The information below is for historical reasons only. The telescope is now a 16 inch F3 with a 5 inch flat. The camera (installed December 2015) is no an Atik 314L+ mono with Atik filter whell and 100 Star Analyser as well.




The primary CCD for the 16 inch F4 will be a spare Starlight Xpress SXV M7 that I have.

The camera is mounted in the centre spider along with a bespoke focus mechanism. Limits for in and out travel are fitted. The focuser will be ASCOM compliant.

The focuser is driven from a motor gearbox pair that has a very high gear ratio. At 9V one rotation is approximately 2 seconds. There is no backlash worth worrying about, and no axial slop either.

The mechanism is mounted in a black drain pipe tube that can be removed for inspection and alignment of the optics.

A larger camera can be installed by a new interface section if required up to the diameter of the drain pipe, but this set up will give similar field area to the 20 inch Telescope and Observatory

16F4_CCD_003.JPG
16F4_CCD_002.JPG
16F4_CCD_001.JPG

You can see the camera mechanism (and additional upper baffle) installed in the centre spider position below.

16F4_Tube_0206~1.JPG

Image below shows the wiring of the control system well under way August 2012. Unfortunately the project had taken a 3 month delay due to my Dad being taken into hospital.
16F4_Roof_drive_012.JPG