Do you use video? I think 1DS3 is quite good. Adding a 24- 105 wedding follow-up is enough. Even if you buy 5D3, it is better to use 24- 105. If you don't have time to shoot the wedding follow-up, you can't wander around in front of the video recorder, because the focal lengths of 24-70 and 16-35 are relatively short. Let's talk about the lens you chose. 16-35 is a wide angle. What do you shoot with? How many shots need wide-angle shooting? 85. How big is your depth of field? Can't shoot local tyrants every time? 16-35 The edge of the photo is distorted and the people on the side are deformed. How can I hand in my homework You can't take group photos at the wedding. It's mainly a group photo, not for you to create or take wedding photos. You got it? The focal length of 24-70 is certainly enough, but can you run back and forth during the ceremony? There's nothing to shoot when you get there. You can't reach it unless you get there, okay?

You can do it. The combination of 5D3+24-70/60D+70-200 is perfect.

Having said that, I am a photographer. I have an unchanged camera. I used 1D2 and 5D2 to focus on 50 and 85. I rarely have time to change lenses after the camera. I recently bought another 24- 105, which finally saved a lot of trouble. But 24- 105 needs an external flash aperture, and F4 can't help it.