farnz Posted September 27, 2012 Share #61 Â Posted September 27, 2012 Advertisement (gone after registration) Jaques and Wilson, Â I, too, am using a Zeiss Opton Sonnar (50/2) 822715 with a Muscelli adaptor. I notice that the Bokeh is very smooth but starts to get double lines as the Absinthe level diminishes. It seems to be the same with the in-focus lines. Quite extraordinary lens behaviour. Â Pete. Link to post Share on other sites More sharing options...
Advertisement Posted September 27, 2012 Posted September 27, 2012 Hi farnz, Take a look here New M mount 50mm F1.13 coming.. I'm sure you'll find what you were looking for!
brianv Posted September 27, 2012 Share #62 Â Posted September 27, 2012 The Post War West German 50/1.5 Sonnar and Post War Carl Zeiss Jena Sonnar are both recomputed from the 5cm F1.5 pre-war lens. I've found two different versions of the West German 50/1.5, different optical fixtures, slightly different glass, and made at the same time as each other. Like two different assembly lines. The "T" coating denotes single layer coating. Zeiss started coating Sonnars in 1936, marked them with a "T" in 1938 or so. The T* denotes multi-coated optics, came in later. Link to post Share on other sites More sharing options...
wlaidlaw Posted September 27, 2012 Share #63 Â Posted September 27, 2012 Brian, Â My 50/1.5 has no marking for the type of coating. I have been told that the changeover from T to T* multi coating occurred around lens serial numbers after #1050000. Mine certainly has the purple blue tint that I associate with later Zeiss lenses, which were marked T*. Have you any information on this? Â I believe the way to distinguish East from West German lenses quickly, is that only the West German lenses are engraved on the back element housing with "made in germany". Fakers trying to increase the value of Russian and East German lenses often forget about this. Also the West German lenses have chromed brass bodies, rather than aluminium. I saw one hilarious one which was engraved on the front ring "Opten Sonnar" Â Wilson Link to post Share on other sites More sharing options...
brianv Posted September 27, 2012 Share #64  Posted September 27, 2012 Manufacturers started multi-coating optics in the late 1960s. I don't know of any multi-coated Sonnars made in Contax mount, unless done after-market. All of the post-war Sonnars that I've seen are coated. The C-Sonnar in M-Mount and Nikon S-Mount is a T* multicoated lens.  The West German Sonnars are marked in "mm", the East German Sonnars kept the "cm" markings. I need to post some pictures of the two side-by-side. The Post-War East German Sonnars (SN > 3M) stopped stamping the SN into the rear fixture. The diameter of the optics increased, so it is a new formulation. The East German lens has a larger rear fixture that prevents it from being used with an Amedeo adapter, it interferes with the RF pickup.  This 1950 Jupiter-3 has a Zeiss SN showing it was completed in April 1945.  J-3, Zeiss SN by anachronist1, on Flickr  It was assembly practice at the KMZ factory, focal length was too short and it was held into it's Contax/Kiev mount with sewing thread. I fixed it. Lengthened the focal length by moving the rear out, put it in a Leica mount focus module.  1950 KMZ J-3 by anachronist1, on Flickr  Burke Lake by anachronist1, on Flickr Link to post Share on other sites More sharing options...
jaques Posted September 30, 2012 Share #65  Posted September 30, 2012 I only just realized that Mr Miyazaki has already made a Sonnar type f1.3 lens- way back in 2006- with a dual Nikon/Leica mount:  MS Optical R&D - Camerapedia  anyone one on here have experience with that lens? Only 200 were made. The new lens looks a bit like V2 of that design...  Looking on flickr there are some nice samples:  MS Optical R&D MS-Mode-S 50mm f1.3 | Flickr - Photo Sharing!  Looks like the new lens will be very similar? In the samples I have seen so far- the colour blue seems to render very nicely (for want of a better description)- is this anything connected with the Sonnar design? Link to post Share on other sites More sharing options...
farnz Posted September 30, 2012 Share #66 Â Posted September 30, 2012 How comparable is a 50 mm f/1.3 lens with a 50 mm f/1.13 I wonder? The wider aperture will include rays from very near the lens's outer edge, which may add significantly to its aberrations. Â Pete. Link to post Share on other sites More sharing options...
wlaidlaw Posted September 30, 2012 Share #67 Â Posted September 30, 2012 Advertisement (gone after registration) There was one of these f1.3 Sonnars on sale on eBay recently. Asking a lot of money for it (around $3k). Â Wilson Link to post Share on other sites More sharing options...
jaques Posted September 30, 2012 Share #68  Posted September 30, 2012 How comparable is a 50 mm f/1.3 lens with a 50 mm f/1.13 I wonder? The wider aperture will include rays from very near the lens's outer edge, which may add significantly to its aberrations. Pete.  well if anything the new lens will have less aberrations- as it is f1.16...    Miyazaki has labelled it f1 on the front ring- rounding down - rather than up - perhaps being quite generous to the lens... perhaps it should be called an f1.2 50...  but then again if I am 38 years and ten months old... I am still 38... Link to post Share on other sites More sharing options...
farnz Posted September 30, 2012 Share #69 Â Posted September 30, 2012 well if anything the new lens will have less aberrations- as it is f1.16 ... Do you mean the f/1.16* lens will have fewer aberrations than f/1.13? If so I'd agree with you in principle but in practice I doubt we'd be able to see the difference. Â But if you meant that the f/1.16 will have fewer aberrations than the f/1.3 lens I disagree. Â Pete. *I'm not sure where the reference to f/1.16 came from since the thread's title refers to f/1.13 Link to post Share on other sites More sharing options...
jaques Posted September 30, 2012 Share #70  Posted September 30, 2012 sorry- i misread your post.  and the matter was confused further by the title of this thread- initially Leica rumors I think said it was f1.13 the lens is actually f1.16: 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/187582-new-m-mount-50mm-f113-coming/?do=findComment&comment=2129190'>More sharing options...
JeffoJeffo Posted October 1, 2012 Share #71  Posted October 1, 2012 MS 5cm f1.1 MC with Leica M-Monochorm.  This Japanese made lens is f1.1.....I had this for 2 weeks now and just had a chance to use it this weekend. Sharing some photos taken yesterday. 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/187582-new-m-mount-50mm-f113-coming/?do=findComment&comment=2129529'>More sharing options...
hillavoider Posted October 1, 2012 Share #72 Â Posted October 1, 2012 well if anything the new lens will have less aberrations- as it is f1.16... Â Â Â Miyazaki has labelled it f1 on the front ring- rounding down - rather than up - perhaps being quite generous to the lens... perhaps it should be called an f1.2 50... Â but then again if I am 38 years and ten months old... I am still 38... Â Ha Ha, thats dead right as i am 38 and 10 months old Link to post Share on other sites More sharing options...
wlaidlaw Posted October 1, 2012 Share #73 Â Posted October 1, 2012 Is not some of the confusion about the spec of the lens due to whether it is T1.16 or F1.13. It is my understanding that the F rating is purely a physical comparison of the effective diameter of the aperture against the focal length. The T rating also takes into account the absorption of light by the glass in the lens. To give an example (Brian - please correct me if I have not got this quite right), if you have an F1 lens and stop down to F1.4, in theory you halve the amount of light coming though the lens. In practice you may slightly less than halve, because the light is passing more directly through the lens glass at f1.4 than it was at f1, so less light is being absorbed. The T stops are adjusted so that T1.4 will be exactly half the light transmission of T1. The T number of a given lens is always slightly less than its f number. Â Wilson Link to post Share on other sites More sharing options...
jaques Posted October 1, 2012 Share #74 Â Posted October 1, 2012 Ha Ha, that's dead right as i am 38 and 10 months old 1973- great year to be born... dec 4- you? Â those samples look really good JeffoJeffo - shame you cant show us the colour version... Â How is the lens handling wise: focusing, aperture, etc? First impressions? Link to post Share on other sites More sharing options...
hillavoider Posted October 2, 2012 Share #75 Â Posted October 2, 2012 actually i added wrong, i'm january 74, but every month is important now!!! Link to post Share on other sites More sharing options...
JeffoJeffo Posted October 2, 2012 Share #76 Â Posted October 2, 2012 1973- great year to be born... dec 4- you? Â those samples look really good JeffoJeffo - shame you cant show us the colour version... Â How is the lens handling wise: focusing, aperture, etc? First impressions? Â Haha.....okok, will have it on m9p for s spin tmrw. @@ Â My first impression of this lens is quite good. It's quite light for f1.1. Focusing is quite easy...just that you have to screw the hood very tight so that you can hold the hood for focusing. Otherwise it's very easy to touch the aperture ring. For performance, with Leica M monochrom is very good as I can shoot under very very low light. Will see how it performs on M9p tmrw. Â Cheers.... Link to post Share on other sites More sharing options...
JeffoJeffo Posted October 4, 2012 Share #77  Posted October 4, 2012 Some shots using this MS 5cm f1.1 on M9p 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/187582-new-m-mount-50mm-f113-coming/?do=findComment&comment=2132412'>More sharing options...
giordano Posted October 4, 2012 Share #78  Posted October 4, 2012 Some shots using this MS 5cm f1.1 on M9p  Ugh! (but there's no accounting for taste, mine or anyone else's.) Link to post Share on other sites More sharing options...
wlaidlaw Posted October 4, 2012 Share #79 Â Posted October 4, 2012 Isn't that called "specular highlight bokeh". It is better than jagged as produced by the 50/1.4 ASPH Summilux but not as good as "creamy" produced by older Summilxes and the older Noctilux. Â Wilson Link to post Share on other sites More sharing options...
hillavoider Posted October 4, 2012 Share #80 Â Posted October 4, 2012 thanks for posting the images, i don't mind the bokeh and looks sharper then my voigtlander f1.1 Â were they taken at 1.1? Link to post Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.