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Old 05-11-2013, 05:02 PM
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pmrid (Peter)
Ageing badly.

pmrid is offline
 
Join Date: May 2008
Location: Cloudy, light-polluted Bribie Is.
Posts: 3,762
Quote:
Originally Posted by Astro_Bot View Post
I'm interested in this myself, so checked specs and measurements.

The ES erect 8x50 finderscope has a tube diameter of 54.9mm, according to the Agena Astro product page: http://agenaastro.com/explore-scient...ed-finder.html

My SkyWatcher 9x50 finderscope (that comes with the standard bracket) has a tube diameter of 53.1mm according to my digital caliper.

Looking at the rubber ring and minimum internal diameter of the bracket, I have doubts that the ES finder would fit in the SkyWatcher bracket - I think it might be too tight a fit. But, maybe worth the chance anyway. I think I'll roll some dice, or toss a coin, to make up my mind.

Edit:
After deciding a coin toss was too risky, I pulled apart the SkyWatcher finder and measured the bracket internal diameter - there's a recess that the rubber ring sits in and behind that is the narrowest part of the bracket - the largest diameter of the narrowest part I could measure was 53.85mm, so it looks like it won't fit.
I'll have a look and see - but I'm pretty sure I have a WO finder bracket that would fit it. I'm not sure if I have a "foot " or shoe or whatever it is called to go with it though. Stay tuned.
Peter