I just noticed an element in my 40mm pancake seems a tad loose.I really don't want to tear into the thing if I can help it but don't want to use a faulty lens.Will a bit of play effect my photos?

Without answering your question, Mike, it's a very simple lens and probably easily sorted in a few minutes if it's only a matter of an element or group having come unscrewed. Regardless of present picture quality, whatever is loose will only get looser in that neat little lens.

I should ask whether your 100% certain that it's an element that's loose or whether it's just that it rattles when you shake it. Most Pentax lenses do to some extent.

Best wishes,

Steve

Good point Steve.I'll have a look at it and see if it's just a rattle.

Mike