I shoot with a 5D mk III and I need a second body for sports.
Mainly what I need is to shoot powder skiers/snowboarders coming down on the hill, and I shoot them or from the bottom of the mountain or from helicopter.
I know the best results would be with a 600 lens but I dont have it.
I was thinking that maybe the 400mm is not enough (5D3 2x TC III 70-200) so to buy a second used body.
Among crop bodies with one has the best auto focus and pretty good fps?
Any experience with that setup ether sport or wildlife? (50D/7D 2x TC III and 70-200 IS II)
If someone has some samples with that setup, please post them.
Nate, That Sounds Awesome!
The 7D would be a great 2nd body for what you want to do. It has the reach, and a very good AF system. I've shot some skiers coming at me in the middle of the mountain, so I didn't need the reach that you're talking about, such as shooting form the bottom of the hill or helicopter. But, one thing that I would add, is that when you're shooting from that far away, the AF system should have time to focus, as opposed to shooting "on the mountain" and having a ski racer busting by a gate.
With a zoom, you will have a greater oppurtunity to shoot the skiers for a longer period of time. First you'll zoom in all the way and as the skiers approach you, you will zoom out to get more shots as you keep them in your viewfinder longer.
With a long fixed lens, you will have the skier in and out of your FOV fairly quickly, unless of course you're shooting for the purpose of a particular jump or drop-off.
Actually, the 200-400mm +1.4X@560mm would be perfect for this. However, it's not out yet and I'm sure it will be very expensive. The other choices I would consider would be the 100-400mm, or the 70-200mm with 2X as you mentioned. The 70-200mm is better at the shorter end and the 100-400 is better at 400mm.
The AF is probably faster on the 100-400 since it doesn't have the extender. I don't own the 100-400, but I do own the 70-200 II and 2X. Like I mentioned above, if you're that far away from the skiers (bottom of hill or helicopter), then I don't think the slower AF with the 2X will matter. I will add that IS may help in the helicopter, although I'm not sure, as I've never shot out of a helicopter before.
I probably wouldn't buy the 100-400 just for this if you already own the 70-200+2x (probably better weather-sealed), since they're fairly close enough. I would consider a 100-400II if that ever comes out.http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=687&Camera=453&Sample=0&FLI=7&API=2&LensComp=113&CameraComp=453&SampleComp=0&FLIComp=7&APIComp=0
I'll see if I have any 70-200mm II +2X action shots when I get home tonight.