Off Axis Guider for Newt

[gbeal]

Contrary to what Ponders might say, I am keen to at least try an off axis guider in my 10" newt.
Anyone got one they are thinking of parting with.
SCT versions not really suitable sorry.
Gary

[lhansen]

Hi Gary

I might have one tucked away somewhere, let me check

Cheers

Lars

[gbeal]

Lars,
now that surprises me, LOL. Look forward to your call.
Gary

[Ian Robinson]

You realise that unless you have a Lumicon coma corrector handy already , a OAG will not help much.

Baader MPCCs and Tele Vue coma correctors aren't designed to be used with low profile OAGs.

I too am on the hunt for an OAG (in particular a Lumicon 2" newtonian esyguider -I have a Lumicon coma corrector that I plan to use with it , if it comes with a Lumicon 3x relay diagonal that will be even better !!).

[gbeal]

No Ian, I wasn't. In fact the cunning plan was to use the OAG as a "spacer" between the MPCC and QHY8, as at present this requires about 35mm, so why not use the OAG as this distance, or am I wide of the mark here?
Gary

[Ian Robinson]

You might need to check out the thread in IIS a few months ago.

I was looking at using a OAG with my old XD5 35mm and new 40D and it wont work unless you have a Lumicon coma corrector (0x).

Comes down to how far in the imaging plane is from the from of the "camera", I don't know about you system , and how far back from the MPCC the focal plane is , I have a MPCC too and can connect it directly to my 35mm or the 40D to act a T-adapter, you'll need to get sums right for your set up.