Profoto BackPack M Sony (Direct) anodised metal lens barrel surface

anodised metal lens barrel surface along with a weather-sealed construction to protect against dust and moisture

Four extra-low dispersion elements greatly reduce chromatic aberrations and colour fringing in order to produce a high degree of clarity and colour accuracy

a phenomenon known as focus breathing

This feature allows the camera operator to add filters over the lens without taking up a filter stage in a matte box

8 is also particularly adept at controlling aberrations throughout the focusing range

Profoto BackPack M Sony (Direct) anodised metal lens barrel surfaceProfoto's Backpack M for D1 Air or B1 AirTTL is a sturdy ballistic nylon pack with room for two B1 or D1 flash heads and accessories such as chargers, Air transmitters and expendables. The interior has padded compartments in gray nylon. Besides shoulder straps the pack has a top handle and exterior pockets for light stands.