The Story
If you want to use your lens zoom function while taking photographs underwater, this zoom gear should be used. This Sea & Sea Zoom Gear is used to manually focus the Sigma Macro 70mm F2.8 EX DG lens when used in a Sea & Sea housing for any camera. Sea & Sea precision machined zoom gears are manufactured from either anodized aluminum or durable plastic polymer. Both versions are corrosion resistant. Easy to install in housing.
Description
If you want to use your lens zoom function while taking photographs underwater, this zoom gear should be used. This Sea & Sea Zoom Gear is used to manually focus the Sigma Macro 70mm F2.8 EX DG lens when used in a Sea & Sea housing for any camera. Sea & Sea precision machined zoom gears are manufactured from either anodized aluminum or durable plastic polymer. Both versions are corrosion resistant. Easy to install in housing.
