Specification :
Sony's FDA-SV1 Optical Viewfinder resolves the problem in the form of a shoe-mounted, glass optical finder that matches the field of view (approximately 84°) of an NEX 16mm f/2.8 lens, which is considered by many to be the best-suited lens for Sony NEX-series Alpha cameras. With the FDA-SV1 Optical finder in place, the camera's autofocus and TTL exposure systems monitor the technical side of the equation while you concentrate on framing and capturing pictures without having to block light stray sunlight while squinting at a 3-inch LCD from arm's length. And for many, the Sony FDA-SV1 Optical finder is what makes an NEX-series camera the camera it was meant to be.
