Bought these today, cheap, on the off-chance an adapter exists to mount them on my canon 1100D (seem to have read somewhere that they exist), or sell them for some canon gear. Does such an adapter exist? and are these good lenses worth using? They look to be dust, and scratch free (dusty on the outside). The 2 primes are sizes that I would love to own, but cant afford, so it would be awesome to use them. A pentax k-1000 with a moldy view-finder came with it, and an after market flash.

SMC Pentax-A 1:2 50mm, Sigma mini-wide 1:2.8 28mm with macro, and a zoom made by kiron 80-200mm with macro.