From the George Lepp for the Canon Professional Network:
"We’ve had the ability to capture time-lapse images with Canon EOS cameras for some time. What was needed was an interval timer to attach to the camera to fire it at a regulated interval. This interval could be as short as 1 second to as long as days. To do this, you needed to purchase an interval timer (intervolameter) and carry it with you. Canon’s answer for advanced DSLRs is the TC-80N3 Timer/Remote Controller. It has several functions beyond being an interval timer and is usually found in my camera bag. But there have been numerous times that I’ve been out photographing and didn’t have all my tools with me, including the TC-80N3, and I was out of luck when it came to time-lapses.See the entire article on the Canon Professional Network.The new Canon EOS 7D Mark II has the interval timer built into the camera. Access the 4th Red Menu on the camera’s LCD and follow the procedure below. You will have the option of setting the number of captures from 1 to 99 or set to “Unlimited.” The time between each exposure can be set from 1 second to 99 hours, 59 minutes and 59 seconds."
B&H carries the Canon EOS 7D Mark II.