I have a MCO 100 mm f/10 Mak-Cas (mirror lens) which I used for travelling. It has proven to be an outstanding little travel scope. As I no longer have the need for a very portable scope I'm selling it. Provides very good star images. Comes with leather carry case and blue, orange and neutral full aperture filters. Also included is a 1.25" Intes visual adapter. $150 incudes shipping in CONUS.