Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 70,283   Posts: 1,534,979   Online: 975
      
Page 3 of 3 FirstFirst 123
Results 21 to 22 of 22
  1. #21
    glbeas's Avatar
    Join Date
    Sep 2002
    Location
    Roswell, Ga. USA
    Shooter
    Multi Format
    Posts
    3,307
    Images
    109
    Right, theres a bleed valve and a vacuum gauge on most, my NuArc has it. You can set the vacuum from full to nothing with a twist of the valve.
    Gary Beasley

  2. #22

    Join Date
    Apr 2006
    Location
    Aurora, OH
    Shooter
    ULarge Format
    Posts
    76

    Vacuum frame for 20x24

    A vacuum frame is a must for 20x24 for any semblance of image quality. Sandy and Nicholas explained it well. For those of you who think a clip or split back frame is OK try placing a 1/2" wide stouffer step wedge across the split or in the middle of a clip frame and expose it onto a piece of coated paper. I think you'll be sorely dissapointed. You'll see very clearly whether the frame is holding the negative and sensitized paper in contact. This is the test I have any student do who brings their own contact frame to a workshop. I've seen very expensive frames fail the test.

    Quote Originally Posted by Falkenberg View Post
    Does anyone know about who produces a 20x24" contactprinting frame ?

Page 3 of 3 FirstFirst 123


 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



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