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Hi..
The main differance is price...and did i mention price..They say that a 5 " refractor is equall roughly in image to an 8" reflector, and this varies from person to person..A refractor is easy to maitain because there's no need to collimate..And a reflector has its primary imaging surfaces open to the elements.But reflectors are more addept to deeps sky objects where refrators are better on planets and lunar targets..That being said, a reflector will give you very nice planetary views..An f8 reflector would need to be quite long and have a smaller primary to achievethat ratio..most are around f4.5 to f6..I am a reflector fan myself for the sheer bang for your buck factor..for around 1000 dollars you can get a 12" reflector on a dob..You can't beat appature..Are you interested in astrophotography??if so, you would need to be looking at motor driven mount or a clock drive..
Cheers
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