Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 57,951   Posts: 1,194,941   Online: 969
      
Results 1 to 3 of 3
  1. #1
    pellicle's Avatar
    Join Date
    May 2006
    Location
    Finland
    Shooter
    4x5 Format
    Posts
    370
    Images
    16

    lens (resolution) testing: are there standard methods?

    Hi

    I'm thinking of testing my Fujinon SW 90, after reading Kerry Thalmann's tests that I'd like to see what my lens comes up as (hey, its rainy, its autumn and I live in Finland where there is really nothing much happening this time of year).

    So I'd like to know (if anyone knows) if such tests are conducted at infinity or some standard distance based upon focal length?

    Thanks
    Theory: you understand why it should work but it doesn't
    Practice: it works but you have no idea how
    Here theory and practice meet, things don't work and I don't know why
    Homepages: here Blog: here

  2. #2

    Join Date
    Nov 2004
    Location
    Italia
    Shooter
    Multi Format
    Posts
    4,680
    Doesn't Kerry describe the method they used? Do the same then you can compare.

    But at infinity which is a multiple of focal length.

  3. #3
    pellicle's Avatar
    Join Date
    May 2006
    Location
    Finland
    Shooter
    4x5 Format
    Posts
    370
    Images
    16
    Quote Originally Posted by Nick Zentena View Post
    Doesn't Kerry describe the method they used? Do the same then you can compare.

    But at infinity which is a multiple of focal length.
    Nick

    your right he does (I missed it in the fine print at the bottom)

    • All lenses tested at 1:20 magnification (a typical working distance).
    Theory: you understand why it should work but it doesn't
    Practice: it works but you have no idea how
    Here theory and practice meet, things don't work and I don't know why
    Homepages: here Blog: here



 

APUG PARTNERS EQUALLY FUNDING OUR INFRASTRUCTURE:


 
                     

Contact Us  |  Support Us!  |  Advertise  |  Site Terms  |  Archive  —   Search  |  Mobile Device Access  |  RSS  |  Facebook  |  Linkedin