Custom Instax Mini film back designed for Bronica ETRS and ETRSi cameras. This accessory allows you to shoot instant film using your Bronica 645 system while maintaining the original camera experience.

The back is 3D-printed, lightweight and precisely fitted for the ETRS system.

Important notes:

Due to space limitations, this back does not include a dark slide. If you need to change the back, please use a changing bag.

Instax Mini image area is 62 × 45 mm, slightly larger than the 645 frame (56 × 42 mm), so a small black border may appear on the edges, as you can identify from the photos I share.

Manual film ejection system:
Knob – simple operation, compatible with all viewfinders

Because the film is not ejected continuously like in an original Instax camera, the development process may appear interrupted or uneven at first. If this happens, simply leave the film resting for a short time and the colors will naturally continue to develop.

Perfect for film photographers who want the Bronica medium format look combined with instant Instax results.