Results 1 to 7 of 7

Thread: Reciprocity failure and digital camera

  1. #1
    Senior Member denniskee's Avatar
    Join Date
    Oct 2003
    Location
    bukit batok
    Posts
    5,468

    Default Reciprocity failure and digital camera

    Hi guys, we know that film will suffer reciprocity failure when doing long exposure, but what about digital photograhy? does CCD & CMOS have this problem too?
    photography makes one sees things from all angles.

  2. #2
    Senior Member
    Join Date
    Dec 2003
    Location
    Gim Boon Tai
    Posts
    2,909

    Default

    I don't think reciprocity failure has been reported on digital sensors before, no to sure also. Maybe someone can confirm this.
    If you understand my works, it's photography. If you don't, it's art.
    SplutterPhotography|flickr

  3. #3

    Default

    No such problem on DSLR .. IIRC from my basic photography course

  4. #4

    Default

    nope, not affected. Maybe hot pixels, if any, will show up when exposed for 10 min

  5. #5
    Senior Member
    Join Date
    Sep 2004
    Location
    Cons digger.
    Posts
    3,924

    Default

    i was thinking about this matter this morning too!
    “How fortunate for leaders that men do not think.” - Adolf Hitler

  6. #6

    Default

    In film, a chemical reaction occurs in the film when light strikes on the film surface, and all film emulsion has a limited amount of light sensitive chemical (sliver bromide crystals?) to start off with.

    Reciprocal failure results from the fact that after a long period, say 1 minute, the film starts to have not enough chemicals to react with the light; it can be said that over a long exposure, the film gets less sensitive.

    Digital have no such problems since there is no chemical reaction that occurs. How hot spots occur is a totally different problem and I also don't know why.

  7. #7
    Member
    Join Date
    Oct 2004
    Location
    upper thomson
    Posts
    183

    Default

    is there any charts on how much to compensate on exposure for different films?

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
  •