Bit of an update... Like I said I made a housing for the glassware, but it would not fit in any of the donor housings (an old 2" barlow, the 2" 0.5x reducer) I thought I would use as the Baader has 46mm clear aperture of glass. I got it mounted in the end in some old 2" filter cells, but the optical path was getting longer and longer, which is not what I wanted as this would increase the reducing factor, and so also vignetting and distortion / field curvature (maybe? depends what this unit is specified for). So, complete change of tactic and off I went to the Baader website for their beautifully comprehensive collection of adapters - i'd previously avoided this part of the Baader website as I knew it would set my mind awash with ideas for modding and connecting this to that etc...
The T-thread approach is the way to go, one of the 2 adapters I have ordered from China have arrived now, and this will enable me to make a T-thread to Quark connection (unscrewing the Quarks 1.25" eyepiece holder and using the 35mm thread (1.375" 24tpi). Total cost for these adapters including delivery £7
I then ordered a 2" SCT to t-thread adapter
http://www.tringastro.co.uk/baader-plan ... 2514-p.asp to connect the chinese step up rings to the Baader Telecompressor.
The Other side of the telecompressor then has a 2" SCT to male m48 adapter, which allows me to screw on either a 2" eyepiece holder for visual work, or screw on a 2" to 1.25" reducer for when I put the DMK in the end for imaging. By using different accessories I will be able to vary the distance of the CCD to the telecompressor which will give me a variable reducing factor to work with. The trick is not having the reducer too far away from the CCD...
In the mean time lathe skills are being brushed up on at work and I am going to make some adapters that allow me to get
the PST in the optical train in a way that takes up less optical path than it does currently.
When I have all this assembled i'll get some pics of it all, and hopefully the sun will come out and can actually test it properly!