docholliday said:I "lay" the camera and lens into my left hand (with hand underneath, palm facing upward). The right hand doesn't carry much weight. I use my index finger to tweak focus and my thumb+pinky to change zoom. I've held the camera for 15+ hours and don't feel any fatigue from it (other than in my shoulders from having my arms up more than usual).
This is essentially what I do as well. My left hand is usually under the lens (or camera and lens if the lens is small) and my left arm is taking most of the weight - and it's not concentrated on a few fingers. I rarely ever support the weight in my right hand. I'm typically shooting with a 7D and 70-200/2.8 and this works well for me.
I basically operate as if I have a lens with a camera hanging off the back, rather than as if I have a camera with a lens in the front. Support the lens and operate the camera. If I am carrying this arrangement (not shooting), I hold the lens, not the camera.
If I shoot vertically, I like my right hand above the camera rather than below. The left hand is still holding the weight. For shooting vertically, I find this more comfortable than using a grip (although I haven't used one since my film days long ago
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