Image of the day

From the
ATWB Customer Gallery

Snake Nebula

My Account

New to Astromart?

Register an account...

Need Help?

Posts Made By: mike panucci

November 5, 2005 01:53 PM Forum: Binoviewers

W.O. BVs. - shorter poles for truss scope.

Posted By mike panucci

Hello,

I have recently delt with the expected problem of reaching focus on a fast newt. I own a 16" f/4.6 truss newt. I could not reach focus with or without the provided OCS.
Actually if I could reach focus with the OCS,,,, I still would not reserve myself to high mag observing.

Following the Denk website and some other review web sites, an option to truss scope owners is to shorten the poles. Well,,, I entertained the idea and made up a set of poles that were 4 inches shorter. It worked great!

I can observe at ~ 90X with a FOV of ~ 0.7'. Nice! I highly recommend the modification if you like wide field observing.

I carry my 2 sets of poles in a box. I obviously decide if the night will be a Ocular Night or Binoviewer night. I dont plan to change poles during the night.

BTW I figure I am losing < 1 inch of aperture. No big deal.

My ray trace situation is very forgiving on my scope. I use 3.5" secondary. When using the shorter poles,,if I rack the focuser in all the way and look down without an EP in place,,,I can "just see" the outer perimeter of the primary mirror.


Michael Panucci
My Astro MSN Web Pages :
http://groups.msn.com/MichaelsAstronomyMSNGroup/_whatsnew.msnw


October 23, 2005 05:00 AM Forum: Binoviewers

WO Bino Viewers

Posted By mike panucci

Hello there,

I just ordered my WO binoviewers from ,,,,
http://www.eBinoculars.com/
They were in stock.
I should receive them shortly.

I have a question to anyone who holds a pair of these BVs. I plan to use them on my 2 Dobs.
A 12.5 f/5 discovery.
And a custom 16 f/4.6.
I sure hope they come to focus.

Use a Extension tube? Maybe.
I own a Meade #140 barlow with a ~4" long tube.
I would rather use the provided 1.6x nosepiece as it should be lighter. Lets see what works.

Thanks Jim for your posting.
Does anyone else, use these on a fast NEWT system?
I would like to hear your expereince.


Michael
My Astro MSN Web Pages :
http://groups.msn.com/MichaelsAstronomyMSNGroup/_whatsnew.msnw