ARRI 535B - Manual (Page 10)

10
3.2.2 Optic Academy
For a complete and working IVS, either the optic silent or
the optic acacemy has to be installed inside the CCD optic
module. They are easily interchangeable.
The optic academy forms an image on the CCD chip based
on the 35mm academy format with a picture width of 22mm.
To check for important objects outside the image recorded
on film there is an additional area around the format markings.
The lenses are especially designed and built for the use with
the ARRIFLEX 535B to achieve the best image quality possible.
The aperture of 1:1.4 is particularly important for use as
video assist lenses: only a small portion of the light passes
goes through the camera lens goes to the video chip. The
lenses are not designed as zoom lenses because it would
be impossible to get the same image quality and speed.
All academy optics are marked with an N in the serial number,
e.g. N0040.
There is no difference between lenses for PAL and NTSC.
3.2.3 CCD Optic Module
The CCD optic module, which is mounted on the ARRI-
FLEX 535B’s viewfinder system, has to be equipped with
a video lens. This module contains the CCD chip and all
the necessary elements to center the video image on the
TV-monitor screen and to adjust focus. It also houses a
video pre-amplifier to increase the sensitivity of the IVS at
low light conditions.
The CCD optic module is available in two versions for PAL
or NTSC.
Note: It is necessary to keep the combination of CCD
optic module and inserter/antiflicker module
together as delivered. Mixing the modules might
lead to reduced image quality.
General Description