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An electronic viewfinder (EVF) is a camera viewfinder where the image captured by the lens is projected electronically onto a miniature display. The image on this display is used to assist in aiming the camera at the scene to be photographed.
From the menus you can access in-camera HDR and Dynamic Range expansion settings, plus a series of digital filters. The Pentax 645Dâs viewfinder is much larger than on a DSLR, making it easier to manually focus.Despite this, it offers only a 98% field of view, which seems unusual for such a professional product (though is better than the 92-93% FoV on older film models).entax 645D review â Performance. In poor lighting or low contrast scenes the camera does struggle to find focus and there is no AF illumination. In regular light however it performs without a quibble, locking on to the subject with ease. In manual focus there is an AF confirmation light in the viewfinder however.