Welcome aboard. John about sums it up above!

Set off nicely by the dark background.

No 3 again. I am always impressed by those who manage to function at that time of day.

Last one I had I put masking tape over the entire lens and took a Dremel grinder to the damn thing - It never got stuck again! (You may have realised by now that I take a very practical approach to problems!).

No, they won't work with PLM lenses - but I got the impression you wanted a 'cheap' one. The current 1.4 is a mortgage job!

As you know, I love old glass. Often, if a lens appears beaten up it's because it is a good one and has been heavily used. So when I saw a cheap Sankyo Kohki Komura f4.5 200mm with a bashed in filter thread (and a wonderful 18 blade preset aperture) I grabbed it. Turned out to be an awful thing so it sat in a drawer until a day or so back. It was raining so I took it to the workshop and carefully leveled it on the bench with the damaged filter ring firmly in contact with a bit of plywood. The end of a short bit of hardwood was curved on the sanding machine to match its radius. Several judicious and smart smacks later the filter ring was sufficiently 'straightened' to a proper curve that would now accept a long 55mm hood.

I put it onto the K1 and its poor performance had been transformed !




The damage is where it says 1:4.5. Even the front bezel had been dented by the original impact!






The glass is good apart from cleaning marks on the front element and that 18 blade iris ..... !



1 Did I say it had been raining?



2 It is good against the light too



3 And with strong contrasts (there is a tiniest bit of red CA against the petal edges).



4 Best I could find to get it to produce some bokeh



Not the sharpest lens in the bag but this was a good example of the difference a hood can make and I've now got a fully working classic.
These were all taken between f5.6 and f8.

There are several good ones to had off Ebay, such as the Pentax Rear Converter K T6-2X and their Rear Converter-A 2x-S. Being what they are there IS a bit of IQ loss but it is negligible with these two.

That's a good point regarding the thing having to use the SR mechanism to do its job. Should it be turned on or off? (I've never used it).

If they are anything like Sainsburys, check the use by dates of perishables as the pickers simply grab the first thing that comes to hand off the shelves. We've had things expiring the same day they were delivered!

It's lovely to be able to digitize one's old slides. I've just had a very quick tinker with it using the colour filters in Faststone Image Viewer.
Hope you don't mind: