The Blue Spectrum Refractive Optics element virtually eliminates color fringing and chromatic aberrations by refracting shorter wavelengths of the visible spectrum (blue light)

1 x Cold Shoe Mount

Along with that

the lens is designed to be dust- and moisture-resistant for increased protection

and a USB port

Orca OR-112 XL Production Umbrella L-mount The Blue Spectrum Refractive OpticsHelp protect your gear from foul weather and sunlight with the extra large Outdoor Production Umbrella from Orca. The umbrella features an aluminum handle with a 3 8" female thread for attaching it to a tripod, stand, or other gear. Photographers will appreciate the large 51. 2" diameter, and strong fiberglass rods.