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Aperture plates: Difference between revisions
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Each projector manufacturer (Century, Simplex, Kinoton) has different aperture plates, and most vary model to model. Most are not interchangeable, with the exception of Ballantyne Pro 35 and most Kinoton/Norelco/Philips models. | Each projector manufacturer (Century, Simplex, Kinoton) has different aperture plates, and most vary model to model. Most are not interchangeable, with the exception of Ballantyne Pro 35 and most Kinoton/Norelco/Philips models. | ||
'''"Fuzzy Edges" and [[Masking]]:''' Even the most perfectly cut aperture plate will not have a perfectly sharp edge. Because the film and the edge of the plate are not on the same focal plane, there will be a | '''"Fuzzy Edges" and [[Masking]]:''' Even the most perfectly cut aperture plate will not have a perfectly sharp edge. Because the film and the edge of the plate are not on the same focal plane, there will be a soft shadow on all edges of the image. To eliminate the soft edge, most venues will bring their masking in to cover these shadows. It is common practice to over-cut aperture plates very slightly so that the shadow spills onto the masking. | ||