Quote:
Originally Posted by mithrandir
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Bart the three thumb screws only lock the inserts to the main body (see below).
There are only really two options Andrew. One side is solid with 48mm thread and the other side is an insert held in place by the three thumbscrews. For the camera side you either buy the T thread or 48mm thread inserts (same as 50mm filters and most 2" nose pieces with metric threads). For the scope side you will need a 2" nose piece with 48mm threads ( I use one from a 2" WO diagonal). APM only supply the T thread version. You will have to buy the 48mm insert from the teleskop service (your second link) at least thats where I got mine from. Please note that these OAG's whilst being incredibly thin and light offer little room to rotate the prism (about 5 mm at best) and are really restrictive when it comes to framing (no guide star = no auto guiding). This means you have to rotate the entire camera to find a suitable star unless you are really really lucky. Also remember that it cannot go any old place in the imaging train. It must be set so the guide camera chip is at roughly the same distance as the camera chip from the pickoff prism if you want to have any chance of bringing both cameras to focus at the same point (there is about 10mm adjustment). I posted a few pics of my setup a while ago, will find the thread.
Here it is.
http://www.iceinspace.com.au/forum/s...t=58016&page=2
Mark