Canon Fa Dc58a Is The Pentax SMCP-FA 50mm F/1.4 Lens Compatible With Canon DSLRs Like The 40D?

Is the Pentax SMCP-FA 50mm f/1.4 Lens compatible with Canon DSLRs like the 40D? - canon fa dc58a

I think the aim of buying this for my SLR (a Pentax SF-10), but I'm looking forward to a Canon DSLR move in a year or two, then I want to glass, which is compatible with this purchase I have, and what is on sale in the future (the Canon 5D far over my price point - Looking for a digital SLR Entry Level Intermediate)