Results 1 to 6 of 6

Thread: Wollensak Velostigmat Series II 12" inch f4.5 diaphragm shape

  1. #1

    Join Date
    Dec 2006
    Location
    Galeton, PA
    Posts
    59

    Wollensak Velostigmat Series II 12" inch f4.5 diaphragm shape

    Is the aperture when stopped down look like this? It's a very odd shape.




    Click image for larger version. 

Name:	IMG_5024.jpg 
Views:	36 
Size:	142.3 KB 
ID:	216005Click image for larger version. 

Name:	IMG_5025.jpg 
Views:	27 
Size:	131.7 KB 
ID:	216004

  2. #2

    Join Date
    Jul 2020
    Posts
    43

    Re: Wollensak Velostigmat Series II 12" inch f4.5

    i'd say the blades are sticking
    " The man who invented the camera has a lot to answer for! " Hercule Poirot

  3. #3
    Jon Shiu's Avatar
    Join Date
    Nov 2003
    Location
    Mendocino, California
    Posts
    1,294

    Re: Wollensak Velostigmat Series II 12" inch f4.5 diaphragm shape

    Normal for "Studio" shutter.
    my black and white photos of the Mendocino Coast: www.jonshiu.com

  4. #4
    Mark Sawyer's Avatar
    Join Date
    Jul 2004
    Location
    Stuck inside of Tucson with the Neverland Blues again...
    Posts
    5,983

    Re: Wollensak Velostigmat Series II 12" inch f4.5 diaphragm shape

    Looks like an old Studio Shutter. Yes, their blades do get sticky and out-of-alignment.
    "I love my Verito lens, but I always have to sharpen everything in Photoshop..."

  5. #5

    Join Date
    Dec 2013
    Location
    Washington, DC
    Posts
    235

    Re: Wollensak Velostigmat Series II 12" inch f4.5 diaphragm shape

    For a Studio shutter, that’s above average.

    I find that any asymmetry is barely visible at normal portrait taking apertures (f/16 and wider), and I have never noticed an ill-effect on the film or print.

  6. #6

    Join Date
    Aug 2018
    Posts
    213

    Re: Wollensak Velostigmat Series II 12" inch f4.5 diaphragm shape

    Mine looks the same. Spent $90 on a conclusion that new parts needs to be made in order to fix the shutter.

    Sent fra min SM-G975F via Tapatalk

Similar Threads

  1. Proper shutter for 9 1/2 inch Wollensak Velostigmat series 2?
    By adamc in forum Lenses & Lens Accessories
    Replies: 6
    Last Post: 29-Mar-2012, 08:36

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
  •