Results 1 to 6 of 6

Thread: Angulon 18.5cm and 25cm combined lens in barrel

  1. #1

    Join Date
    Feb 2001
    Location
    Nara, Japan
    Posts
    1,119

    Angulon 18.5cm and 25cm combined lens in barrel

    I got this lens a couple of days ago. It consists of 18.5cm and 25cm cells with the same serial number on both cells. I mounted it on a 5x7 camera, and it appears to cover fully. The focal length of the combined cells is ~115mm, measured from the lens board to the ground glass. I will mount it on a larger camera in a day or so and find out whether it covers. The cell screws into a regular Copal 1 retaining flange.

    I have searched the internet, and can't seem to find any information. Does anyone know?

    Thanks in advance,
    Kumar




  2. #2

    Join Date
    Apr 2012
    Location
    Australia
    Posts
    101

    Re: Angulon 18.5cm and 25cm combined lens in barrel

    Angulon f6.8 lenses are convertible and can use the front and back lens separately to obtain 3 focus length.
    The focus length of the front lens is twice of the combined focus length, the rear is 1.5 times.
    Some early angulon lenses were marked with single lens focus length as yours.

  3. #3

    Join Date
    Feb 2001
    Location
    Nara, Japan
    Posts
    1,119

    Re: Angulon 18.5cm and 25cm combined lens in barrel

    Thanks. The lenses aren't marked with the f/number, just Angulon 25cm / 18.5 cm and the same serial number on both cells.
    Also, while the flange for the entire lens is a Copal 1 size, the individual cells don't fit into that shutter.

    Kumar

  4. #4

    Join Date
    Jun 2004
    Location
    Melbourne, Australia
    Posts
    539

    Re: Angulon 18.5cm and 25cm combined lens in barrel

    I've got a catalog from 1931 which includes a table for converting Angulons. The 120mm Angulon has a 250mm front element and 185mm rear element so i guess that is your lens.

  5. #5
    Moderator
    Join Date
    Jan 2001
    Posts
    7,482

    Re: Angulon 18.5cm and 25cm combined lens in barrel

    Page 9 of the 1934 Schneider catalog on the Camera Eccentric website has the details as well.

  6. #6

    Join Date
    Feb 2001
    Location
    Nara, Japan
    Posts
    1,119

    Re: Angulon 18.5cm and 25cm combined lens in barrel

    Thanks, Paul and Oren. That answers my questions.

    Kumar

Similar Threads

  1. Tessar 1:4,5 F=25cm *Fliegertruppe* lens repair.
    By Cheffalo in forum LF DIY (Do It Yourself)
    Replies: 7
    Last Post: 7-Mar-2014, 15:44
  2. Older Angulon Barrel (?) Lens
    By Ken Munn in forum Lenses & Lens Accessories
    Replies: 1
    Last Post: 21-Sep-1999, 14:12

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
  •