Urmelchen Posted June 16, 2013 Share #1 Posted June 16, 2013 Advertisement (gone after registration) Nokton 1,5/50 on M Type 240 by Urmelchen, on Flickr Nokton 1,5/50 on M Type 240 by Urmelchen, on Flickr Voigtländer Nokton 1,5/50 asph by Urmelchen, on Flickr Link to post Share on other sites More sharing options...
Advertisement Posted June 16, 2013 Posted June 16, 2013 Hi Urmelchen, Take a look here The new Voigtländer Nokton 1,5/50 aspherical. I'm sure you'll find what you were looking for!
viramati Posted June 16, 2013 Share #2 Posted June 16, 2013 I used to have the old one which really gave the 50 lux asph a run for it's money considering the price Link to post Share on other sites More sharing options...
horosu Posted June 16, 2013 Share #3 Posted June 16, 2013 Thank you for the pics, Could you post any images with this combination? What is your impression of this lens: build/image quality? Kind regards, Horea Link to post Share on other sites More sharing options...
gsgary Posted June 16, 2013 Share #4 Posted June 16, 2013 Lovely i'm getting a black one Link to post Share on other sites More sharing options...
Urmelchen Posted June 16, 2013 Author Share #5 Posted June 16, 2013 Thank you for the pics, Could you post any images with this combination? What is your impression of this lens: build/image quality? Kind regards, Horea Look here: Voigtländer Nokton 1,5/50 asph - a set on Flickr Link to post Share on other sites More sharing options...
gsgary Posted June 16, 2013 Share #6 Posted June 16, 2013 Look here: Voigtländer Nokton 1,5/50 asph - a set on Flickr After looking at those getting one now is a must Link to post Share on other sites More sharing options...
Paul J Posted June 16, 2013 Share #7 Posted June 16, 2013 Advertisement (gone after registration) The shot of the branch has particularly nice rendering. Very interesting. Link to post Share on other sites More sharing options...
underground Posted June 17, 2013 Share #8 Posted June 17, 2013 That lens is great for the price. under 2 thousand USD Link to post Share on other sites More sharing options...
Erik Gunst Lund Posted June 17, 2013 Share #9 Posted June 17, 2013 These bright scenes looks really good, the swirls in the oof areas reminds me of Noctilux f/1 shots... It will be interesting to see low light performance, street scenes with point light source etc. Link to post Share on other sites More sharing options...
farnz Posted June 17, 2013 Share #10 Posted June 17, 2013 The shot of the branch with the bright light in the background is quite revealing to me. There are discs as I'd expect but there are also plenty of less bright discs scattered among them, which suggests to me that these are internal reflections from inside the lens. Normally I would expect these to be prevented by the coatings on the elements but that doesn't seem to be the case here so I wonder if there's a coating issue (or perhaps a reflective filter on the lens?). Interestingly there doesn't appear to be much veiling glare and associated loss of contrast so I'm not sure what's going on. Pete. Link to post Share on other sites More sharing options...
colorflow Posted June 17, 2013 Share #11 Posted June 17, 2013 Apologize for going off topic. Is that a Luigi half-case? Thanks, Link to post Share on other sites More sharing options...
Paul J Posted June 17, 2013 Share #12 Posted June 17, 2013 The shot of the branch with the bright light in the background is quite revealing to me. There are discs as I'd expect but there are also plenty of less bright discs scattered among them, which suggests to me that these are internal reflections from inside the lens. Normally I would expect these to be prevented by the coatings on the elements but that doesn't seem to be the case here so I wonder if there's a coating issue (or perhaps a reflective filter on the lens?). Interestingly there doesn't appear to be much veiling glare and associated loss of contrast so I'm not sure what's going on. Pete. Perhaps I'm not following you but I think you are referring smaller patches of light. The hotter areas are multiple spectral highlights clustered and layered on each other and or large gaps in the tree leaves. All lenses act like this. Essentially, multiple exposures. Link to post Share on other sites More sharing options...
farnz Posted June 17, 2013 Share #13 Posted June 17, 2013 I'm referring to the many progressively lighter discs that overlay each other 'deeper' into the picture. Since they're getting less and less intense and there appear to be perfect, lighter replicas of many of the bright discs close to them suggests internal reflections to me. I have a number of fast 50's including a 50/1 Noctilux, 50 Summilux asph, 50/1.5 Zeiss Opton Sonnar, 50/1.4 Nikkor Kogaku, and 50/1.5 Nokton v1 and I don't see this particular characteristic from them. Mis-shapen discs in a variety of attitudes as they're coronally truncated yes, but not gradually lightening discs that are perfect replicas of brighter ones. It's just my observation rather than a criticism so please ignore if you wish. Pete. Link to post Share on other sites More sharing options...
pico Posted June 17, 2013 Share #14 Posted June 17, 2013 A picture of the lens shows us nothing. . Link to post Share on other sites More sharing options...
Urmelchen Posted June 18, 2013 Author Share #15 Posted June 18, 2013 Apologize for going off topic. Is that a Luigi half-case?Thanks, No Angelo Pelle LEICA HALF CASES - angelo pelle Link to post Share on other sites More sharing options...
Erik Gunst Lund Posted June 18, 2013 Share #16 Posted June 18, 2013 A picture of the lens shows us nothing.. Did you see the link to the images... Look here: Voigtländer Nokton 1,5/50 asph - a set on Flickr Link to post Share on other sites More sharing options...
adan Posted June 18, 2013 Share #17 Posted June 18, 2013 I'm referring to the many progressively lighter discs that overlay each other 'deeper' into the picture. Since they're getting less and less intense and there appear to be perfect, lighter replicas of many of the bright discs close to them suggests internal reflections to me. Pete. Hmm - I would say that the various disks of varying intensities that are all about the same size are simply from different-sized "holes" in the leafy background. A smaller "aperture" in the foliage renders as a dimmer - but not significantly smaller - blur circle/cat's-eye. Some places they sort of align, and other places they don't, and that is just a natural semi-random distribution pattern. (The leaves and gaps overall are random, but there may be a "line" of circles when the leaves and gaps are spaced along a tree branch, for example.) What I do notice is that - within a given blur circle, especially the medium-bright ones - there is an ethereal concentric circular "fresnel-lens" pattern. That looks to me more like either a diffraction effect akin to Airy disks... File:Airy disk created by laser beam through pinhole.jpg - Wikimedia Commons ...or reflections (classic infinite hall-of-mirrors effect) within the sensor's glass cover plate (although it may be something else entirely). It is definitely something I have seen with other lenses, much more prominently in digital images than with film, and seems to be more pronounced with aspheric or ED lenses. Link to post Share on other sites More sharing options...
TomB_tx Posted June 18, 2013 Share #18 Posted June 18, 2013 What I do notice is that - within a given blur circle, especially the medium-bright ones - there is an ethereal concentric circular "fresnel-lens" pattern. I've used the previous LTM Nokton 50 1.5 for a few years, and a concentric pattern would show up on extremely OOF highlights, like on this "Christmas lights" 100% crop. I've heard speculation that it is caused by the press-forming of the aspheric element, of possibly by the edges of the element. Except for this issue and a fair amount of "purple fringing" on very high contrast highlights on the M9, I liked the LTM version, and keep it on my M5, where these things don't show up. It is a very sharp lens with perfect focus on my M9. (Note: don't judge sharpness on this example, as it was not focused on these objects.) I may get the M mount version as well. 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/206946-the-new-voigtl%C3%A4nder-nokton-1550-aspherical/?do=findComment&comment=2352546'>More sharing options...
smkoush Posted June 19, 2013 Share #19 Posted June 19, 2013 Except for this issue and a fair amount of "purple fringing" on very high contrast highlights on the M9, I liked the LTM version, and keep it on my M5, where these things don't show up. These concentric patterns do appear on film as well. I observed similar onion-like patterns in out of focus regions (typically distant light bulbs) with the 35mm Nokton f/1.2 version 1. This was using film (MP). Link to post Share on other sites More sharing options...
Paul J Posted June 19, 2013 Share #20 Posted June 19, 2013 It is commonly refered to as Onion Bokeh, or Onion Ring Bokeh. It's caused by diffraction in Aspherical elements in particular and is caused in glass production processs, moulding rather than grinding. Link to post Share on other sites More sharing options...
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