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UK Nights

Discussion in 'Web Sites of Interest' started by AlanW, Jul 25, 2005.

  1. AlanW

    AlanW Well-Known Member

  2. BigWill

    BigWill Gorgeous oversensitive Nikon-loving cream puff

    Fascinating! Will have to include a "night photography" round in next years "Monthly theme"

    BigWill
     
  3. mags

    mags Well-Known Member

    ...But....Its all Black and White :D.....Okay Ill shut up, but Im thinking it .
     
  4. Fen

    Fen Well-Known Member

    Nice site. Certainly bookmark that one.
     
  5. 0

    0 Guest

    But nights are black and white! Well, black, anyway.:D
     
  6. Duffs

    Duffs Well-Known Member

    Some odd subject matter ... but works in a strange sort of way.
     
  7. mags

    mags Well-Known Member


    ...Ah Ha, not exactly the case, the reason we percive night as Black, or perhaps many shades of grey is because the human eye cannot percive colour with out light, night may indeed be a colourful event but we are not biologically able to discearn this, but film indeed shows some odd colour shifts ect with long exposure at night, but i surpose its a bit "if a tree falls in the woods and nobodys arround to hear it" sort of conumdrum. :D
     
  8. Milo

    Milo Member

    Quality site! Great mix
     
  9. yirmon

    yirmon Well-Known Member

    Nice find! Thanks for the link... some really nice shots there.

    Cheers,

    John
     
  10. dylan

    dylan Active Member

    haha love the avatar (whatever that is)
     
  11. shylock

    shylock Member

    great pictures
     
  12. Justanotherfish

    Justanotherfish Well-Known Member


    There are colour pictures in the site, I like the pictures might try it in Liverpool?!
     
  13. T_Sargeant

    T_Sargeant Well-Known Member

    Isn't that because the colour receptors in the human eye (the cones) only work at relatively high intensities of light whereas the rods are much more sensitive to light but don't produce colours.
     
  14. ermintrude

    ermintrude Hinkypuff

    Yep...

    "The retina of the human eye is a mosaic of light-sensitive nerve cells. These are of two types, called rods and cones because of their shape. Rod cells are primarily concerned with vision in low light, they have no capability to discriminate colours, and their outputs are connected together in groups. Cone cells contain pigments that make them respond to different wavelengths. The so-called b cones respond to light at the blue end of the spectrum between about 350nm and 550nm, peaking at about 440nm. The g cones respond over a range of about 400nm to 660nm with a peak at about 540nm. The r cones have the widest range, starting at about 400nm, peaking at about 580nm, and extending to the red end of the spectrum at 700nm. Cone cells only work in relatively high light levels, which is why all cats are grey at night.

    The different type of cells are not equally distributed in the retina. On the optical axis of the lens the retina has a small pit the size of a pinhead, called the fovea centralis or centre of vision. This contains only cone cells. This is surrounded by a larger area called the macula lutea or yellow spot, which contains rods and cones. The remainder of the retina contains only rods.

    The effect of this is that, although the visual field is very wide, sharp, colour vision is only obtained over an angle of a few degrees. Outside this, vision is blurred and mostly monochrome. Of course, we do not normally notice this because the eyes are constantly moving to focus on things of interest that appear in our peripheral vision.
    "
     
  15. alphanov

    alphanov Well-Known Member

    I also read that the brain processes the "images" from the eyes at a reasonably slow rate and "makes up" the bits in between. If you are involved in a traumatic experience the brain processes the "image" at full speed - but only in black & white. This is supposed to be why things appear to happen in slow motion at times and it's intended to give your body chance to prepare for action.

    I don't know how true that is but it makes some sort of sense.
     
  16. Larry Shone

    Larry Shone Well-Known Member

    Cant be bad, its even got pics of my old home town, Wolverhampton! ;)

    As I read somewhere today, its not the end of the world but you can see it from there......
     

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