Re: [APML] Off Axis Guiders For Refractors???

[Jim Janusz <jjanusz@ix.netcom.com>]

Hi Kent,

I use an OAG with my AP 180EDF.  It is custom built by a friend of mine
and designed into the four inch AP focus extender and in front of the
FF'r.  Without the OAG I had consitent flexure problems with the scope.

Now its flexure free.


Jim
KGKIRKLEY@aol.com wrote:
> 
> Dear List Subscribers:
> Does anyone use Off Axis Guiders with refractors?
> There have been several threads concerning off-axis guiders with reflectors
> (SCT's, Newtonian's) and threads dealing with separate guidescopes, but I
> can't remember any concerning their use with refractors.
> Are the usual commerically available OAG's (Celestron, Lumicon, Meade?)
> applicable to refractors? Any special problems encountered (available back
> focus)?
> How about OAG's and AstroPhysics refractors with and without
> field-flatteners??
> Kent Kirkley
> http://www.connecti.com/~rreeves/kirkley.htm
> 
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