Sony NEX5N Garden Photos

Recently we bought a Sony NEX5N camera which is an ultra-small digital SLR camera with some full-size camera capabilities.  Other than its resistance to taking super closeup macro photos (which my little Nikon Coolpix L21 was surprisingly good at), I have been impressed all around with this Sony camera.  The feature which really sold us was the low light capabilities - up to ISO 12800, so it practically takes images in the dark!

This weekend I had my first opportunity to play with the camera, and took a number of photos of my mother-in-law's garden.  I've compiled the results into a few mosaics.  First, just in "normal" modes:

Good camera speed, good focus, good colour.

Then I discovered an effect called "Posterize", which was pretty cool for an in-camera feature, something you would expect to find instead in digital post-processing :

My favourite, though, was a feature by which you could select to see only green, blue, red, or yellow, and the remainder of the photo was in black and white :

Since you actually see the result through the digital display (which also swivels, to handle some extreme camera angles), I wonder if you could use this to help finding lost keys, if you marked your keys with a dot of one of these colours?