Canon Community

Sometimes when I use the Auto Gamma function, DDP4 will adjust my image size or modfy the distortion correction. If I go to the Lens Distortion setting aft this, it's still turned on. If I toggle it off/on it doesn't restore the image to where it was...

Hello All, I have a refurbished EF 70-300 IS II USM I bought last year. Love the lens and its performance. However, occasionally on start-up it will make a kind of clicking or grinding noise. It functions just fine after that, and it doesn't do it ev...