ARRI ARRISCAN Speed3K - Manual (Page 10)

10
Image Capture
For capturing the image a custom-designed CMOS area sensor is utilized.
CMOS technology presents several advantages: high speed performance
by parallel data outputs, flexible output modes through active-pixel-
technology and film protection through short exposure times.
The ARRI-designed CMOS chip sensor is optimized for speed and for
quality. It is a robust 35 mm area sensor with low power consumption
and can be operated at much higher speeds than traditional sensors.
Combined with the LED light source it represents an ideal method of
capturing high quality images.
Extended Dynamic Range
When utilizing the 'double exposure' method, each frame of film is
exposed twice at different light levels. Both of these images are digitized
and composited into one output image. This method is used mainly for
film stocks with a high density range; it ensures excellent signal quality
(signal-to-noise ratio), even in the most demanding situations.
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