AquaTech Silicone O-Ring Grease Hard shaper one ELD Extra-Low Dispersion

one ELD Extra-Low Dispersion

4 DG DN from Sigma is an Art-series prime characterised by its advanced and updated optical design

The multifaceted and versatile tool offers you endless opportunities in just a single modifier

This also means it's easier to put the tripod and head in the bag

The lens further benefits from the use of one extra-low dispersion element and five aspherical elements to combat aberrations as well as a Zeiss T* anti-reflective coating to keep flare and ghosting to an absolute minimum

AquaTech Silicone O-Ring Grease Hard shaper one ELD Extra-Low DispersionThis AquaTech Silicone Grease should be used in small amounts on underwater camera housing controls that may stick. It should not be used on O rings.