"Hot" pixels - awful pictire...

  • 4 Replies
  • 5929 Views
*

Offline GrAnd

  • ****
  • 916
  • [A610, S3IS]
    • CHDK
  • Publish
    "Hot" pixels - awful pictire...
    « on: 09 / March / 2008, 17:24:25 »
    Advertisements
    First row - three "hot pixels" in the first shot of a series.
    Second row - the same "pixels" from the 8th shot.
    (6x zoomed in)


    « Last Edit: 09 / March / 2008, 17:26:19 by GrAnd »
    CHDK Developer.

    *

    Offline intrnst

    • **
    • 99
    • A710IS + Morebest
  • Publish
    Re: "Hot" pixels - awful pictire...
    « Reply #1 on: 09 / March / 2008, 19:18:49 »
    First row - three "hot pixels" in the first shot of a series.
    Second row - the same "pixels" from the 8th shot.
    (6x zoomed in)




        - As I suspected! - said Dr. Watson with great delight.

    With lens cap or what? And about the shooting interval?
    I think this bring us back to the auto_caps_on_shooting_function...

    « Last Edit: 09 / March / 2008, 19:20:41 by intrnst »
    -- funny english, be aware -- CHDK for Dummies - The Very First Steps

  • Publish
    Re: "Hot" pixels - awful pictire...
    « Reply #2 on: 09 / March / 2008, 22:02:55 »
    Deleted
    « Last Edit: 22 / April / 2008, 13:59:06 by Barney Fife »
    [acseven/admin commented out: please refrain from more direct offensive language to any user. FW complaints to me] I felt it imperative to withdraw my TOTAL participation. Nobody has my permission, nor the right, to reinstate MY posts. Make-do with my quoted text in others' replies only. Bye

    *

    Offline GrAnd

    • ****
    • 916
    • [A610, S3IS]
      • CHDK
  • Publish
    Re: "Hot" pixels - awful pictire...
    « Reply #3 on: 10 / March / 2008, 02:55:26 »
    More details about that pictures...
    Camera A610. Without CHDK. Shutter speed was 1s (so, no dark frame subtraction). Manual mode. Shots were made in dark room with lens closed by a cap. All 8 shots were taken within 40sec interval.
    Post processed in Photoshop (only levels: 0-4.50-127).
    CHDK Developer.


    *

    Offline intrnst

    • **
    • 99
    • A710IS + Morebest
  • Publish
    Re: "Hot" pixels - awful pictire...
    « Reply #4 on: 11 / March / 2008, 05:43:52 »
    More details about that pictures...
    Camera A610. Without CHDK. Shutter speed was 1s (so, no dark frame subtraction). Manual mode. Shots were made in dark room with lens closed by a cap. All 8 shots were taken within 40sec interval.
    Post processed in Photoshop (only levels: 0-4.50-127).



    @GrAnd
    Thanks for the info.

    @both
    Perhaps I'm wrong, but... is it correct to think that the caps on feature is still absent in CHDK because no one really needs it?
    I mean, these threads didn't go very far indeed:

       Darkframe noise reduction
       long exposure- noise reduction = amp glow

    -- funny english, be aware -- CHDK for Dummies - The Very First Steps

     

    Related Topics