I have a CI700 Mount with a Celestron 9.25" OTA (used at F6.3), Tak FS78 OTA (used at F8.1 or F6), and currently an 80mm ST (400mm focal length F5 achro) that I use as a guide scope for my SXV-H9. I use MaximDL V4 as my aquisition/guiding software. I also have a Borg 76ED (500mm focal length F6.6) for quick looks.
My question: Would there be a significant advantage to guiding with the 76ED. Is there a significant advantage to guiding with an ED/APO as opposed to an achromat (less bloated guide stars, better snap to focus, etc.) or would this be a waste of good glass? Of course, going to the 80 ST as my visual quick look scope will definitely be a downgrade.
Thanks for your thoughts.
Steven Jindra
My question: Would there be a significant advantage to guiding with the 76ED. Is there a significant advantage to guiding with an ED/APO as opposed to an achromat (less bloated guide stars, better snap to focus, etc.) or would this be a waste of good glass? Of course, going to the 80 ST as my visual quick look scope will definitely be a downgrade.
Thanks for your thoughts.
Steven Jindra