new old lens Soligor 500mm f/8.8

Just Got This Lens Real Cheap (£40)Soligor 500mm f/8.8 Mirror Lens
is it any good & does anyone have any experience with it or some sample pictures they could post
http://i62.tinypic.com/i22fdh.jpg

Cheap as chips aren't they, not used one myself but I understand they have a bit of a following here https://www.flickr.com/groups/1151567@N20/pool/

A tripod or monopod is a must though, hope your eyes are good for the manual focusing, I'd like to see some pics when you try it out.

yes cheap, i have a two x adapter for it too, hope to get some great night shots.
focus on my panasonic lumix G2 & G10 are great, they zoom in at the click of a button so i can manual focus easy. should be ok.

perfect for moon shots, and maybe some wildlife but the ring bokeh is generally unpopular.