How can you collimate FSU lenses to a Bessa R?

[Spider67]

Hi Folks,

Was not so sure where to post as it's a Bessa R but FSU lenses...😕
I made a test by taking pics of a newspaper page at minimum distance and a wide open aperture (Jupiter 8's fs/Industar 61's at 2,8 and Industar 22 at 3.5).
It seems the only lens I could use is the Industar 61 of ym Fed 3,
The Jupiters especially were rather disappointing I tried a chrome model from my Zorki 4 old model with strap lugs and two black ones from my lugless 4 and my 4K. Seems that I have to collimate them. Where to beginn? Is there a site covering that topic, or do you know someonbe who can do it?
I read about Brian but I am not so sure if he still accepts lenses for collimation.
Thanks in advance.

 

[Valkir1987]

I always use a matt screened peice of glass or an old groundglass from a broken SLR to check the lens for infinity with the back open and the shutter on B. I had no problems so far so I did not need to adjust the lens or the mount.
But you can check several lenses on one camera to see if it is the camera or the lens, without spoiling film.

 

[brachal]

You could try Kim Coxon's site:

http://pentax-manuals.com/

I think under the repairs page.