Not below £100 and 18mm though.

If you could find an old Tokina 17mm in PK mount (fully manual) then that would be about as cheap as it gets, expect to pay about £200-300 for one of those.

Don't forget that lenses of that focal length in the film era were ultra wide (usually fisheye) and were expensive, hence today they're very rare (and even more expensive).

I'm another lacking in imagination - I've been known as Hefty since I was a nipper and it's stuck with me all my life. I was a freakishly large child, reaching the height of 6'5" at the age of 12 and built like the proverbial brick outhouse - hence the name.

I'll go for dynamic range too.

If anyone does ask then it's KAF.

There's a good write up here explaining the evolution of the K mount and that site in general is considered to be a Pentax bible - worth bookmarking for future reference.

Very interesting set - shame she waited until 1978 before actually smiling for the camera though...

DA14
DA15
DA21
DA35 Macro
DA40
DA70
D-FA100 Mk1 (APS & Film)
D-FA100 Mk2 (APS & Film)
DA*200
DA*300

So that makes 10 I reckon

I've recently sold two LX's on eBay - both of which suffered from "Sticky Mirror Syndrome". One was as-new and boxed (fetched £565), the other was an average condition user model (fetched £231 including the FA-1 finder and SC-21 screen). Both would have required a service before being pressed into use - Harrow Technical offer such a service for around £90 which will restore your LX to perfect working order for years to come.

So you have a couple of choices; fix it for about £90 or flog it for a few hundred. I can't see binning it being a realistic option...

The Ricoh P mount allows a certain amount of automation on Ricoh bodies with a "P" in their model name. When mounted on a Pentax body they act as a PK lens, not a PK/A (manual mode only in other words).

Take care, the pin that sticks out to allow the Ricoh P cameras to control the lens will often get stuck in the AF hole on modern Pentax cameras. You need to remove this pin from the lens before using it on a Pentax body.

Hope that helps.

I shall be there later in the morning, needless to say I'm looking forward to fondling the 645D...

The earlier versions are pre-set and have the aperture ring at the front - operation is fully manual. Mid-era versions have an Auto/Manual switch and are similar in useage to Takumars. Late versions are Auto-only and require a small modification before they can be used on a digital SLR.

All versions are identical optically (based on the Zeiss Biotar 58/2) but the earlier versions are more convenient to use on a modern camera. Having said that the later (Auto-only) ones have the most advanced coatings and offer the best resistance against flare.

There are indeed different marks to show which factory produced the lens but the majority will have come from KMZ. There's no particular reason to favour one factory above another though - quality control was pretty similar at all of them.