Monthly Archives: December 2018

  1. The Agena AstroProducts Holiday Gift Guide

    The Agena AstroProducts Holiday Gift Guide

    Author: Agena AstroProducts Published: January 2017 Add a Comment

    The holiday shopping season has arrived again, and it's time to start crossing items off your gift list. If you have an astronomer in your life, Agena AstroProducts makes it easy for you this year to choose a gift with this handy list of useful and interesting astronomy tools and accessories. There's something here for every stargazer, whether a beginner or old pro, visual observer or astrophotographer.

    Many of these suggestions, the ones marked with an asterisk (*), are now on sale through the holiday season! And if you still can't find what you're looking for, we have hundreds of astronomy products on sale during

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  2. How to Attach a Finder to your Crayford Focuser

    How to Attach a Finder to your Crayford Focuser

    Author: Agena AstroProducts Published: April 2014 Add a Comment

    In recent months, a number of customers have asked us for a solution to mount finders on their Crayford focusers. We are pleased to offer you a simple, elegant, and inexpensive solution via a modified Universal Finder Dovetail Base. This can be used to mount your red dot, multi-reticle, or larger conventional finder on single - or dual-speed GSO/Antares/Hardin/Burgess Crayford focusers that use an M4 screw to mount the dovetail base (Note: This will not work with William Optics telescopes

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  3. Compatibility of GSO Crayford Focusers with Refractor Telescopes

    Compatibility of GSO Crayford Focusers with Refractor Telescopes

    Author: Agena AstroProducts Published: April 2018 Last Edited: September 2023 Add a Comment

    A. Important Information - Please Read

    To help select a focuser for your telescope, you may find the table below useful.

    This table is meant to be a general guide and not an authoritative reference. We cannot be responsible for any problems or fit issues. The only way to correctly determine which size focuser/adapter you need is by removing your existing focuser, measuring the inside diameter of your telescope tube carefully, and then making a choice before ordering

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