Sony CineAlta HDCAM HDW-F900R User Manual - Page 9

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Sony CineAlta HDCAM HDW-F900R User Manual
7.0
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The gain selections available from the switch on the side of the camcorder can be programmed in
the user menu just like other camcorders.
A further option, available via the service menu, is to have the gain level displayed as an ISO / ASA
sensitivity rating. Useful if you're from a film background, but this feature should be used with care,
as the displayed 'speed' of the camera does not take into account other factors affecting sensitivity:
Shutter
•
ND filters
•
Range extender
•
Transmission factor of the lens
•
These should all be added into the equation before attempting to expose pictures purely by using a
light meter and the ASA rating of the camera.
Note that if you're shooting in progressive scan you will probably choose to use a shutter at 2x the
frame rate, and should therefore rate the cameras speed at half the above figures,
8.0 Outputs and Monitoring
HD will not fit into a PAL monitor. Too many lines, too high line frequency. This can make things a
little awkward for location monitoring and viewing.
The F900R however,comes with a number of standard and optional output signals that should give
you what you need.
Firstly there are two HDSDI outputs. HDSDI is a similar idea to the SDI signal that is the de-facto
digital interchange for standard definition. It just sends a lot more bits per second. (1500 Mbps as
opposed to 270Mbps for SDSDI.) Unfortunately we're going to have to get used to the fact that there
are now two flavours of SDI, and they don't mix.
Use the HDSDI output to connect to an HD monitor with an HDSDI input card. This is the signal you
should use for critical picture monitoring, or to send to a separate HD VTR or disk recorder for a
parallel recording or copying.
HDSDI is a very high frequency signal, so it doesn't go very far down an ordinary BNC cable...about
40m maximum.
The test out BNC supplies an analog luminance (Y) HD signal that can be fed to an HD monitor with
a component input. It will only show a monochrome picture, as it's only luminance, with no colour
components, but you can use it to check framing or view menus. More usually though, camcorders
are fitted with a down-converter option, that gives you SD monitoring option from test out
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