[APML] STV Questions

["Shekhar Borde" <shekhar@prodigy.net>]

All,

Does anyone know what, if any, differential flexure issues might arise
using an STV with an e-finder.  Is it completely immune to flexure or
only less so?  How does one mount the STV with e-finder on top of
the main scope?  

Given my setup, an 800mm FL scope on a G-11, what would be the 
longest exposure I could do using an STV+efinder combination?

I have been wanting to try H-alpha filtered shots on Tech Pan but 
only if I can go 2 to 3 hours.  This is practically impossible with my
current ST-4 + guidescope setup.  I am wondering if the STV will 
solve this problem.  Using an OAG is not an option with my Vixen
R200SS scope.

Thanks,

Shekhar
 


--  APML Archives at <http://astro.umsystem.edu/apml/>  ---
             Unsubscribe at <majordomo@seds.org>