I can't believe you are selling it.

I hate making offers, in case I offend. So give me an idea on what you think it should sell for and I will consider an offer.

What lens are you considering buying with the proceeds. maybe we can come to a trade agreement if I have something you want. cheers

Here is a link to the above lenses I have listed on Ebay, if anyone is interested.

Thanks for that Pete, My K7 has the same issue, and I couldn't figure out why : or how to change it.

The only lens I would take, would be the 35mm macro at the moment.

I plan on visiting a desert island in the not too distant future, perhaps you would be so kind as too lend me your treasured 31mm.
Or if a moment of complete madness should overtake you, maybe even sell it too me.
I regret never taking up an offer of 400quid 6 months ago

And you could remove the front element and use it too make a fire. I would never do that with the 31mm would rather starve first.

Reuben, Thanks for the info, One of the reasons I suspected it was the aspherical version is the font on the hoods are different from the aspherical and spherical versions. You can see it if you click on the japanese link on Boz's web page. And because the serial numbers were so close together also gave me reason to suspect.

Not yet Kris, still waiting for a reply.
What would be your guess ??

I thought of that Pete and made an adapter for it, I made mine out of a rear lens cap, I cut the top out of it and glued a filter to it, with the glass removed, but it makes the viewfinder so much darker when trying to compose and takes away most of your working distance which is only a couple of inches as it is.

I tried both ways and found the flash head in between worked best. cheers

Thanks HG its not easy with this setup.

No shots of the dust storm unfortunately. It was just breaking dawn when I left this morning and was too busy getting all the red dust off my car so I could get to work. It was quite eerie though, like a red dawn, I thought I was on Mars. Never seen anything like it.

I have been experimenting lately with reverse stacking lenses.

I am currently using a Pentax A 100mm and reversing a Pentax M 50mm 1.7 onto it, been getting some good results and have worked out a way to incorporate the Pentax AF160FC ring flash in between the two lenses. The built in hood on the 100mm is the perfect size for the flash head to clip neatly over it and you then just screw the 50mm onto the 100mm using a 49mm macro coupler. You get about 3" of working distance with it.
Great setup if you like to get in real close.

[IMG]http://i184.photobucket.com/albums/x261/ClarkyinAus/IMGP0591.jpg[/IMG]

And a couple of shots I took with it.
[IMG]http://i184.photobucket.com/albums/x261/ClarkyinAus/Spider-3.jpg[/IMG]
[IMG]http://i184.photobucket.com/albums/x261/ClarkyinAus/00K72430.jpg[/IMG]

I have just sold my AF080C and purchased a Pentax AF160FC, I used the AF080C on my K20 regularly with fantastic results, all manual operation though (not PTTL) but no big deal once you get it dialed in.

Usual settings I would use were, 100mm macro lens stopped down f22, shutterspeed 180, flash output at 1/4, flash compensation -1.5. These can be fine tuned of course.

What sort of price is the flash going for? I sold mine for a 130quid on E-bay, but that included original box, soft cases and adapters.

For some reason it just wouldn't work consistently with my K7 and would misfire regularly. But it worked without fault on the K20.

Good luck with it.