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Question What Size Patterns Do Source Fours Use and What Are The Image Diameters and Focal Lengths? Answer Source Four uses "A" and/or "B" size patterns and Source Four jr uses "M" size patterns. Type Outer Diameter Max Image Diameter A 3.93"/100mm 2.95"/75.0mm...
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Fixture Pattern Holder Color Frame / Doughnut Size Source Four 70 & 90 degree A or B 7.5" x 7.5" Source Four 19, 26, 36, & 50 degree A or B 6.25" x 6.25" Source Four 14 degree A or B 7.5" x 7.5" Source Four 10 degree A or B 12" x 12" Source Four 5 degree...