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14 December 2001 Variable-length viewfinders with pupil-conjugate stability
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Abstract
Variable length viewfinders which provide constant focus, magnification and pupil conjugate stability, in motion picture camera systems employing different size zoom lens objectives, are described.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Iain A. Neil "Variable-length viewfinders with pupil-conjugate stability", Proc. SPIE 4487, Zoom Lenses III, (14 December 2001); https://doi.org/10.1117/12.450420
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