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Does anyone know what the "angle of view" is on a D3400? I don't mean when a lens is attached. I mean what is the angle from the corners of the sensor to the edge of the flange mount? I'm trying to calculate a recessed pinhole cap, to increase the angle of view for the photos, but knowing that angle of view between sensor and flange will help me decide how close the pinhole should be to the sensor. Right now, I have the distance that's perfect for the diagonal coverage of the D3400's APS-C sensor; so there's no cutoff (pic). However, at 15mm focal length that means a 76.2° angle of view. If that exceeds the angle of view from the sensor to the mounting flange then there will be vignetting from seeing the flange.
