Promaster 7928 Softbox Speed Ring Set For Elinchrom Studio Flashes Rig Accessories A ZEISS T* anti-reflective coating

A ZEISS T* anti-reflective coating has also been applied to suppress reflections and glare for improved contrast and color fidelity

and a mode button that lets you easily switch between Still/Movie/S&Q to access still images

Two ED (Extra-low Dispersion) glass elements and one Super ED glass element strategically deployed in an advanced optical design effectively suppress axial chromatic aberration that is often a cause of resolution falloff in telephoto lenses

It can draw power from a normal household receptacle or from the included

Promaster 7928 Softbox Speed Ring Set For Elinchrom Studio Flashes Rig Accessories A ZEISS T* anti-reflective coatingPromaster 7928 Softbox Speed Ring Set For Elinchrom Studio Flashes