Dave, I really don't know for sure, having never processed Kodachrome in BW chemicals. I always meant to but never got round to it.

I would start by trying a standard fine grain developer (Kodak D76 or Ilford ID11) and do a "clip test" - develop a short length before doing the rest of the roll.

I enjoyed using the X90 and only moved on to other cameras for the usual reason - an itchy "Buy Now" finger.....

The only thing you can do with Kodachrome now is to process it as a black and white film. You will get negatives.

I have a roll that I use in photography talks as a conversation piece.

It's a modern lens and I'd be surprised if it didn't, but there are owners here who can confirm this in due course.

Having said that, I'd look at the SMC Pentax-DA 12-24mm f4 lens, which is a superb performer.

I think your other conclusions are accurate.

If that is the same sized sensor as the Q then the 35-mm equivalent focal length starts at 22mm, which is quite wide. The long end becomes 572mm, which again is quite impressive.

Very little of that makes sense. If you have a lens that doesn't identify itself for some reason, then you put the focal length in manually, as you have surmised. The SR system will work with anything in front of it.

With a lens at say 20mm, the figure to enter in SR is 20mm. The minmum suggested shutter speed in conventional thinking would be 1/30s (reciprocal of 20x1.5) but with SR that might reduce to 1/4s, with care.

1/200s is ridiculous and may well be an error. Perhaps he meant 1/20s, although that's wrong anyway for an APS-C sensor.

I still think Kodak make the best films, even though they have discontinued the best of their slide films - Kodachrome.

I suspect Holywood will use film for a while yet as it's future proof in a way that digital formats are not.

Most of the classic TV I buy on DVD has survived only because of 16mm film copies. Even videotapes from the 1970s can be a nightmare and tricky to restore.

Or the camera can correct its own JPEGs very nicely as well.

Taking that on board Don, I'd go for the WG-2 as it is quite compact and can go with the family anywhere without worrying about it getting wet or damaged. Very liberating and something that extends the repertoire of the cameras you both own.

Noise will be a problem at high ISO values, but bear in mind what the camera will be used for. Also, don't forget the Q!

And don't forget it's for the wife, so what she wants is paramount otherwise you'll never live it down...