Not sure if they'll ship to Ireland, but Henry's here in Canada has them for $25 which is a pretty good price. I just got one for my Takumar 28mm f3.5 and 200mm f4, and it focuses to infinity. PENTAX SP-K ADAPTER
I hear that if you're careful with the Bower adapters (the metal clip/spring can be brittle) they work just fine too and focus to infinty. Plenty of them for a good price on the bay of e.
I have one of the Roxen adapters from eBay. Works find to infinity, but you do have to play with it a bit to get it off the camera sometimes. The first time I used it I thought it was stuck on the camera. The trick for me was to bend the little metal retaining strip a bit and playing with the wrench a few times to get a handle on removal. From what I read the genuine Pentax adapters don't have this issue.
I have one of the Roxen adapters also - works great, allows infinity focus, but as mentioned by Tybeck it's a PITA to get off the camera. I took a permanent marker and made a mark on the front edge of it - lined up with the red dot (you can't see the dot when the adapter is installed). Much easier to get off when the dots are lined up.
Well, I've tried several stores that will not ship to EU, missed a UK item due to an out of date listing and emailed Henry's about shipping costs without reply. So... I am still without an adapter, and am only wanting an official Pentax make. I might yet have to resort to spending 30 pounds sterling, but that seems silly.
Anyone got one they are not using?
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