Siebert Optics PST Focus Adapter

[pmlogg]

Siebert Optics, an American company makes adapters of 3 different magnifications 1.5x, 1.75x amd 2x to allow imagers to be focused with the Coronado PST. This is the link:

http://xwww.siebertoptics.com/PST%20focus%20adaptors.html

What is missing from the site is a list of which imagers will work with each of the adapters. I would like to be able to use my Canon DSLR through the

PST. I sort of can now but only by using a very unwieldy setup including a Televue 2.5x powermate and eyepiece projection. The Siebert Optics solution is much neater.

I suspect that only the 2x version would provide enough extra focus (more than the 40mm offered by the 1.75x) but the higher magnification may also mean that I might not get the whole solar disc in frame.

Does anyone have experience with these adapters?