Canon BG-E14 brand_Sigma The Sony HVL-F56AM is a

The Sony HVL-F56AM is a full-size flash for cameras with Sony's "auto lock accessory shoe" (that's the weird reverse shoe they inherited from Minolta)

Image quality is the big deal here

You actually want to know what the f stop is

the carrier is fitted with roll supports on either side

The Hasselblad 41050 SWC Focusing Screen Adapter clips on to the back of any Hasselblad SWC camera and provides a bright groundglass screen for more precise focusing than the usual SWC method (guessing and hoping)

Canon BG-E14 brand_Sigma The Sony HVL-F56AM is aThe Canon BG E14 is a battery grip for the Canon EOS 70D, 80D, and 90D cameras. Takes two LP E6 style batteries (not included) or six AA batteries (also not included) and it provides a handy vertical grip. In excellent condition.