I bought this scope for a guidescope about a year ago and it has been used very little. The scope is in great shape and the views are good. It is a 90 mm dia. with 500 mm focal length making it about a f/5.6 scope. I comes with a EQ-2 so you can add a RA drive from Orion, etc. Slow motion controls, Red dot finder, erect prism, 25mm plossl eyepiece. It will be shipped in original box and price quoted by UPS insured. The clamshell has a tripod 1/4" thread so you can mount on a camera bracket onto your SCT, etc. Overall a good scope, but I am building my observatory so need cash.