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Comparison C Sonnar T* 1,5/50 & Summilux-M 50mm f/1.4 ASPH?


keithlaban.co.uk

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If your concern is BOKEH, there is no question the answer is Zeiss. Take a look on my Flickr account. And go to the Sonnar section

Thanks! I must admit.... That Sonnar really has a MOST beautiful bokeh in my eyes. Even how hard I would like to believe that Leica lenses pretty much "tops" on all/most properties...

 

Regards, Stein

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Thanks, Siegfried.

 

I bought the Sonnar for some upcoming people projects and so far I'm delighted with the OOF qualities and isolation that this lens delivers.

 

My question was prompted by the thought that the Summilux could serve as an all purpose lens with good bokeh and yet much sharper when stopped down. But, hell, at the comparatively low price of the Sonnar it'll be a keeper with the possible addition of another 50mm in the future. 

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Thanks, Siegfried.

 

I bought the Sonnar for some upcoming people projects and so far I'm delighted with the OOF qualities and isolation that this lens delivers.

 

My question was prompted by the thought that the Summilux could serve as an all purpose lens with good bokeh and yet much sharper when stopped down. But, hell, at the comparatively low price of the Sonnar it'll be a keeper with the possible addition of another 50mm in the future.

I don't know if it's really that comparatively low in price; if I were to part with US$1000, I might opt for ta nice 50 Rigid. But for my money, if I were to use it for portraits, would have focus optimized for f/1.5. Otherwise it will shift until 2.8 and the bokeh you cherish is dissipated.

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I don't know if it's really that comparatively low in price; if I were to part with US$1000, I might opt for ta nice 50 Rigid. But for my money, if I were to use it for portraits, would have focus optimized for f/1.5. Otherwise it will shift until 2.8 and the bokeh you cherish is dissipated.

 

Not with an EVF it won't :)

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Why, when I can get an M240 for every focus shifting lens and use the rangefinder for the rest?

The A7R will let you adjust the centre zoom in to different locations. Meaning it can not only counter for focus shift, but also field curvature.

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Then you might as well get an a7** for every focus shifting lens and forget about the rangefinder altogether.

The Sonnar formula lenses sit much closer to the image plane compared with most lenses. It does much better on a Leica Digital sensor, which is optimized for such lenses.

 

With a little practice, you learn to deal with focus shift: focus with the RF then back off a little, or leave the RF image slightly off perfect coincidence.

 

As much as I like my C-Sonnar,

 

21912875900_9c3c8d8025_o.jpgWindow Shades by fiftyonepointsix, on Flickr

 

I like the original Sonnars even more. I have a collection of Sonnars and Sonnar formula Jupiters, Nikkors, Canons, Tanars, ... going from 1934 to the C-Sonnar. 

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http://www.the.me/lesson-in-history-the-magic-of-the-value-for-money-zeiss-c-sonnar-50mm-f1-5/

 

The above article has some explanation of focus shift with the C-Sonnar, and examples.

 

Below is a write-up on the original Sonnars.

 

http://www.the.me/unique-blend-of-compactness-super-speed-and-perfect-imperfections-1930s-sonnar-lenses-on-the-leica-m9-and-m-monochrom/

 

Focus shift takes a little getting used to. Field curvature on the C-Sonnar is greatly reduced compared with the original lenses. Field curvature is greatly reduced in the reformulated Sonnars of the 1940s, but those are rare and one in mint condition will cost almost as much as a new C-Sonnar.

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I find the EVF to be adequate, whereas I loath the Sony A7 cameras.

 

 

The main issue with the Olympus EVF is the lack of dynamic range and contrast, it gives you a very inexact impression of the exposure and final image.

However, compared to the A7 EVF I find it to have less noticeable aliasing, it spite of lower resolution. IMHO, both EVFs are far from ideal.

 

 

As you can see here, the Summilux ASPH has superior, smoother and less distracting bokeh. 

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http://www.the.me/lesson-in-history-the-magic-of-the-value-for-money-zeiss-c-sonnar-50mm-f1-5/

 

The above article has some explanation of focus shift with the C-Sonnar, and examples.

 

Below is a write-up on the original Sonnars.

 

http://www.the.me/unique-blend-of-compactness-super-speed-and-perfect-imperfections-1930s-sonnar-lenses-on-the-leica-m9-and-m-monochrom/

 

Focus shift takes a little getting used to. Field curvature on the C-Sonnar is greatly reduced compared with the original lenses. Field curvature is greatly reduced in the reformulated Sonnars of the 1940s, but those are rare and one in mint condition will cost almost as much as a new C-Sonnar.

Thank you for the link to how to shim a Jupiter-3 lens. I tried this with a Jupiter-8. Using kitchen aluminium foil I got this result (before-after, three layers of aluminium foil. The index for the aperture went from 2,0 to between 2,8 and 2,0 with one layer and so on. I ended up between 2,8 and 4,0):

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!

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