M_Six wrote in post #15645316
I have a long way to go before I'm matching Christina and JV with their awesome dog-in-motion shots, but today I decided to give AI Servo a shot on the 6D with the 70-300L mounted. My neighbor's tiny papillon dog was bolting around playing fetch, so I grabbed a series as he ran towards me. 3 or 4 out of the 10 shots were hopelessly fuzzy, probably because I let the center focus point wander. A couple weren't bad, though. He's a tiny dog (as you can see by how big the golf ball looks in his mouth) and I wasn't too close, so this is a hefty crop.
That is one small dog, if that is a golfball, lol! Great shot - dogs running straight (or almost straight) towards you are always difficult for a camera to track - its much easier if they are running parallel I find. I've been trying to refine my technique at dogs running straight at me (for a series of shots) - I will typically get (say out of 10 sequential shots) 2 or 3 completely out of focus ones.... not sure why (nothing at all is in focus, yet it fired) and then the focus will be fine in the next image. It annoys me sometimes, but this is something I have found with every lens I own, so it comes down to me needing to refine my technique and AF settings 
When shooting dog agility, I found pre-focusing on the top rail of the expected jump was the easiest way to get the shot. This summer I want to try tracking the dog through the course with the "ignore obstacles" AF case enabled.
A tip for shooting dogs, which you have already done but for other people who want to shoot more dogs: Always be on the dogs level. I've seen a lot of shots that have been taken by people who shoot down at their dogs, as it is just a natural go-to position since that is how you see your dog every day. I crouch down or flatten myself on the floor/grass when shooting them. I especially like being flat on the ground because it gives a totally different look to the photo, since it is a perspective most people don't see on a regular basis with their dogs. The dogs are usually a little less intimidated by the camera/you too, since you are now on their level and your body language is no longer dominant by being higher than them.
7DSurfer wrote in post #15646023My lens is still on its way, so been doing a lot of perusing around the internet and I came upon this review. It solidify my decision about this lens... I'm not so sure if this hasn't already been posted here. Hopefully, this helps those that are still on the verge.
http://rhondadorsett.com/featured_70300mm_italy01.php That is a great review, I haven't seen that one before Thanks for sharing!
