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SBIG ST8300 and MPCC spacer
Anyone know where I can pick up a spacer for my MPCC locally?
I have the ST8300 and a SN 8 inch which suffers from reasonably serious coma. In the past with my Canon 350D I simply added the MPCC at the front of the camera as the CCD was set a reasonable distance back inside. The CCD in the new camera is a lot further forward - there's only 17mm to the front of the camera and 31mm to the front of the nosepiece. I need to stretch that out to 55mm to ensure the MPCC works correctly with the camera - at the moment I have odd looking stars at the edge of field.
I expect the filterwheel (when it becomes available from SBIG) will add a bit more distance to the MPCC but I am still likely to be 10 - 15 mm short.
The Baader spacer kit has a 14 mm spacer which looks about right for me (I hope).
I see that Optcorp sell the spacer kit separately from the MPCC but Andrews and My Astro Shop only sell them with the MPCC. Any suggestions on where else to try?
Pete
Last edited by pvelez; 23-01-2010 at 02:14 PM.
Reason: More accurate reflection of contents of post
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