Single purchase from one person, who looks after kit kit very well.

The 150mm is an exceptionally good lens. A very nice present to receive.

Off topic comments removed.

Well I've just acquired some new lenses, so there's some playing and testing to be done.

SMC Pentax-FA 31mmm f1.8 Limited
SMC Pentax-FA 43mm f1.9 Limited
SMC Pentax-FA 77mm f1.8 Limited
SMC Pentax-DA* 60-250mm f4
SMC Pentax-DA* 300mm f4

Very early days yet, but the 77mm has had an initial outing. The 60-250mm was being used by Sue today and, interestingly, her first comment was that it focused very quickly. Considering some of the comments I've seen about this, it seems a bit of a contradiction.

I'll post some examples when there's time, but there's a lot of work on at the moment.

Still don't agree, but that's OK.

With focus stacking, in theory every time the focus point was changed the magnification would change. I presume the software corrects this, but does it do it seamlessly or are there odd side effects?

I've sold images from the I-10 and W90 and also the X90, so I don't see why not.

It's not really relevant though is it? I don't buy compact cameras to use at ISO3200.

A lot of this argument against the Q, even before it's properly seen, is based on preconceptions about its inability to cover extreme situations better than much larger cameras.

Nobody expected 35mm film quality from half frame or the Pentax Auto 110, but we had fun seeing what they could do. There wasn't such a reactionary stance to something new in those days. No internet perhaps.

I don't think so Mike. This is all pretty marginal stuff for most people.

It would be interesting then if you came across another one, just to see if there's a major difference?

Both the 120mm and 135mm should be sharp once stopped down and there should then be little to choose between them. Do you find this?

The 120mm is designed as a portrait lens and should therefore be softer wide open. Perhaps you have a poor sample of the 135mm?