Below are my preferred options for focal reducers, filters, books, etc . The ones marked with an asterisk are the ones I have used and highly recommend. The others are what I believe to be excellent alternatives to consider. If you click on the link in the highlighted name it will take you directly to the supplier. Links are affiliate links which means that I can earn a small commission which helps defray the cost of this web site. If you have questions on these or other products email me at firstname.lastname@example.org.
Focal Reducers * Celestron f/6.3: Focal reducer and field flattener for an SCT for 0.63X reduction. Agena Astro HighPoint Scientific bit.ly/3Uet5Iq * Celestron Edge 7X: Focal reducer and field flattener for an Edge SCT for 0.7X reduction Agena Astro Highpoint Scientific bit.ly/3tSPQJJ 0.5X focal reducer * Apertura 2" bit.ly/3U31JHz SVBONY f/5: 1.25" x 0.5 focal reducer. Inexpensive but should work fine for the beginner.
Video Capture & Camera Control Software *SharpCap: Free. Does not control analog cameras, but will provide image display, capture, stacking, histogram, etc. Will control USB cameras along with everything else.