It's a system where people give you money and in return they get to prise a lens out of your locked shut grasp. A bit odd really, why do we do it?

Not a happy situation for sure. I'd be tempted to take it on holiday and just clone out the offending marks on any images where it shows. It could be fixed under warranty when you return.

Please don't double post in the forum, I'll leave this one an remove the other one. All that happens is you get two competing threads evolving.

Another thought I've had. Sometimes we buy a lens, regret it, and maybe even buy another one.

So, which lens have you actually sold only to find that you really missed it? And did you buy another?

My list:

SMC Pentax-M 100mm f2.8 - I've had three of these, although to be fair the first one was stolen.

SMC Pentax-FA 43mm f1.9 Limited - Bought, sold, regretted, now bought again.

SMC Pentax-A 35mm f4 - I've had four in total and still have one for the MV.

SMC Pentax-DA 10-17mm Fisheye - I regret selling it, but not replaced yet.

The 60-250mm is big and heavy in my book, but then it is a constant f4. I was pleased with its focusing and very pleased with its optical quality. No formal testing as yet, but first impressions are very favourable.

Lens safely received, all in good order, splendid packaging. Many thanks Bret.

That one's a whisker away from a pop group shot, getting in close pays dividends. Notice how much more intimate it is and how there's a feeling of being involved. That's what was missing in the other shots, which were more tentative and detached.

But don't give up because of one negative comment, otherwise the first serious rebuff you get on the street might be a bit unsettling too. Somebody, sometime will take exception to you taking their photograph.

The camera loacking up is mentioned in every DSLR manual. Build up of static charge or something like that. The cure is to remove the battery for a while and then start again. If this works, the manual says there is no need for a repair.

Avoiding strong magnetic fields is advised, so I suppose keeping the camera on an unshielded speaker would be the sort of thing to watch for.

The relevant bits are the K-5 and QS. The latter is, in my opinion, a really useful feature that makes the more expensive lens worthwhile on its own.

I don't like that at all - not very elegant. I'm not sure how it can be an advantage as the camera will still need a bag to carry it along with its accessories. It might as well be a DSLR.