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Color-Skopar X 50mm question
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PostPosted: Wed Sep 11, 2019 4:07 pm    Post subject: Color-Skopar X 50mm question Reply with quote

I have this lens in DKL mount. What do you think about its performance?
My copy is not good at f/2.8, kind of fuzzy and worse than my Domiplan 50mm. But has good sharpness at f/8.
Is the Domiplan supposed to be better?


PostPosted: Fri Sep 13, 2019 4:08 pm    Post subject: Reply with quote

The Color Skopar (with or without an X, that doesn't make a difference) 50/2,8 is a Tessar construction, four lenses in three groups, and it owns the advantages and disadvantages of this construction.

In the centre it is sharp and contrasty from f/2,8, both on FF and on APS.
The edges are a different thing. At f/2,8 they are not usable, and you have to stop down to f/5,6 or f/8 for sharp edges.

I don't know the Domiplan, so I can't compare.

I don't use the Color Skopar often, but only because I normally use the Rodenstock Ysarex 50/2,8, also a Tessar construction, whose Bokeh I like better. The sharpness of the two is the same.

Here are some photos taken with the color skopar.


That was with f/5,6 (probably) or f/8.



Taken with f/5,6.



This is wide open f/2,8 with the focus on the top of the gate.

Here is a detail from that photo (the centre; the edges are not usable):



PostPosted: Fri Sep 13, 2019 4:23 pm    Post subject: Reply with quote

The sharpest aperture of the skopar 2,8/50 is un the range of F/8-11.

The X versión is the first in DKL mount. The latter is without the X.

The Tessar 2,8/50 for the Icarex cameras should be actually the Skopar.

In anyway the DKL is by far better than the RF version.

Very good lens at F/11.

Creamy colors

See of you want

http://www.klassik-cameras.de/Bessa_RF_histo_dt.html


PostPosted: Tue Sep 17, 2019 11:22 pm    Post subject: Reply with quote

Thanks for the samples, looks similar to what I get. Stopped down does indeed look good. About "creamy colors" there is a hard to define look to it that sets it apart from newer more advanced lenses when stopped down.

There is probably nothing wrong with my lens. I guess some Cooke triplets can just be really good.



#1 f/2.8


#2 around f/5.6


#3 Focus plane test


#4 2.8 crop. The "fuzzyness"