Jono - it's logical that the 35/2.8 Summaron is next, after they did a 28, 50 and 90 it's time for a 35 and the Summaron won't compete with any 35 in the current lineup. But you should know better than I... All is well here, thanks for asking. Regards to Emma. Link to post Share on other sites More sharing options...
fotografr Posted January 30, 2021 Share #95 Posted January 30, 2021 I almost pre-ordered this lens as soon as I heard about it. I love the focal length, size, weight and f/1.2 maximum aperture. I'm glad I held off. I've downloaded all of the sample DNGs on the Leica site and looked very closely at Jono's work in his review. At f/2.0 the lens produces what I'd call very nice images. Not tack sharp, but pretty good and with a lovely bokeh. At f/2.8, it's superb. Very sharp and still holding the beauty in the out of focus areas. What kills it for me is the performance at f/1.2, which as far as I'm concerned is the aperture I'd always want to use this lens at. It's dreadful. The Leica site has a DNG of a guy having his haircut and smoking a cigar. It was shot wide open and when pulling the image up 50% and 100%, the lack of sharpness was kind of shocking. I'll be sitting this one out. Cheers, Brent Link to post Share on other sites More sharing options...
Keith (M) Posted January 30, 2021 Share #96 Posted January 30, 2021 1 hour ago, ELAN said: I am eagerly waiting for the heritage 35/2.8 Summaron (and the new 35 APO Summicron). I intend to get both. As for the 28/5.6, I love this little lens and use it quite often, especially in strong daylight. Well, at least if a 'new/old' 35mm f2.8 Summaron is released, my wallet will be safe! 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! 9 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/317411-review-leica-noctilux-50mm-f12/?do=findComment&comment=4129310'>More sharing options...
Daniel C.1975 Posted January 30, 2021 Share #97 Posted January 30, 2021 (edited) vor 1 Stunde schrieb jonoslack: Hi There Elan - Do you think they'll do the 35/2.8 Summaron? Incidentally I hope you're keeping well You should In my very humble opinion the new 28 Summaron is one of the most underrated lenses out. It draws beautiful, is plenty sharp and a gem to look at. Only draw backs are the never 100% sharp corners and that it starts at 5.6. love it! Btt: The 50 1.2 looks amazing Edited January 30, 2021 by Daniel C.1975 4 Link to post Share on other sites More sharing options...
wlaidlaw Posted January 30, 2021 Share #98 Posted January 30, 2021 53 minutes ago, Keith (M) said: Well, at least if a 'new/old' 35mm f2.8 Summaron is released, my wallet will be safe! Mine too. There is a 35/2.8 Summaron sitting on my IIIg with a SBLOO finder at the moment. When I got this lens I did some test shots on a tripod with my M240 and compared it with the 35 ASPH Summicron I have. Apart from a little more vignetting at f2,8, I could not distinguish between the images. I also love the way its infinity lock works - mechanical perfection. It was a quite expensive purchase from Leicashop, which I wondered on its wisdom at the time, but when I saw its mint condition and that it came in the original perspex case with the original LTM to M adapter ring, I decided it was worth every euro. There are a number of these LTM lenses around which have been unscrewed from spectacles, as the LTM lenses are worth considerably more than the spectacles M3 version. Of course they will not focus correctly on an RF camera and the give away is that the focus scale goes to 0.7m not the 1.0m of the genuine LTM version. Wilson Link to post Share on other sites More sharing options...
Lins-Barroso Posted January 30, 2021 Share #99 Posted January 30, 2021 On 1/29/2021 at 5:43 AM, Overgaard said: Where did you find the online presentation. Missed that completely and doesn't seem to be on the Leica youtube or Vimeo. @Overgaard 2 Link to post Share on other sites More sharing options...
elmars Posted January 31, 2021 Share #100 Posted January 31, 2021 One question, Jono: What ist with focus shift? Did You test it? Nearly all older lens constructions, especially the fast ones, suffer from it. 1 Link to post Share on other sites More sharing options...
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