I recently stepped up my photography from amateur to semi-professional, I bought a digital single lens reflex (DSLR) camera and decided to put to active use my knowledge of shutter speed, aperture, ISO and exposure settings. Due to my cash at hand I had to make do with a Pentax *ist D, Pentax's oldest DSLR camera. But it is just perfect for my need, it has sufficient megapixels of 6.3 which is just what I need since I only plan to post my pictures online ( http://olafusimichael.shutterchance.com ) and print some on a 5" x 7" photo paper. Also the picture quality is awesome, in fact it has excellent picture quality ratings from all the reviews I read. And best of all, it is very compact, so light-weight that I often hold it in one hand and I find it relatively easy to take with me everywhere.
In order to create a collection, I began snapping all the wonderful scenes around me: the bridges, sunset, busy highways and so on. But on a number of times I needed to adjust the image properties like contrast and temperature in order to better convey the message in the picture. To do this in the world of professional photography, Photoshop has been so recommended that you would believe it's the only option. But for an opensource freak like me, there most be another equally good alternative, and my search for this alternative led me to Google's Picasa. Though Picasa can't do multipoint cropping, background design and many other creative design stunts, but to make a picture eyepopping and adjust the exposure Picasa is the perfect tool.

