Kodak Dektol brand_Fed The Godox TT685C is a

The Godox TT685C is a capable modern flash with full Canon ETTL/ETTL II compatibility and a built-in radio for remote triggering (radio transmitter sold separately)

this one is such a viewfinder and should fit the bill

that's because it's the rare pearl grey version

The Sony A7R IV is a modern mirrorless camera with a 62mp full-frame sensor and 5-axis stabilization built in- which is pretty impressive

Kodak Dektol brand_Fed The Godox TT685C is aDektol is Kodak's general purpose paper developer. Nothing too fancy here, but it's a classic for a good reason. This is a powder which mixes up to 3. 8L of working solution. Now made in the USA by Photo Systems, Inc.