I have MZ5, Z10 instruction manuals and a P30n marketing leaflet . Free to anyone who wants them.

I took a look at the AP Pentax forum - most of the talk on there is about Nikon.

There was a reason it was on the top shelf...

I am amazed you still read AP. It was fun in the 80s just for the multitude of adverts and classifieds.

Andrew, the terminology is confusing with M42 lenses. When people refer to a manual M42 lens it means the aperture is stopped down manually usually via a button on the lens as opposed to the camera stopping down the aperture as the shutter is tripped when taking a photo. You have the latter - a lens stopped down to the taking aperture by the camera as you take the photo, as opposed to having to do it yourself before taking a photo. It looks like a nice lens but will need the appropriate body or an adaptor that pushes the pin in to make it useful for digital.

I have an L39 - I think they are reasonably common but a nice filter in any case.

Wow!

Does it have a tripod foot?

John - thanks , let me know your details.

The camera switches in and fires but no picture is recorded - it looks like the motherboard may have given up. The body and screens are immaculate (it was my first Pentax digital). Offered here before going to recycling.