Future Canon DSLRs could be some of the first to switch to touchscreens for much of their input, a newly unearthed patent filing shows. The application shows an interchangeable lens camera that would use both a touchscreen and an optical viewfinder but which would implement a unique system to avoid accidental input on the touch display immediately below. By setting a determining which eye would use the viewfinder, the system could partly disable the touchscreen to prevent accidental input while still maintaining some level of control.
