You want to switch from auto to manual focus? The switch is on the lens.
You want to change the ISO? There's a button labelled ISO.
You want to set the exposure to 1/1000 of a second but get the camera to do the rest? One flick of the top dial to TV.
You want to set all the settings manually? Select M-mode and play away.
You want to zoom? Its a quick and intuitive twist of the lens
Battery that lasts several days, vast range of lenses to chose from, optical viewfinder, quick focusing, good colour reproduction.... the benefits go on and on.
DSLRs just are the best tools for the photographer.
BUT - there is a reason I didn't take it to Greenland, for there is one unavoidable downside: the weight.
The camera body plus two lenses (above) weighs 1.9 kg, and after lugging that collection around Australia and China I'd had enough. It had to stay behind.
So what did I take to Greenland and why?