Olympus Zoom Gear PPZR-EP04

The technical details behind this accessory
Olympus Zoom Gear PPZR-EP04 offers a rubber construction that affords durability and precise fit for greater control over setting zoom magnifications when photographing underwater. It delivers zoom control with the M. Zuiko Digital ED 12-40mm f/2.8 PRO lens when attached to the OM-D E-M1 camera within the PT-EP11 underwater housing.
Key Features
For Use with PT-EP11 Underwater Housing
Allows Zoom Control with Lens in Housing
Rubber Construction
Top three Reasons we think you will love this accessory
Works great
Reliable
Useful