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Review Summary
2022-03-30T08:24:14
Works great with Cook S4/i lenses
REED E.
UMB-1 Universal Mattebox
143 to 87mm / 5.63 to 3.43"
Exactly what I needed
By REED E.
Works great with Cook S4/i lenses
UMB-1 Mattebox Clamp On Ring (143-87mm) is a clamp on reduction ring for converting the Base or Swing Away version of the Universal Mattebox into a Clamp On version.