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The GSO RC08 (aka bagded as Orions, Astrotech, and others) can be used visually but it requires the use of both extension tubes whereas with a camera nly the single longer extension is required. I have used mine visually for testing so i know it can be done. However it s not a great visual scope compared to others. Where it shines is in fairly long focal length imaging.
Once you have it set up for imaging I would suggest not changing it, as you need to collimate it for your camera.
Don't buy one if your not prepared to learn how to collimate it correctly.
There are other things you would need to buy as well, like the GSO collimation ring, that allows you to properly align tge focuser. The stock GSO focuser can be a pain to keep aligned due to the bevel edge mount of the tube which can shift when camera weight is applied. Most people eventually install a Moonlight focuser or equivalent.
Good luck.read all you can about RC collimation before you buy.
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