It seems that 'blooming' in a film camera can occur when the light
intensity in an area is such that the adjacent areas get some of the
photons that are not absorbed by the silver crystals. For this to
happen in a digital camera, the individual pixel sensors would have
to have at least semi-transparent walls that allowed reflected light
to pass to adjacent sensors. To get significant 'blooming', the
light intensity would have to be such that the adjacent sensors would
pass it on, so to speak.
Does anyone know if the side walls on image pixel sensors are at all
transparent or not?
For 'haloing' to occur in a digital camera, the software that does
the interpolation to fill in the missing colors and adjusts the
contrast could easily do this. You get the same effect by over
sharpening in the image processing software. I'm not aware of a
process that yields haloing in a film camera while the film is still
in the camera. Help me if someone on the list does know how this might happen/
Cheers,
James
At 09:53 AM 12/29/2007 +0800, you wrote:
Eslon writes:
: I wonder why it seems to be seen as an aberration in this review of the
: Nikon D300:
:
: "The camera was loved for its "brilliant" image quality, its good colour
: balance, low noise and its LCD. However at times the D300 produced some
: minor haloing in high contrast areas."
odd! they must have meant blooming I guess
k
James Schenken
