Profoto BackPack M Sony (Direct) a phenomenon known as focus

a phenomenon known as focus breathing

They have large colour LCD screens with an easy to follow menu system and in-built help

this lens is also compatible with DX sensors where it will provide a 36-105mm equivalent focal length range

It also boasts top-tier image quality with a 20 element in 13 group construction starring two Super ED elements and one aspherical element

Profoto BackPack M Sony (Direct) a phenomenon known as focusProfoto'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.