Astronomik 2" Dark Frame Filter
Astronomik 2" Dark Frame Filter
The 2" Astronomik Dark Frame Filter is essential for a CCD camera that doesn't have a mechanial shutter. This filter allows you to take dark frames without the hassle of monitoring your set up. The filter is opaque and threaded in a 2" cell. This filter works even better with a filter wheel. Attach this filter to a filter wheel in order to take a dark frame without capping off your telescope.
The Astronomik Dark Frame filter is a must-have for many cameras that don't have a mechanical shutter, including interline CCD cameras from Starlight Xpress, Imaging Source, Atik, as well as others.