Lense Adaptors

[Vipers]

Hi guys, looking for any outlet which sells adaptors from a Pentax 42mm thread to a Canon 400D, what ever you call the fitting?

I have a couple of long lenses, (300 mm in particuar) which I brought for the Pentax about 30 years ago, and would like to use it with the Canon. Think the Takumar lenses were pretty good.

[Vipers]

Found one,ignore powst

tks