We can see where the RRP will be from this page at Warehouse Express, although no doubt final pricing will be lower.
http://www.warehouseexpress.com/buy-pentax-q-white-digital-camera-with-prime-len...
They are also listed at SRS, but only £20 deposit indicated so far, as usual.

Ah, a precious moment....

It's looking as though this subject was more difficult than anticipated - not many takers so far.

There's not much heat and glare in the UK maybe?

Yes indeed, well done. Hope the other issues raised have been useful though.

We are probably about at the APS-C limit at 16-18MP, using current technology. If it goes beyong 20MP then I pretty sure there will be problems with many of our current lenses, of all makes.

20MP+ sensors are probably in the realm of full frame cameras.

By next month this could all have changed of course.

You could get away with perhaps a step or two from the correct size, depending on the lens design.

The Hadley Pro is advantageous in the it's slim and has very fast access. Currently my bag contains:

Pentax K-5
18-55mm WR
31mm f1.8
77mm f1.8
55-300mm
Cards, spare battery, torch, pen, bird ID book, reflector, all lens hoods, paracetamol, model release forms.....and there's still room. Documents can be put in the rear zipped section or just slid down between the insert and the bag. This latter place is excellent for passports, travel documents, etc. as it's hard to access casually, so quite secure.

Being narrow, the bag sits close to the body so bulk is reduced.

This is how I load the bag:
[IMG]http://i240.photobucket.com/albums/ff250/johnriley1uk/036-Hadley-1.jpg[/IMG]
And remove items:
[IMG]http://i240.photobucket.com/albums/ff250/johnriley1uk/037-Hadley-2.jpg[/IMG]
In the centre section I have added an extra Billingham insert tio enable the camera to be inserted downwards, so not dust settles on the sensor, and to make a space for an extra lens hood.

It will always be a ring to use a larger filter on a smaller lens - the other way round would not be logical in that it would vignette.

Why not avoid the issue and call them stepping rings?

Sue and I have used Billingham for many years - currently usually the Hadley Pro - and there have been no issues marking camera or screen. Surely it's the inserts that would mark, if anything? They don't seem to. They are very plush and protect the equipment extremely well.

Have you had some reason to believe there's an issue?

It's an excellent lens:

https://www.pentaxuser.com/review/smc-pentax-da-35mm-f-2-4-al-lens-review-384

For the price, almost could be descibed as essential lens for anyone using the Pentax system. A lens hood is a good idea, so if you can't face the £57.00 price tage of the Pentax one then eBay is a good source. Maybe £10 for a Pentax clip on hood if you're lucky.