Astrel Instruments AST183X Step By Step User Manual - Page 2

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Astrel Instruments AST183X Step By Step User Manual
Astrel Instruments
AST-8300-X AST-183-X
Introduction
This guide describes the complete procedure to be followed by the user to mount filters on the
integrated filter-wheel.
The guide refers to SW release 1.13.
Filter wheel description
The AST8300X and AST183X are equipped with 8 positions internal filter wheel for up to 7 1,25"
unmounted filters with thickness between 1 and 3mm. One position is the shutter.
On the wheels, filters are referenced as 1 (shutter) - 2 - 3 ... looking at the camera from the
optical window side and counting CCW.
For the AST8300X, which doesn't have an electronic shutter, the wheel moves CW or CCW
depending on which filter is selected in order to minimize filter crossing to reach the selected
one (see the arrows).
Mounting Filters UG
2/4
rev A