comments:
You are getting good info here but I want to provide some nuance. This telescope is a bit older model that has a 1.25" rack and pinion focuser, whereas most current models have a 2" "Crayford" style focuser that comes with a 2" to 1.25" adapter. (That's what's in the image provided earlier) A 6" 1200mm focal length telescope like this one can get by with only a 1.25" focuser because the f/7.9 focal ratio only allows for moderately tight field of views without the outer edges starting to drop off because it's kind of like looking down a straw (called vignetting). If you chose to do a 1 for 1 focuser replacement, you can get a Svbony SV181 for about $40 on amazon You could get this telescope running well for less than $200 which is still a decent deal.