Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 68,704   Posts: 1,482,712   Online: 929
      
Page 1 of 2 12 LastLast
Results 1 to 10 of 17
  1. #1
    Mustafa Umut Sarac's Avatar
    Join Date
    Oct 2006
    Location
    İstanbul - Türkiye
    Shooter
    35mm RF
    Posts
    3,413
    Images
    104

    BW Paper, BW Print optimized Color Negatives either Analog or Digital

    AFAIK only colored bw film negatives are stained Pyro ones. And only BW paper optimized print systems are Zone System and Beyond the Zone System. But there is no trace of paper optimized color digital or analog negative for BW prints.

    And I dont know if there is a panchromatic paper available. May be all papers are orthochromatic and they act to shades of blue and green printed digital,analog negatives more effectively. I am starting to research of color shades of Pyro Negatives and effective use of these shades in color printed digital or analog negatives.

    I am defending to mask various parts of the image and shade with different colors and print color digital or analog negatives for contact print.

    I will try to feed that article referencing collected new posts at APUG forums. Its seems to me that is a new idea and I found myself forced to post that article asap.

    I will try to find color sensivity curve of an BW photographic paper and engineer an color negative here with APUG members.

    In few days , there will be more posts here from me and awaiting your ideas.

    Mustafa Umut Sarac
    Istanbul

  2. #2

    Join Date
    Jun 2013
    Location
    Estonia
    Shooter
    Multi Format
    Posts
    146
    Quick google search revealed that there ARE panchromatic papers - Kodak used to make one, Ilford still makes three of them.
    http://www.ilfordphoto.com/products/...Papers+Digital
    http://www.apug.org/forums/forum42/1...tic-paper.html
    Honestly, I fail to see the whole point of this. Spectral sensitivity curves of various papers are widely available.

  3. #3
    Mustafa Umut Sarac's Avatar
    Join Date
    Oct 2006
    Location
    İstanbul - Türkiye
    Shooter
    35mm RF
    Posts
    3,413
    Images
    104
    http://www.ultrafineonline.com/ilrcdibwpafo2.html

    Can anyone wish to help me to find spectral curve of that paper ?
    Thank you vpooler.

    Umut

  4. #4
    Hexavalent's Avatar
    Join Date
    Nov 2009
    Location
    Ottawa, Ontario, Canada
    Shooter
    Multi Format
    Posts
    528
    Blog Entries
    3
    Quote Originally Posted by Mustafa Umut Sarac View Post
    http://www.ultrafineonline.com/ilrcdibwpafo2.html

    Can anyone wish to help me to find spectral curve of that paper ?
    Thank you vpooler.

    Umut

    It may be found on Ilford's website.
    - Ian

  5. #5

    Join Date
    Jun 2013
    Location
    Estonia
    Shooter
    Multi Format
    Posts
    146
    http://www.ilfordphoto.com/Webfiles/...1450482628.pdf literally the first result in google

  6. #6
    Mustafa Umut Sarac's Avatar
    Join Date
    Oct 2006
    Location
    İstanbul - Türkiye
    Shooter
    35mm RF
    Posts
    3,413
    Images
    104

    Ilford Gallerie Panchromatic Digital Paper Fact Sheet

    Here is the attached spectral curve .
    Attached Files

  7. #7
    Mustafa Umut Sarac's Avatar
    Join Date
    Oct 2006
    Location
    İstanbul - Türkiye
    Shooter
    35mm RF
    Posts
    3,413
    Images
    104

    Ilfospeed Panchromatic Digital Paper Paper

    Ilfospeed Digital Paper Curves
    Attached Files

  8. #8
    Mustafa Umut Sarac's Avatar
    Join Date
    Oct 2006
    Location
    İstanbul - Türkiye
    Shooter
    35mm RF
    Posts
    3,413
    Images
    104

    Ilfospeed Panchromatic Digital Paper

    Ilfospeed Digital Paper Curves
    Attached Files

  9. #9
    Mustafa Umut Sarac's Avatar
    Join Date
    Oct 2006
    Location
    İstanbul - Türkiye
    Shooter
    35mm RF
    Posts
    3,413
    Images
    104
    Black and White prints can be made directly from colour
    digital files although the results are often unsatisfactory
    unless the file is first converted to greyscale. We would
    therefore recommend colour files be converted to
    Greyscale, prior to printing. The smaller files made by
    discarding the colour information are also much quicker to
    RIP and write. There is another advantage to doing this,
    as some colour originals printed straight to Black & White
    do not make suitable or interesting images without some
    adjustment to their contrast or density.

    Above statement comes from attached ilford paper. If we would print bw negatives on panchro bw papers , what is the point of making panchro bw paper ? Am I missing something ?

    Umut
    Last edited by Mustafa Umut Sarac; 01-05-2014 at 11:37 AM. Click to view previous post history.

  10. #10
    eddie's Avatar
    Join Date
    Jul 2005
    Location
    Northern Virginia
    Shooter
    Multi Format
    Posts
    1,304
    Images
    188
    They are not referring to negatives. They are talking about files.

Page 1 of 2 12 LastLast


 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



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