I used the 13mm section of a set of tubes glued to a 58mm filter with the glass removed, works a treat

Does it have a tray for the Li-Ion battery?

I recommend you all read South. Shackleton's account of the trip.
It's amazing in this country that we celebrate a failure more than a success. Sir Robert Falcon Scott was a legend when I was a kid, a man who made quite a few catastrophic decisions that led to the death of the whole party. Whereas I found out about Shackleton's heroics when I was in my forties, a man that refused to let a single member of his team perish and rescued every last one of them, after some of the most incredible feats of human endurance and skill.

That IS good news

It will be sad to see you go, stay in touch though

Worth the wait for that one Jules, absolute cracker

I don't think there is a set of tubes with AF for Pentax, besides the last thing you need is AF when using tubes as the target is so small i.e. an insects eye. Besides Pentax have a much more useful feature when getting in this close and that is Catch in Focus. Awesome function

Hang on in there Shaun, Pentax WILL do a FF

They are the ones you want, if you are using a Pentax A lens at about 50mm you'll get some fab results. However, this set is missing a tube, they usually are 13mm, 21mm and 31mm and a price of £69 is what I'd expect to pay for a full set

Mine wouldn't work on my K-7 but performed perfectly on my K-5iis maybe Pentax have upped the power on the later bodies?