A&P rebel hot pixels

Discussion in 'Lifestyle' started by SpiderOnTheFloor, Apr 4, 2005.

  1. SpiderOnTheFloor

    SpiderOnTheFloor New Member

    Joined:
    Oct 2, 2003
    Messages:
    11,348
    Likes Received:
    0
    anyone get em? is there any way to avoid them? my cp 5700 had a noise reduction that was pretty good but i havent found anything on the 300d, but i found a hot pixel
     
  2. sony

    sony Active Member

    Joined:
    Jan 12, 2004
    Messages:
    112,723
    Likes Received:
    11
    Location:
    Los Angeles
    i had 3 of them on my rebel

    i had my rebel's sensor remapped

    [​IMG] [​IMG] [​IMG] [​IMG] [​IMG] [​IMG]
     
  3. SpiderOnTheFloor

    SpiderOnTheFloor New Member

    Joined:
    Oct 2, 2003
    Messages:
    11,348
    Likes Received:
    0
    all good now?
     
  4. dzmedia

    dzmedia Guest

    i get tons of hot pix on my 20d when i do long exposures.. but i have not noticed any issues on normal speed shooting.
     
  5. SpiderOnTheFloor

    SpiderOnTheFloor New Member

    Joined:
    Oct 2, 2003
    Messages:
    11,348
    Likes Received:
    0
    how do you fix them?
     
  6. SpiderOnTheFloor

    SpiderOnTheFloor New Member

    Joined:
    Oct 2, 2003
    Messages:
    11,348
    Likes Received:
    0
    or at least make them go away in post processing
     
  7. dzmedia

    dzmedia Guest

    clone clone clone!!!
     
  8. sony

    sony Active Member

    Joined:
    Jan 12, 2004
    Messages:
    112,723
    Likes Received:
    11
    Location:
    Los Angeles
    I don't have the Rebel anymore but after the remapping everything was all good, yes.
     
  9. SpiderOnTheFloor

    SpiderOnTheFloor New Member

    Joined:
    Oct 2, 2003
    Messages:
    11,348
    Likes Received:
    0
    what did it cost to get it remapped?
     
  10. sony

    sony Active Member

    Joined:
    Jan 12, 2004
    Messages:
    112,723
    Likes Received:
    11
    Location:
    Los Angeles
    done under warranty :run:
     
  11. SpiderOnTheFloor

    SpiderOnTheFloor New Member

    Joined:
    Oct 2, 2003
    Messages:
    11,348
    Likes Received:
    0
    i have 12 show up at iso 200 and 120 seconds...at 30seconds and iso 100 only one..i think i will live for now
     
  12. dzmedia

    dzmedia Guest

    Thats not uncommon for long exposures and sounds like you are doing fine... my night shots are usually 300+ seconds. the longer the exposure the more you will get..
     
  13. hash browns

    hash browns lolcathlon champion OT Supporter

    Joined:
    Aug 20, 2004
    Messages:
    95,391
    Likes Received:
    85
    Location:
    Manhattan Beach, CA
    dark current leakage sucks :riaa:





    hook up a cooler to your sensor or get an lbcast imager
     
  14. SpiderOnTheFloor

    SpiderOnTheFloor New Member

    Joined:
    Oct 2, 2003
    Messages:
    11,348
    Likes Received:
    0
    do you just clone them out later?

    also, how do you know if 300 seconds is the right time? the cameras meter doesnt really do much for anything outside the normal settings
     
  15. sony

    sony Active Member

    Joined:
    Jan 12, 2004
    Messages:
    112,723
    Likes Received:
    11
    Location:
    Los Angeles

    When you're doing exposures that long 10-20 seconds isn't that much unless you were over exposing after 10 seconds anyway, then you have bigger issues on your hands for leaving your shutter open that long. :hsugh:

    Guess. :wiggle:
     
  16. dzmedia

    dzmedia Guest


    yep just clone them out later

    with full moon light at 100 iso and f/5.6 5 minutes is the amount of time needed to expose properly. The reason you do 5.6 is it lets enough light in for you to get stars and star trails in the shot and also allows you more focusing area with a wider DOF..

    night shooting there is a much lower margin for error with exposure time... so you could do 260 seconds or 300 seconds and only see very slight defferences in images.
     
  17. dzmedia

    dzmedia Guest

    you are a true magazine commando aren't you?
     
  18. hash browns

    hash browns lolcathlon champion OT Supporter

    Joined:
    Aug 20, 2004
    Messages:
    95,391
    Likes Received:
    85
    Location:
    Manhattan Beach, CA
    no, i'm an electrical engineer
     
  19. COMplex

    COMplex New Member

    Joined:
    Jan 2, 2004
    Messages:
    7,565
    Likes Received:
    0
    Location:
    Denver, CO. / New Haven, CT.
    "I'M A DOCTOR NOT AN ENGINEER!"
     
  20. COMplex

    COMplex New Member

    Joined:
    Jan 2, 2004
    Messages:
    7,565
    Likes Received:
    0
    Location:
    Denver, CO. / New Haven, CT.
    and i just found a bunch of hot pixels on my rebel :( red, reen, blue, white... small, large, gay.
     
  21. sony

    sony Active Member

    Joined:
    Jan 12, 2004
    Messages:
    112,723
    Likes Received:
    11
    Location:
    Los Angeles
    Thats what you get for buying a toy instead of a camera. Look at the PSP.. I see a correlation between toys and dead pixels. :noes:
     

Share This Page