HDR

 

5. View from Sinclairs hotel - Ooty
 
Snap #4 and #5 are HDR images. HDR stand for High dynamic range imaging.

It is a process whereby one uses multiexposed images and blends them into one final image. I generally take pictures at +2EV,0,-2EV and use Photomatix to get the HDR image. Though Adobe Photoshop CS2 has also introduced the feature to generate HDRs. I find Photomatix better and easy to use.  There are good tutorials on HDR at the websites of Adobe Photoshop and Photomatix.