D600 (+grip) & Sigma 70-200mm 2.8 balance
With my D5100 it wasn't much of a question: the camera was way lighter. Yet, with the D600 (and it has a grip as well) it's a lot more balanced.
I'm actually afraid carrying it holding onto the lens might break the lens mount but obviously holding it on the other end, the D600, would make it pretty unbalanced. I'm normally using a Blackrapid Yeti strap (the one meant for 2 bodies but it's perfect for that combo) and I'm unsure on how to balance this (which side should be further down or balance it out) as well.
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