http://www.popphoto.com/gear/2011/01/lab-test-nikon-d7000 In our autofocus speed test, while the D7000’s system was no slouch, it proved slightly slower than the Canon 60D across the board. To its credit, the Nikon managed to focus in less than 1 sec all the way down to EV -1, the lowest light level for which it’s rated to function. http://mansurovs.com/nikon-d7000-review if you have been using a pro-level DSLR like Nikon D300/D700, you will find the low light AF performance to be a little weak in comparison.