I found it odd that they say some of the reasons to buy the Nikon are "Shoots RAW" and "Movie Continuous Focus", when Sony has both... In fact, the Sony has better video focusing as a result of the transluscent mirror technology...
hey I am a complete newbie to the world of photography and will get my cam in a week, So i am really un familiar with any of those terms hence , why I joined the site so pic a few tips
I have also been looking at the d5100 and the d7000 if they go in the sale boxing day how would you compare the sony to either of these, sorry to be apain .. kelly
As Cosmonaut said, RAW is a much heavier file that requires special software to read (this software should come with the camera also, but you can use 3rd party ones as well), but it has the advantage of not being compressed, which allows it to have more data (ie. more detail) than JPEG. If you are really interested in photography, you will eventually migrate to shooting in RAW, processing, and then convert to JPG to get the look you are after (you can recover data from shadows and highlights that you would otherwise loose if you shot in JPG alone).
Continuous focus means the camera never stops focusing. in the case of the nikon, it is a "true" reflex, so it has a moving mirror. Ussually you focus with the mirror down, then the mirror moves up to let light into the sensor (and stops focusing as a result), then it comes back down for the next shot. in case of the Sony, the mirror does not move (so in reality, they are not technically a DSLR - Digital Single Lens Reflex, but rather a DSLT - Digital Single Lens Translucent) because the mirror lets most of the light through to the sensor, but reflects a bit of the light up to the focusing sensor, which means the camera never stops focusing (even while in the middle of a shot).
When in video mmode, the Nikon uses the sensor itself to focus, but this type of focusing tends to be slower than the actual focusing sensor, so the Sony tends to be better at focusing while in video as a result of the TM (translucent Mirror) technology. Sorry if I confused you there!
If you are looking for used cameras, I say a Sony A700 for $400 on
eBay... That's a pretty good camera (although it still uses pentaprism and moving mirror instead of the EVF and translucent mirror), and it should leave some money in your pocket for a good lens (the price is only the body).