I would suspect it's been taken apart and not put together correctly. Another sample would be more cost effective than repairing this one, probably. I'd send it back as well.

All the best to you as well Gwyn, as you say let's hope that 2021 brings better news and better times. Meanwhile, let's make 2020 the best Christmas that we can.

Merry Christmas and a Happy New Year to everyone - keep safe!

Book received safely today, many thanks Bill.

The images are positively sumptuous; I just love those magnificent theatres!

The SMC Pentax-FA 43mm f/1.9 Limited lens was also made in Leica mount, although I don't know in what sort of quantities.

There are various things you can do. First off, wipe gently the contacts on the back of the lens and on the camera mount using a dry, soft, lint-free cloth. A microfibre lens cleaning cloth is ideal. Then I would do a factory reset of all the settings - you'll find the reset button in the menus.

As regards settings, consider using centre point only for the focusing and definitely not spot metering for the exposure. In the latter case, spot metering if not applied precisely may lead to random metering problems. I would also set to best quality JPEG and daylight white balance, plus a fixed ISO value, say 200 as a starting point.

Then you are ready for some test shots, starting with normal outdoor scenes. If there's still a problem, do please post some examples and we can perhaps see what's going on.

Just received an e-mail confirming despatch. Many thanks Bill, looking forward to seeing the book.

Does anybody have a Pentax RH-RB 49mm screw-in rubber lens hood for sale? It's the designated hood for the FA 70-200mm f/4-5.6 lens.

It does seem simpler in one way Steve but we're not supposed to link to anything that's taking donations. I suppose it opens the floodgates to all sorts of good causes that could be linked to, so the T&Cs exclude it.

I've also put a link to the book on the ADAPS Facebook page.