March photo competition: Nightlife

Discussion in 'photography, graphics & art' started by Robster970, Mar 4, 2006.

  1. Robster970

    Robster970 Pay homage to Global Bob

    sent again to your email :confused:
     
  2. Firky

    Firky The first of the gang Banned

    Cheers man, I have a habit of deleting my PMs all at once!
     
  3. wordie

    wordie What's in a word?

    They're not stars. They're burnt out pixels on your sensor. It's quite common on long exposures... If they were stars, there would be movement on them as well! Good shots though! :)
     
  4. Firky

    Firky The first of the gang Banned

    What would make them burn out, and how do I check my camera for it? Just do a long exposure like that?
     
  5. wordie

    wordie What's in a word?

    Well I don't know the technical reason why they burn out, but it's quite well known with long exposures... I'm pretty sure it's only with then and not permanent.

    I'm sure someone will find a tech reason and correct me if I'm talking bollocks though. :D

    Edit: Just found something here! It's about burnt out pixels but it's not referring to long exposures/night shots!

    "I suspect that the effect comes about when point sources of light saturate individual sensor pixels and the bayer interpretation software just can't handle it - or something like that :)"
     
  6. Robster970

    Robster970 Pay homage to Global Bob

    you know it's still saying your box is full ????
     
  7. Firky

    Firky The first of the gang Banned

    Yeah? Tits! It doesn't matter, someone emailed me the details :)
     
  8. wordie

    wordie What's in a word?

    Actually they seem to be referred to as "hot" pixels and there's a bit more info on this forum.

    "I think the reason it's called a "hot" pixel is because the CCD heats up too much during the length of the exposure causing certain pixels to get stuck on a certain colour."

    Sounds reasonable if not acceptable!
     
  9. Firky

    Firky The first of the gang Banned

    Hhmm, I was wondering why it doesn't appear on his other photos - if it is a software thing then I guess a firmware flash would sort it :)
     
  10. Robster970

    Robster970 Pay homage to Global Bob

    you knob - that was me :rolleyes:
     
  11. wordie

    wordie What's in a word?

    It's a hardware thing. Garf's other shots are all smaller and I'd guess that's why you can't see it in the resized (smaller) .jpg he posted above the huge version! (Molto colour info goes missing when you downsize a jpeg doesn't it!)

    Circumstances. At least it sort of demonstrates it's not fatal to camera sensors... :cool:
     
  12. mauvais

    mauvais change has become unavoidable

    It's a bit like how you get dead pixels on LCD monitors. A few transistors are bound to go wrong. It's not caused by anything like overheating AFAIK - it's just an unavoidable fact that some of them stop working.

    You can test for 'em by taking a shot (long exposure? edit: no, 1/160ish at ISO1600) with the lens cap on.

    You can get rid of 'em by remapping the sensor. This is a function on Olympus cameras - even the shit P&Ses - but not on Canon or Nikons, which require warranty service.
     
  13. disco_dave_2000

    disco_dave_2000 la la lapland

    here is my entry

    Gimp night

    taken on T-MAX3200, scanned and then upped the grain and tweaked the curves via Photoshop
     
  14. thefuse

    thefuse New Member

    scary :eek:


    a la dead man shoes
     
  15. lighterthief

    lighterthief Well-Known Member

    Late entries:

    1

    2

    3

    All taken with a handheld Nikon Coolpix2000, levels adjusted automatically via Photoshop.
     
  16. thefuse

    thefuse New Member

    i like that no1. :)
     
  17. snadge

    snadge metal alchemist

    hey, cheeky boy, try this, straight outta da camera, should have entered it but couldn't find it, exposed the ruins using my flash and setting it of manually several times running around in different positions to eliminate shadows ( or in this case introducing multiple shadows from different directions)

    :D ;)
     
  18. wiskey

    wiskey Albatross Admirer

    who you callin boy! :mad:

    fair play to ya.
     
  19. snadge

    snadge metal alchemist

    :p

    contrary to what riotsky said I think there are some cracking entries, different but still good stuff.
     
  20. Firky

    Firky The first of the gang Banned

    Still good, just not as good methinks :p

    Bump! I'll update the thumbnails tonight when all the entries are in... last day to enter etc.
     
  21. Crabalocker

    Crabalocker New Member

  22. Firky

    Firky The first of the gang Banned

    Long time reader first time poster before anyone asks.

    I have no problem with you entering the comp' despite you never posting on, I don't think you can enter if you haven't contributed to the forums before - correct me if I am wrong? LTRFTP or not :(



    Any objections? I'm OK with him entering as he did register in 2005...
     
  23. what

    what Well-Known Member

  24. Firky

    Firky The first of the gang Banned

  25. lighterthief

    lighterthief Well-Known Member

    Nice work on the thumbnails, thanks :)
     
  26. Firky

    Firky The first of the gang Banned

    1] Old skool - Ninjaboy
    2] moon - blackadder
    3] Entry 3 - Snadge
     
  27. blackadder

    blackadder I knew a girl named Nikki

    1st tron - danski
    2nd Boom! - Riot Sky
    3rd ambience - mauvais mangue

    Very little to choose between the 3, Tron won it for me because of the film I think.
     
  28. mauvais

    mauvais change has become unavoidable

    There are no rules about having needed to have posted first. I didn't agree with banning the last guy from entering, but that was more dodgy. I think we should let them enter. Just my own opinion...
     
  29. Firky

    Firky The first of the gang Banned

    He did register in 2005, so I`ll let him in, yeah?
     
  30. mauvais

    mauvais change has become unavoidable

    Aye, I reckon. Got to start somewhere...

    I'll vote tomorrow when I'm less knackered.
     

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