Canon Community

I made some pictures of a bathroom showroom with my canon 700D. I would like to see them on a TV screen, but they won't open. This message appears: 'Invalid or unsupported file'.I can open pictures taken with my Canon 5DMKIII.I have changed file size...

I attached a Canon 500mm f 4.0 IS II lens to a Canon 1.4 III extender and attached this combination to a Canon -1D X.Canon says this shouldn't be a problem. But there is a major autofocus problem. You need tp press the shutter again and again before ...