In reply to Henry Iddon:
Interesting, thanks. It's pretty much the same story as all along, but good to see it updated to include contemporary spec cameras.
For climbing purposes, and something I've done a bit of in terms of photos:
>>"What 36 megapixels does give you is wiggle room. If you’re photographing something that requires a 400mm or 500mm lens, for example, and all you have is a 300mm lens, the extra resolution of your 36MP camera means you can comfortably crop in to a view you would get with that longer lens. If you regularly find yourself in the position of having to significantly crop your images that drastically you should either buy a longer lens or refine your technique."<<
That last sentence is no doubt sound, but not necessarily useful for some of us. Climbers or mountain photographers are often shooting things very far away. It would be great to have a big lens or two i.e. 500m, and a tripod, but it's often not practical.
In my case I often want to zoom right in to a photo of a mountain face at the closest detail I can, and there's a good chance that mountain face was a very long way away. Even a nice sharp 12-16MP loses detail when you crop and zoom to the degree I often want for terrain/route info. I might not bother going for 36MP but for my next camera I won't go below 16MP and probably more around 20.
I've had plenty of pics published from 8-12MP p&s cameras and a 8MP DSLR but I've found for more serious print jobs the publishers always want an image from a 20+MP full-frame if they can. Once you're used to the difference, it's easier to spot, though I think (heresy alert!) in many cases it really doesn't matter much.
Post edited at 09:14