ProMaster Professional Lens Cap - 39mm Booms Too much grease attracts debris

Too much grease attracts debris that will disrupt the seal and cause flooding

44") Diameter of focusing ring 62 mm (2

Rear insert-type

EMD with 8 blade iris diaphragm

The first addition to the Art category in Sigma’s Global Vision

ProMaster Professional Lens Cap - 39mm Booms Too much grease attracts debrisProMaster Professional Lens Cap 39mm ProMaster SKU: 3074 Helix SKU: PR3074 Overview The ProMaster Professional Lens Cap is more than your everyday lens cap. ProMaster Lens Caps are precision molded for optimum fit and use a center activated locking system that aids in the secure fit of the cap. ProMaster Professional Lens Caps have an eyelet hole for use with the optional ProMaster Cap Leash. The ProMaster Professional Lens Cap is the ideal