Antlia 3nm SII Pro Series Filter - 31 mm - SII-PRO-3NM-31 finderscope Then check out the Celestron

Then check out the Celestron UpClose G2 7x35 Binoculars

a hand warmer

This 3340-AVX Adapter from iOptron will allow you to externally install their iPolar Polarscope on the AVX or the CG5 mount

or want to mount an Explore finder on another telescope brand

Antlia 3nm SII Pro Series Filter - 31 mm - SII-PRO-3NM-31 finderscope Then check out the CelestronThis very narrowband 3 nm SII filter from Antlia is part of their Pro series and is of the 31 mm unmounted variety. It is normally used in a 1. 25" 31mm filter wheel, where it drops into place. Antlia 3nm Pro Series Sulfur II Filter 31 mm Unmounted This Antlia SII Pro narrowband filter optimizes the FWHM (full width half maximum) to a 3nm bandpass. As the bandwidth becomes narrower, the 3nm Pro narrowband filters enhance contrast of emission targets