someone says scanned at 2K, what does that mean? Is it 2K vertical lines,
or 2K horizontal pixels. If it is 2K vertical, then what is the horizontal
pixel count, and if it is 2K horizontal then what is the Vertical lines.
to HD (I know different list), Is HD 1920 Vertical or Horizontal? Which
part is the 1080?
I think I know, I just want to be certain.
- Gladstone Films
Coast List administrator - CML
Gladstone wrote :
someone says scanned at 2K, what does that mean? Is it 2K >vertical lines,
or 2K horizontal pixels.
systems use the following sizes (pixels across the 35mm frame x lines
x 3112 -> '4K' Full app
x 1556 -> '2K' Full app
x 3112 -> '4K' scope
x 1556 -> '2K' scope
x 2664 -> '4K' Academy
x 1332 -> '2K' Academy
the Lightning scanner case these are cropped from the 4K line array with
the same area of film always being imaged onto the sensor. The 2K outputs
are downsampled from the 4K on the fly.
each case the 'K' is a base 2 number as opposed to a base 10 :
-> 2^10 -> 1024
-> 2^11 -> 2048
-> 2^12 -> 4096
doing vista the frames are on their side so you get :
x 4096 -> '4K' vista
x 2048 -> '2K' vista
2x the size of the full app version -> 4096 x (3112*2) = 4096 x 6114
turned on its side becomes 6114 x 4096.
each case the size is based upon the number of pixels used to sample the
width of the 35mm.
to HD (I know different list), Is HD 1920 Vertical or >Horizontal?
part is the 1080?
interlaced formats HD gives you :
x 1080 (1080p versions)
x 720 (720p versions)
1080 is the number of lines.
: These numbers have only a passing relationship to resolution in that
they dictate the theoretical maximum MTF but lots of things lower this
in practice, so its a bit apples and oranges to compare the pixel count
of two imaging systems directly.
Senior Do-er of Technical Things
Cinesite (Europe) Ltd
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Wheatley wrote :
systems use the following sizes (pixels across the 35mm frame >x lines
per picture) : 4096 x 3112 - '4K' Full app 2096 x 1556 - '2K' Full
the interest of crossing the 'T's, full app is 2048 x 1556.