Page 2 of 2 FirstFirst 12
Results 11 to 14 of 14

Thread: Goerz Dagor speed mismatch - fake or rare?

  1. #11

    Join Date
    Aug 2013
    Location
    Chicago
    Posts
    1,856

    Re: Goerz Dagor speed mismatch - fake or rare?

    Quote Originally Posted by Dan Fromm View Post
    <obscenities deleted>

    I've just added a spreadsheet with the scales and formulas behind them to the list. If you need help finding the list, try the stickies in the lens section.
    <obscenities back at you deleted>
    Thanks for the assistance.
    Thanks, but I'd rather just watch:
    Large format: http://flickr.com/michaeldarnton
    Mostly 35mm: http://flickr.com/mdarnton
    You want digital, color, etc?: http://www.flickr.com/photos/stradofear

  2. #12

    Join Date
    Dec 2017
    Posts
    115

    Re: Goerz Dagor speed mismatch - fake or rare?

    Dear forum friends,

    Thanks a lot for all your great insights. Now it is obvious that this is a true Goerz and just used the f/stop system different to what is used today.
    Still confusing that the two f/stops do not match and that they show different f/stops from different systems.
    My one shows 4.6 and then exactly like in the table from the link followed by 6, 12, 24, 48, 92, 192 and 384.
    Now to remember the related f/stops which I am used to will take some time but I understand the logic and will save the table on the phone, so I can look it up when needed.

    So wonderful from you to help me out. I am very grateful.

    Have a nice start in the week, Miguel

  3. #13

    Join Date
    Dec 2001
    Location
    NJ
    Posts
    8,483

    Re: Goerz Dagor speed mismatch - fake or rare?

    Miguel, if you go to the list and look at the spreadsheet, you'll find the formula. Rearrange it and you'll be able to calculate the f/stops that correspond to the engraved numbers.

  4. #14

    Join Date
    Dec 2017
    Posts
    115

    Re: Goerz Dagor speed mismatch - fake or rare?

    Yes, Thanks a lot Dan. I saved your list already as well :-)

Similar Threads

  1. Goerz Dagor 210mm lens at one speed
    By Anton Lukoszevieze in forum Lenses & Lens Accessories
    Replies: 3
    Last Post: 30-Nov-2014, 17:03

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
  •