SVBONY SV179 Red Dot Finder Scope – Two-Hole Mount night sky camera 2 to f/8 with about

2 to f/8 with about 90% of the maximum transmission at a f/2 as guaranteed performance data

it could be a good start to add just a H-alpha filter to your collection of LRGB filters or you might even use it just on its own as we'll explain below

CCD Astrophotography: Very good – optimal suppression of light pollution

Designed to suppress artificial lighting from Bortle scale 1 to Bortle scale 8

Maintains over 95% relative illumination across full-frame sensors

SVBONY SV179 Red Dot Finder Scope – Two-Hole Mount night sky camera 2 to f/8 with aboutThe SVBONY SV179 Red Dot Finder Scope is a lightweight, non magnifying aiming device designed for fast and intuitive telescope alignment. By projecting an adjustable red dot against the sky, it allows quick target acquisition without the need to look through an optical finder. Key Features Fast Target Acquisition The projected red dot makes it easy to point the telescope at bright stars, planets, and the Moon with minimal setup. Adjustable Brightness