Focus Enhancements 3x3" System 7 Polycontrast Filter Set
7 filter Polycontrast / MultiGrade set expands B&W paper emulsion into contrast levels 1, 1.5, 2, 2.5, 3, 3.5 & 4.
It's graded extra thick 3 x 3" filters are in individual pocket case.
Trimmable with scissors to fit filter drawer of virtually all enlargers.
Suitable for any variable grade B&W paper.
Additional information on Focus Enhancements 3x3" System 7 Polycontrast Filter Set or other products.
woven filter elements for ABS, fuel delivery, transmission, airbag etc.
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