Results 1 to 5 of 5

Thread: 159mm Wollensak in Toyo Recessed Lensboard

  1. #1

    Join Date
    Nov 2005
    Location
    Rondo, Missouri
    Posts
    2,125

    159mm Wollensak in Toyo Recessed Lensboard

    Before I spend the money on mounting this lens for my 8x10 Toyo, does anyone know if the Toyo recessed lensboard will cause vignetting with the 159mm F9.5 Wollensak Series III WA?
    Michael W. Graves
    Michael's Pub

    If it ain't broke....don't fix it!

  2. #2
    Moderator Ralph Barker's Avatar
    Join Date
    Sep 1998
    Location
    Rio Rancho, NM
    Posts
    5,034

    159mm Wollensak in Toyo Recessed Lensboard

    I don't know about the geometry of the 159 Wolly, but board measurements might help. The recessed 159mm Toyo board I have has a total depth of about 40mm, with 25mm square to the inside flat surface, then an angled section out to the front surface. The inside flat surface measures about 115mm square.

  3. #3

    Join Date
    Dec 2004
    Posts
    144

    159mm Wollensak in Toyo Recessed Lensboard

    I mounted a Protar V in a recessed lensboard without any vignetting, but it is a slightly longer lens; about 190mm I believe.

  4. #4

    Join Date
    Aug 2000
    Location
    California
    Posts
    3,908

    159mm Wollensak in Toyo Recessed Lensboard

    The Wollensak 159 intercepts an angle of 100 degrees wide open. You can use this with the measurement of the depth of the board to determine if vignetting will occur. I suspect that it is very close.

    My preference is a flat lens board with this lens and then I know I will not have a problem.

  5. #5

    Join Date
    Dec 2004
    Posts
    144

    159mm Wollensak in Toyo Recessed Lensboard

    A flat lens board is ideal, if it is possible. The reason I ended up putting my lens in a recessed board is that without it bellows compression and vignetting by the bellows was a problem. The recessed board, by effectively moving the lens back into the bellows about 50mm solves the problem on my camera.

Similar Threads

  1. Age of Wollensak 6¼" (159mm) Extreme W.A.
    By Kerry L. Thalmann in forum Lenses & Lens Accessories
    Replies: 82
    Last Post: 7-Aug-2012, 07:01
  2. Wollensak 159mm f12.5
    By Sorin Varzaru in forum Lenses & Lens Accessories
    Replies: 5
    Last Post: 24-Sep-2011, 16:40
  3. Wollensak 159mm F 12.5
    By Steve Sherman in forum Cameras & Camera Accessories
    Replies: 11
    Last Post: 11-Jan-2005, 22:15
  4. Recessed Lensboard
    By cp in forum Cameras & Camera Accessories
    Replies: 3
    Last Post: 20-Feb-2002, 22:29
  5. Recessed lensboard for 6x9?
    By Thomas Douglass in forum Darkroom: Film, Processing & Printing
    Replies: 1
    Last Post: 15-Oct-2001, 19:09

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
  •