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1.25" Visual Back for the NexStar 4

The rear port of the NexStar 4 accommodates the same accessories as the Meade ETX-90/105/125.  In the Additional Tips and Solutions chapter of my book, The NexStar User's Guide, I suggested a 1.25" visual back from Meade but apparently they are no longer offering this product.  There are two other offerings that have since become available which help in this respect.

The first is an SCT adapter from Baader Planetarium (https://www.baader-planetarium.com/en/)which threads into the rear port of the NexStar 4 and 4SE and provides a standard 2" SCT thread which accepts the wide variety of accessories designed for an SCT optical tube.  You can attach a visual back, astrophotography adapters and more.  The adapter is known as the NX4/ETX (Mak/SCT) Universal Adapter and is Baader part number NX4-ETX.  North American customers can purchase Baader Planetarium items from Alpine Astro (http://www.alpineastro.com/eyepiece_adapters/eyepiece_adapters.htm). 

CNC Parts Supply, Inc now offers a visual back for the NexStar 4 - http://www.cncsupplyinc.com/etxstuff.htm.  Look for the "ETX Visual Back", item number ETXVB.


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