Incidentally, your prices are wildly out.

The two current ones you list are more like £2699 for the Canon and £4999 for the Nikon.

I'm not sure what the point here is really. Time will tell. I have no idea whether or not Pentax will ever introduce a full frame DSLR. If they do, I won't be rushing to buy it as the APS-C models deliver everything I need in a more compact package.

If I had to have a full frame DSLR today then there are several on the market that I could choose from.

You've listed some cameras there that were frought with problems and delivered much worse image quality than a K-5. They also cost megabucks.

If and when Pentax introduce a full frame DSLR, what price level would you buy it at?

Insects and butterflies aree tricky subjects and a macro lens will serve best. I find 100mm is about right, so if you can find any make of AF macro lens then any should serve you well. I don't think there is a bad macro lens anywhere.

Pentax, Vivitar, Tamron and Sigma all offer, or have offered, suitable lenses.

If you can include manual focus lenses, then the cost is lower and we should add Elicar to the list.

I think I'd take lots of pictures on the desert island, then when I was resued I could process them all and have a fantastic record and set of glorious images never before seen.

I'll need extra batteries, or a charger and lots of coconuts. That was my Gilligan's Island thought, for those who know what I'm referring to.

This thread should be about people who are interested in the items on offer. We all understand about trust and we all understand the principle of Caveat Emptor (Let the buyer beware).

Prospective buyers are quite capable of sorting out what they want or do not want to do.

If only one lens it has to be the SMC Pentax-DA 18-135mm WR. That would cover almost anything that I might normally need to do.

JPEGs compress and approximate the information and by how much is defined by the JPEG quality setting. How much difference you will see will depend on how much detail there is in the shot and the final size you will view/print at.

Premium only halves the file size IIRC, which is not much compression, and for the highest quality results it makes sense to use it.

I wouldn't advise vaseline. I tried that once and it's just too messy.

You can buy soft focus filters from most filter manufacturers, or even use one of the Cokin type filters. Have a look on eBay and experiment. You couyld also use a sheet of glass to shoot through, perhaps glass that is not optically perfect may produce interesting effects.

Cling film is another possibility.

In other words, if we are deliberately destroying the resolution of our lenses it is possible to use a wide variety of ordinary items to see what happens.

The most expensive option is the Zeiss Softar 1 and Zeiss Softar 2, but that's probably in fantasy land for most of us....

My Mum is in her 80s and totally confused by all the different bags and bins she has. "I don't bother," she told me, "I just put it all in the black bin and hope for the best."

I have some sympathy for older people who are quite staggered by it all.