Editing Canon EOS (section)

===Quick control dial===
[[File:Canon 60D Rear View.jpg|thumb|upright=1.2|Rear view of Canon 60D featuring quick control dial to the right of the LCD screen.]]
Most prosumer and professional level EOS cameras feature a large quick control dial (QCD) on the camera back.  The first (and only)  consumer-level EOS camera with this feature was the [[Canon EOS 760D|EOS 760D/Rebel T6s]], announced in February 2015. This feature allows easy adjustment of certain parameters using the thumb. The QCD is used for quick access to often-used functions that would otherwise require a more complicated procedure of button presses and dial clicks. Settings such as ISO button, Exposure Compensation button, or menus are all easily available through the QCD.<ref name=":0">{{Cite book|title=Canon EOS Rebel T5 For Dummies|last=Brand|first=Wiley|publisher=John Wiley & Sons, Inc.|year=2014|isbn=978-1-118-93362-6|location=Hoboken, New Jersey|pages=70}}</ref>

Cameras equipped with the QCD can easily be operated with one hand (forefinger on the main dial, thumb on the QCD) without taking the eye off the viewfinder.

A QCD is programmed to perform useful functions, which may include setting exposure compensation, setting of aperture in manual exposure mode, and scrolling of images and menus in digital EOS cameras.