It's an unusual choice of focal lengths, a 35mm-equivalent of 30-60mm, but if the quality is there, the wide aperture is there and it's compact as well it would potentially replace quite a few Limited primes.

Could be good for travel?

Marmalade and cheese also work, and of course the old favourite Marmite and cheese.

Mixing flavours can have quite exciting results.

Old size was 12 x 12 x12 cm cube or 45 x 35 x 8 cm maximum. New size is 35 x 25 x 16cm or 45 x 35 x 8 cm.

Did your parcel fit into either of those? If it did then they may have made a mistake.

Royal Mail have kept their prices the same, but have increased the size that's allowed as a small parcel.

This should reduce our costs, not increase them.

The colours are very intense and I like the strange, mystic look of the colour in the second shot. It makes me think this is an Elven forest....

The third one has magenta/purple steps, which doesn't look right. This purple cast can happen in winter shade and the WB setting that will "normalise" it is...Shade. I've found this colour anomaly when shooting fungi against rotting tree trunks in woodland shade. It might have something to do with how the light is filtered by the leaves on the trees above.

High ISO becomes much easier if you shoot JPEG. This is an ISO 12800 shot from the MX-1, which has a much smaller sensor, and I don't see a problem with it. I would be interested to see if the K-3 is better or even as good, because it's good enough in all the cameras so far. Good enough for emergency use that is, when we're shooting black cats in coal cellars.

The 100% images result in different magnifications with the K-3 and K-5, thus introducing another variable.

What would we conclude the significance of that would be?

Strange comment really. To expand, you'll find most Pentax lenses will be OK on digital, which ought to be of interest on Pentax User. Other makes of lens can vary from being excellent to abysmal, and unless you have an extensive knowledge of them knowing which is which is a bit more complicated.

Older lenses can be excellent on digital, but some are not. Mostly the problem is caused by the light path exiting the lens not being parallel but at an angle. This causes light spillage between pixels at the edge of the frame. This particularly affects wider lenses.

Telephoto lenses can suffer from CA.

However, most Pentax lenses will remain very usable.

I tried that but thought the blue was far too vivid. It overwhelms the subject and it's the subject we want people to be looking at.