Handbook for the TRIUS PRO 694 Issue 19th April 2019
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The TRIUS-PRO 694 uses a Sony ICX695AL ‘EXview’ progressive scan CCD, with
2750 x 2200 x 4.54uM pixels in a 12.5 x 10mm active area. This EXview device has an
excellent quantum efficiency, with a broad spectral response peaking at around 77%
in yellow light, and an extremely low dark current, well below that of most other
CCDs. While this device also has an excellent blue light sensitivity, it has a strong
infra-red response, which makes it ideal for all aspects of both planetary and deep-
sky imaging, especially with an H-alpha filter. The H-alpha QE is about 65%,
considerably better than many other interline chips.
The full-frame download time is only around 2.5 seconds and a binned 4x4 download
takes only 0.3 seconds, so finding and centring are very quick and easy in this mode.
Here is a diagram of the connectors to be found on the rear panel of the camera:
Please take a few minutes to study the contents of this manual, which will help you
to get the camera into operation quickly and without problems. I am sure that you
want to see some results as soon as possible, so please move on to the ‘Quick Start’
section, which follows. A more detailed description of imaging techniques will be
found in a later part of this manual.
