> Has anybody got any experience in commercial made focusers and
> is he able to provide me with some info about them (Height,spare
> focuser travel,diameter)?
Orion Optics, Unit 21, 3rd Avenue, Crewe Gates Industrial Estate, Crewe, Cheshire CW1 1XU, UK. (Tel: +44(0)-1270-500089; Fax: +44(0)-1270-251213) do both a 1.25" and a low-profile 2" focuser.
I have the 1.25" -- the drawtube has 95mm travel; the eyepiece collar stands 80mm from the base when fully racked in; when fully racked in, the drawube projects 35mm through the base; the base is 76mm diameter and can be machined curved or flat. It is probably unsuitable for your needs.
They claim that their 2" is 'preferred for astrophotography'. It comes with a 1.25" adaptor.
If you do deal with Orion, you should be aware that their qouted delivery dates are (as, it seems, with most UK astro suppliers), at best, imaginative fiction.
Clear Skies, Steve <sft@aegis1.demon.co.uk>