What app, what version of OS X, what iMac and what version of OS X do you have installed?
Without basics it's very difficult to assist you.
What app, what version of OS X, what iMac and what version of OS X do you have installed?
Without basics it's very difficult to assist you.
That's in Aperture and it's showing you the blown highlights. It's a feature not a problem.
View menu -> and unselect 'Highlight Hot and Cold Areas'
Much appreciated. Duh. Never noticed!
IMac Screen • Weird Red in Photo Apps • How to change please