Professional photographers get to take picture of blushing brides, precocious toddlers, and sometimes… naked ladies. If you’re gonna pull off this hat trick, you can’t whip a smartphone out of your pocket and begin shooting. Invest in the new Canon 6D ($2,099) and use the 20.2MP full-frame sensor and 11-point autofocus system to take shots that allow you to say things like “Now feed him some cake!”, “Throw the ball, Jacob!” and possibly “OK, Linda, now just undo that robe.”