My current waterproof is a Pentax WG3, which is over 10 years old now and still working, though I only use it when necessary. It's next outing will be when I take the grandkids to Centre Parcs. I previously had waterproofs from Olympus and Sony. These had pretty decent IQ but both started to let in water after 2 or 3 years. The Pentax's IQ is nothing special but it has been very durable.

The Ricoh GR range will give you the same image quality as your KP and is truly pocketable but has a fixed lens. If you want a small camera with a zoom lens you will be looking at a smaller sensor, with image quality not much better than a decent phone. I'm not sure what is currently in production. I have an old Canon G12 which is versatile, but inferior image quality to the GR and not as small. My Pentax WR rugged camera is pocketable but the image quality is not as good as a phone.

I was so impressed with my GR that I recently bought a GR111x to give me a choice of focal lengths. On holiday I can put one in my left pocket and one in my right. Together they still weigh less than K3 with 20-40 and do the same job, with nothing slung around my neck. Better still, my wife can carry one and I carry the other. She gets the human interest stuff, while I do the boring landscapes. I generally find that the GR focal length is more useful than the GRx. I bought the clip on viewfinder for the GR but have never needed to use it.

I have both the GR and the GR3X. I have just tried to swap lens rings but they are not interchangeable.

I have a K3 and a K1. My Sigma 150-500 works on the K3 but not on the K1. Some firmware incompatability I expect. There have been a number of versions of that lens, so this may not be the case for all of them. Just something to be aware of.

Message sent re AF 540 FGZII and 18-250 lens

Maybe liquidambar (sweet gum).

Try to focus in live view. I don't understand why but this woke up the SDM on my DA200 that hadn't worked for months.

Thanks for this Rob. I had considered doing a photo book before but never got around to it. Based on your information I downloaded the CEWE software and had a play with it. Great fun and a bit addictive. Over the past few days I have compiled and ordered four different books. Just waiting for delivery now to see how they come out.

My K3 has the same problem. I think I know the reason though - I got caught by a large wave a couple of years ago and I suspect salt water has crusted around the switch. I have sprayed with electrical switch cleaner, which has helped a bit. The last time I was in Asahi Photo I asked Pramath about a repair and he said it should be simple enough to do. I'm putting up with it for now because it still works, just a bit stiff. If it fails completely I will get it repaired.

The limiteds are small and light. The new lenses are not. Other than that the new lenses have a lot going for them.