If the ISO is set to a specific setting, rather than Auto, it will not be automatically changed by the camera. You can engage auto ISO or, for more control, in TaV mode you can change the aperture and/or the shutter speed yourself, and the ISO will be adjusted to suit.

Wow. Images like #1 are the reason I don't even bother contemplating bird photography! Superb stuff. I especially like seeing how glaucous the swallow's plumage actually is.

The 50/1.7 and 28/3.5 are nice lenses!

There's a chap on flickr who has some Ektar shots taken at 'ISO 1600' by mistake, and processed normally. He managed to recover pretty usable images in PP! Link

I've heard it said that overexposure can produce extra vivid colours, and some people may not like that while for others it would be something to deliberately go for. But colour can be adjusted in post if needed. I did notice that there was a slightly pinkish skin tone in some of my pictures of people, so I just slightly desaturated the shots.

I'd heard pretty much the opposite! Having shot a couple of rolls, I have noticed there's huge detail in the shadows, really excellent dynamic range.

The MX is pretty but don't overlook the P series cameras which are pretty trouble free, more ergonomic shutter speed dial, and cost peanuts. The light seals do not have foam in them. I would grab a P30 and start shooting while you await an MX at the right price. Careful of CBBA though. (Cheap body buying addiction).

Fantastic! Would definitely be interested if I lived a little closer. Looks like it would be great shooting practice!

Very nice architectural shot Kris.

Some wickedly funny and well timed shots there!

You really are showing the lens off to it's best advantage! Those sun stars make me pine to get my old DA15mm back again.... Nice shot of the kid on the grass too. It's a great little lens.