Orion Mini 50mm Guide Scope with a ST-4 or SG-4
Posted 10 November 2013 - 09:12 AM
Posted 11 November 2013 - 06:23 PM
Posted 12 November 2013 - 08:51 AM
Posted 12 November 2013 - 02:55 PM
Thanks for helping out.
First - I would like to guide a 35mm OM-1 with a 135mm lens with a #25 Filter and Hypered Techpan to make what I call a Po' Man's Schmidt for Wide Angle HII regions in the Milky Way. I am looking at 2 to 3 hours exposure. Mirror flop on my C-11 was not helping my tracking.
Second, the Model I was looking at is:
I was wondering if the orion 50mm Guide Scope could handle the ST-4 head weight of 8oz. (the Orion StarShoot AutoGuider weighs around 4 oz.).
So can this guide scope handle the extra weight and a possible 4.5 inch extension tube if I need back focus.
I just hunted around the myriad of boxes in my "Smoke House" and found a Losmandy Dovetail Type System for my Finderscope which has ring diameters of 65mm and the distamce between the rings is 65mm. So it looks like I may be able to use that if neccessary to help reduce Flexure if needed. (Ihave to get some new screws for them). I just wanted some experienced advice for use without the newly found Dovetail Assembly.
Hope this clears up where I am trying to go...
Posted 13 November 2013 - 09:06 AM
Posted 13 November 2013 - 09:46 AM
I put up a post yesterday about the William Optics 50mm CCD Imaging Guide Scope # M-G50. It looks a lot better, and I have found a Losmandy type dovetail mount with 2 rings attached that should provide an even better set-up than the Orion Mini 50mm Guide Scope for the price. What do you think?
Posted 13 November 2013 - 10:51 AM