600mm DX

NPhoto - - Test Team -

The 1.5x crop fac­tor of DX-for­mat cam­eras gives a 600mm lens an ‘ef­fec­tive’ fo­cal length of 900mm. Com­pared to shoot­ing with an FX body, this is sim­i­lar to fill­ing the frame with an area that’s two-thirds the width and two-thirds the height.

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