Lens help for Canon XSi

[macguy]

I have just purchased a Canon XSi camera body(have not yet received it) and would like to know if the camera lens which I have and used with my Pentax Super Program camera are compatible.
The lens are as follows:
1. SMC Pentax !:1.4 50 mm.
2. Tamron 70-210 mm 1:4-5.6.
3. 58mm Tiffen SKY 1-A, this lens also has markings "MC Auto Zoom CPC Phase 2 CCT.
Now what all this means I am not sure, not even sure why I bought this stuff as I did not find the time to use them. Anyway I am hoping that I can plug them into my new camera without buying any new lenses as these are like new.

Any advice would be greatly appreciated. Thank you. macguy

[zrfraser]

No you won't be able to use Pentax K-Mount lenses on your new Canon digital body. All companies have their own propietary mounts. You could use your Pentax lenses on a Pentax digital body, since they have always had the same mount. If I were you, I would sell all the lenses on ebay, and buy a Canon 50mm 1.8. You can find them for 89.00 new, so that is a an excellent deal on a very good lens. Sorry about the lenses, but you have an awesome body on the way, you just won't be able to use it for awhile.