Thanks Don, I'll look into this and I have an HTC Android phone as well.

Unfortunately all the ones I can find need mains power, at least at the receiver end so that negates that idea.

Don - 1. Might be feasible:-
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=290529295988&fromMakeTrack=...
A lot of the extenders are mains operated but this one is AA battery. If I got a remote that worked the camera with AA batteries (current ones all have button Li's) then fit the receiver close to and facing the receiver of the camera............
2. This might be a cheap route to an AA based transmitter.
3. Yes you could use a closer focusing lens but this would only gain say 2 metres and I need to be further than 5 metres.

Where this would be useful is that if the RF receiver can be taped or mounted in front of the camera I could be behind it because firing the RF signal won't be directional, or at least not to the same extent.

Tempting to try the above for the sheer fun of it!

Thanks for trying to help. Yes I'm afraid that's the problem Peter and why the solution is proving a difficult one!I just don't understand why they leave out such an important feature to save what - a fiver?
Dave

Not sure how that would work Peter, as the K-x doesn't have a shutter release socket, hence the post. Unless I am missing something?
Dave

Thanks. An old one from a Pentax Espio 35mm, a JJC RM-E4 (Generic) and another made in China Ebay cheapo. No problem to wreck one!

So John, are you saying put an existing remote with a modified swich close or attached to the camera and then trigger that with a wired or RF switch/ transmitter. Good idea but I'm not sure if I'm quite electronically up to doing the mod!

I have three IR remotes all of which work on the K-x but none stretch to more than about 4 metres in daylight. Made worse by the fact the sensor is on the front which means unless you are taking a photo of yourself you have to add the distance from the camera to the subject plus your distnce from the back of the subject, so not much use for wildlife. Obviously there are more options with the connector on the K20D etc. I would like to get a reliable 10 metres in daylight. Am I right in assuming that the RF ones which use a receiver need the connection socket or can they be worked via the hot shoe?
Any suggestions welcome.
Dave

The dioptre adjustment isn't the best on my K-x. It's a bit jerky between stops and there's no fine adjustment. There must be millions of over forties out there who have the problem of needing reading glasses for the screen and dioptre adjustment for the viewfinder which is difficult to use with glasses anyway!
Dave

Thanks Barrie.