RE: [APML]: LX-200 FIELD DE-ROTATOR

["Richmann, Michael" <richmann@cmt.anl.gov>]

Sounds like the whole affair sort of defeats the point of trying
to do good astrophotography.  Unless Meade has come up
with some sort of new trick, only the 16" LX200 is capable
of applying PEC in an alt-az mode of operation.  Given that,
and the apparent inability to use an OAG, this new gizmo
sounds pretty pointless...

Mike

> -----Original Message-----
> From: Bob Duncan [SMTP:bduncan@flash.net]
> Sent: Monday, January 19, 1998 9:10 PM
> To:   Astro-photography
> Subject:      [APML]: LX-200 FIELD DE-ROTATOR
> 
> 
> Some help s.v.p.  I called a Meade distributor the other day about the
> new field de-rotator available now on the LX-200 10" scope (all of the
> LX-200s, actually).  I was told that the field de-rotator device
> replaces the need for a wedge and is even superior in that the scope
> is less susceptible to viberation than when using the wedge.
> 
> Later I asked him about Meade's OAGs and was told that the OAG was
> incompatible with the field de-rotator.
> 
> Since the field de-rotator replaces the wedge I don't understand why
> it can not be used with an OAG.  Perhaps I misunderstood what the
> sales rep meant but he repeated himself when I questioned him.
> 
> Any enlightenment would be appreciated.