Aquatica 18719 Zoom Gear for Sigma 17-70mm f/2.8-4.5 DC Macro HSM & OS HSM Lens Globe 4 Top Mount for DSLR

4 Top Mount for DSLR Housing

screw on filter

Compatible with Fibre Optic Adapter for DS strobes and any Ikelite housing featuring fibre optic ports

Lubrication is not required but Ikelite silicone lubricant may be used if needed to clean the o-ring

you can convert your existing lights into a fluorescence set-up

Aquatica 18719 Zoom Gear for Sigma 17-70mm f/2.8-4.5 DC Macro HSM & OS HSM Lens Globe 4 Top Mount for DSLRAquatica Zoom Gear #18719 for Sigma 17 70mm f 2. 8 4. 5 DC Macro HSM & OS HSM Lens Compatible with the Sigma 17 70 f 2. 8 4. 5 DC Macro HSM & OS HSM version lenses in Aquatica's 18410, 18405, or 18407 Dome Port Special Order Product 4 6 weeks delivery.