Is there an adapter for a vivitar len to a sony A100 camera

I have a Vivitar lens, 85-205 f:3.8 U lens, that I used for a Pentax SP 1000. Now I'd like to use it for a Sony A100 camera, is there an adapter that would allow me to do this.

You need an adapter to convert the M42 screw lens to Sony (Konica Minolta) bayonet mount, and I'm sure that such a thing will be available.

Try eBay or a dealer.

Good luck in the search!

John