Results 1 to 5 of 5

Thread: Shutter and Aperture for B&L Zeiss Anastigmat Series 11A

  1. #1

    Shutter and Aperture for B&L Zeiss Anastigmat Series 11A

    I received what appear to be parts of a lense for a wooden 8x10 view camera: A board with a single lense element mounted to it and a separate single element lense. It appears that they could have been joined - I'm guessing with a shutter and aperture component - because, when I place them together, a clear image is provided on the ground glass. The front lense is labeled Bausch & Lomb Optical Co. Rochester NY, 10x12 Zeiss-Anastigmat. Series 11A Pat. Jan 13, 1891. Any thoughts or information on the original configuration of this lense will be appreciated.

  2. #2

    Join Date
    Sep 2003
    Location
    Harbor City, California
    Posts
    1,748

    Shutter and Aperture for B&L Zeiss Anastigmat Series 11A

    Could it be that there is an illegible "V" in front of the "IIA"? Zeiss did make a series II, but I don't know of a IIA nor do I know of B&L making any of this series. Are there any markings on the rear lens? If it should turn out to be a Series VIIa, that is a pre-1900 version of the lens which was called Convertible Protar after 1900. You are right in thinking that a part containing a diaphragm, and perhaps a shutter, is missing.

  3. #3
    All metric sizes to 24x30 Ole Tjugen's Avatar
    Join Date
    Mar 2002
    Location
    Norway
    Posts
    3,377

    Shutter and Aperture for B&L Zeiss Anastigmat Series 11A

    The Zeiss Serie IIB was an early name for the Tessar f:4.5, so I guess there must have been a IIA at one time?

  4. #4

    Join Date
    Sep 2003
    Location
    Harbor City, California
    Posts
    1,748

    Shutter and Aperture for B&L Zeiss Anastigmat Series 11A

    Ole, thanks for your remainder about the Tessar designation. I just found out that I had overlooked an early Zeiss Anastigmat Series "IIa". It was an f8 asymmetrical type with a cemented doublet front cell and a cemented triplet rear cell. The existence of this lens probably explains why the f6.3 Tessars were designated "IIb".



    Daniel, if the reflections in your front cell are substantially different from those of the rear, it probably is one of these early lenses.



    You might luck out and find out that the cells came from an early B&L "Iris Diaphragm" shutter. These show up on eBay fairly often. They took cells threaded 22, 28, 35 or 45mm. It would be nice if the lens could be made complete, since it must be a rather uncommon example.

  5. #5

    Shutter and Aperture for B&L Zeiss Anastigmat Series 11A

    First: I'd like to thank both of you for your responses. Next: It is definately Series IIA (there is no "V" - and I understand now that it isn't 11A). If we number the exposed lense surfaces from 1 to 4, starting with the outermost, the reflections are as follows: 1. Right-side up, 2. Upside-down, slight double image about 1/3x difference in size, 3. Upside-down, slight double image about 2x difference in size, 4. Right-side up. The thred diameters are 65mm. The back cell seems to have a yellowish crazed appearance around the perimeter on an internal surface while the front cell doesn't. I'd like to find a shutter as I'm compelled to see if this nearly complete camera (R.O.C. View Camera) will actually work. Thank you again for your help.

Similar Threads

  1. focal length of #4 Zeiss Kodak Anastigmat?
    By Dan Fromm in forum Lenses & Lens Accessories
    Replies: 3
    Last Post: 10-Dec-2006, 09:58
  2. Cooke Series II -Anastigmat lens-205mm.f4.5-13x18cm
    By Manuel Gomes Teixeira in forum Cameras & Camera Accessories
    Replies: 2
    Last Post: 26-Mar-2004, 08:36
  3. Turner Reich Anastigmat f6.8 Series II 4x5 lens-what is it?
    By Jon Wilson in forum Lenses & Lens Accessories
    Replies: 6
    Last Post: 27-Jan-2004, 07:27
  4. bausch & lomb zeiss convertible anastigmat 5 in.-9 in. f 6.3
    By domenicco in forum Lenses & Lens Accessories
    Replies: 1
    Last Post: 28-Mar-2002, 03:16
  5. Scals of Zeiss Protar aperture
    By Cheng Lu in forum Lenses & Lens Accessories
    Replies: 4
    Last Post: 18-Jul-1999, 03:24

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
  •