Results 1 to 3 of 3

Thread: Has anyone modified their CB-7 Beseler enlarger for 5x7 ?

  1. #1
    Eric Woodbury
    Join Date
    Dec 2003
    Posts
    1,206

    Has anyone modified their CB-7 Beseler enlarger for 5x7 ?

    I have two enlargers that I'm using: CB7 and 45M. The latter is heavily modified with the Ross 8x10 adapter plus extra tilts / swings for easy (easier) alignment. Also changed the negative stage to hold glass negative holders. The CB7 is dedicated to roll-film negs. I'm considering giving the CB7 more duties by adding an LED head that can handle 5x7. To do this, I'd remove the upper bellows and its support for the coldlight (or condenser). After that I'm a bit fuzzy, but to get the 5x7 image to clear the hole at the negative stage, there would need to be another level above, much like the 8x10 adapter.

    Have any of my fellow CB7 users ripped into their enlarger with similar modifications?

    Is it true that some 5x7 CB7s were made?

    Thanks in advance.

    Film is best.

    EW

  2. #2

    Join Date
    Sep 1998
    Location
    GA
    Posts
    11,218

    Re: Has anyone modified their CB-7 Beseler enlarger for 5x7 ?

    Quote Originally Posted by Eric Woodbury View Post
    I have two enlargers that I'm using: CB7 and 45M. The latter is heavily modified with the Ross 8x10 adapter plus extra tilts / swings for easy (easier) alignment. Also changed the negative stage to hold glass negative holders. The CB7 is dedicated to roll-film negs. I'm considering giving the CB7 more duties by adding an LED head that can handle 5x7. To do this, I'd remove the upper bellows and its support for the coldlight (or condenser). After that I'm a bit fuzzy, but to get the 5x7 image to clear the hole at the negative stage, there would need to be another level above, much like the 8x10 adapter.

    Have any of my fellow CB7 users ripped into their enlarger with similar modifications?

    Is it true that some 5x7 CB7s were made?

    Thanks in advance.

    Film is best.

    EW
    No 57 CB7 enlargers were made. A version of the M series was made in 57.

    Why did you modify the M for glass carriers instead of just getting a Beseler glass carrier?

  3. #3

    Join Date
    Sep 2014
    Location
    North Dakota
    Posts
    671

    Re: Has anyone modified their CB-7 Beseler enlarger for 5x7 ?

    Why not look at how Beseler set up the 5x7 head and model after it with your LED lighting? They were 45M enlargers with a cold light head on top. Not sure if the rest was modified but they did take a full 5x7 negative and worked well.
    I tend to procrastinate on stuff. One of these days I'll do something about it.

Similar Threads

  1. Modified Elwood (?) 8x10 enlarger
    By David McReynolds in forum Darkroom: Film, Processing & Printing
    Replies: 5
    Last Post: 1-Jan-2012, 12:57

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •