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Zacuto Optical Viewfinder
The Z-Finder Pro 3x is another one of Zacuto's Optical Viewfinders that allows DSLR cameras to have the correct form factor for video. It offers 3x focusable magnification (2.5x is available), a 40mm diameter Zacuto optical designed Anti-Fog lens, an eyecup preventing extraneous light leakage, a diopter and a field of view perfectly matched to 3 LCD screens.The diopter allows you to dial in the focus to match your eye. If you need extra focal point you can use the Z-Finder Extender Frames. The Z-Finder Pro 3x has a diopter range of -2.75 and up (unlimited with extender frames). These are semi-per

Price is $375.00
Price: $374.67