You can use your Celestron FirstScope 70EQ, FirstScope 80AZ, Firstscope 80EQ, NexStar 60, or NexStar 80 refractor for daytime solar observing with this inexpensive filter . . .
You can use your 4” Celestron C4R or FirstScope 102AZ refractor, or your C4.5 reflector, for daytime solar observing with this inexpensive filter . . .