RF (Rear Focusing) - What Digital Camera

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Every piece of equipment that comes our way, whether a camera, a lens or an accessory, gets the same level of careful scrutiny. We discover what products are good at and what they are not so you don’t have to. Tests are not just made in the lab, but our technical findings are also investigated in practical situations to establish what readers can expect in real-world conditions.

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A definition of RF (Rear Focusing)

Sigma, Sony and Nikon lenses with rear focusing systems.

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