Neoca 4.5-5cm Viewfinder tiffen This is a big backpack

This is a big backpack (interior dimensions are approximately 14x38x42cm) with unusually large exterior pockets on the top and sides

That's right: zero batteries

Designed for use with Sony E and FE mount cameras that use Sony's Multi Interface shoe

but enough for nearly any application

Neoca 4.5-5cm Viewfinder tiffen This is a big backpackThis small auxiliary viewfinder mounts to a standard accessory shoe and provides a viewfinder with framelines suitable for lenses from 4. 5 5cm (or 45 50mm, in more contemporary terms.) It even has a parallax correction adjustment for shooting distances down to 1. 7 feet. In excellent condition, with case.