I finally received the reducer for my CDK17 yesterday.
I installed it straight away (I had to grind the thread down for the adapter into the FLI filter wheel which has a shallow depth before the
adapters hit the filter screws and stop it turning - done it before with adapters - easy for the maker to get it wrong).
I installed a Vixen 95VMC guide scope with the ST402 (now repaired finally).
I was concerned I would get flexure. But 15 minute exposures show totally round stars - awesome.
This setup is going to show up any misalignment and there is a tad of that. Planewave has graciously said they are shipping a replacement focuser after the spacing shims fell out of mine after an accidental loosening of a plate they are under.
So mine is a tad out and there is some minor star distortions in 2 corners that I expect the new focuser to solve. I will check collimation while I am at it.
17 inches of F4.45 gets a bright image pretty quickly. A 15 minute Helix sub at 2x2 binning shows the real faint outer neb in one exposure. Cool!
I'll post some images taken with it later on.
Here is what it looks like:
http://www.pbase.com/gregbradley/image/136344979
Greg.