Page 5 of 5 FirstFirst ... 345
Results 41 to 43 of 43

Thread: 750mm Apo-Germinar

  1. #41

    Join Date
    Mar 2007
    Posts
    1,074

    Re: 750mm Apo-Germinar

    Quote Originally Posted by Joerg Krusche View Post
    Asher,

    no problem to focus that lens .. great performer at longer distances due to coverage..other than tele designs.. and resolution.. although designed for 1:1 .. due to symmetrical design vg from 1:1 to infinity.. this lens and siimilar ones will give you more resolution than you may be able to handle or you may actually need on the larger formats..working with these long ones is fun.. may need an adequate scanner to exploit and manage amount of information of even standard LF formats.
    Joerg,

    Thanks for your helpful response! Have a Topaz II and love wall to make size prints viewable for detail at 25 cm.


    Quote Originally Posted by Joerg Krusche View Post
    Why would you want to focus at 4 feet ? ..extension is quite a bit .. a shorter focal length will cover and be easier to work with ..
    The distance is what I use for portraits in my studio. That's where I want to use the 750mm for ULF. I have to translate from 35 mm cameras and 6x6., my areas of comfort. (8x10 landscapes and still life with the 150 mm SSXL and portraits with the PS 945 on 8x10 is my limited LF experience to date.) So this 750mm lens would be a very wide angle on a direct to ULF wall print. I'll try first with a 600 mm lens. The extensions I'll just have to buy and these are available for my camera.

    I also have a 450 Apo Germinar, but the 750 mm is interesting to me because it has been used very successfully by another photographer.

    Asher

  2. #42

    Re: 750mm Apo-Germinar

    Asher,

    keep up your enthusiasm !! .. the Topaz II is a beautiful scanner but it has 8000 pixels across the moving bed .. that is 4000 dpi max (in an ideal world 4000 linepairs) for the short side of your negative .. for your wall sized prints to be looked at from 25 cm to discover even more details .. there may be just a linepair per mm .. for me at my age that is more than enough but perhaps not for you ...

    joerg

  3. #43

    Join Date
    Mar 2007
    Posts
    1,074

    Re: 750mm Apo-Germinar

    Quote Originally Posted by Joerg Krusche View Post
    Asher,

    keep up your enthusiasm !! .. the Topaz II is a beautiful scanner but it has 8000 pixels across the moving bed .. that is 4000 dpi max (in an ideal world 4000 linepairs) for the short side of your negative .. for your wall sized prints to be looked at from 25 cm to discover even more details .. there may be just a linepair per mm .. for me at my age that is more than enough but perhaps not for you ...

    joerg
    Hi Joerg,

    I appreciate the encouragement! There's a lot work out. For the 750 mm lens, I plan to hang Ilfochrome paper on the wall of a camera obscura and process them n one step. So no scanning. For smaller nagatives, the Topaz will be fine and the best will be drum scanned.

    Asher

Similar Threads

  1. 600mm and 750mm APO Germinar - Actual Coverage?
    By Kerry L. Thalmann in forum Cameras & Camera Accessories
    Replies: 8
    Last Post: 27-Jun-2011, 11:58
  2. All those Docter Germinar lenses ...
    By Matus Kalisky in forum Lenses & Lens Accessories
    Replies: 3
    Last Post: 20-Sep-2007, 15:24
  3. Schneider APO Tele Xenar 600/800mm Convertible
    By Eric Leppanen in forum Cameras & Camera Accessories
    Replies: 6
    Last Post: 6-Nov-2005, 22:43
  4. Rodenstock Apo and non-apo Rodagon enlarging lenses
    By jose angel in forum Darkroom: Equipment
    Replies: 5
    Last Post: 10-May-2004, 11:41
  5. Anyone using Apo Germinar lenses?
    By Michael_527 in forum Lenses & Lens Accessories
    Replies: 1
    Last Post: 26-Aug-2000, 21:47

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
  •