October 31, 2026Firmware update · GRLife Pro v1.39 · ADJ 1.3

GRLife Pro v1.39: light leaks – first-of-the-roll burns and edge leaks

The first frame of a roll, fogged while loading the film: the left of the picture burnt out behind a narrow orange-red fringe. Your GR can now do it straight out of the camera: MENU → GRLife Pro → Film texture has a fifth row, Light leak, with off, edge and first roll. Every photo gets its own leak.

A portrait of a woman with curly hair, the left of the picture burnt out to cream behind a narrow yellow fringe — Light leak set to first roll (straight). Rendered on a computer with the camera’s own algorithm; the photo was not taken with a GR.

What’s new

Film texture has a fifth row, Light leak: off, edge or first roll.
First roll: the left of the picture burns out (mostly white or cream, sometimes yellow or peach) behind a narrow yellow, orange and red fringe, straight, torn or in layered bands. Shot upright, it lands at the top or bottom, following the way the camera was turned.
Edge: an orange-red leak creeps in from a side or corner.
Every photo gets its own leak. It applies to film bay films only; black-and-white films change in brightness only, and the imprint stays on top.
ADJ 1.3: ADJ Mode Setting can take Light leak as a function (with GRLife Pro selected too), so you can switch it while shooting; the strip skips it when no film is in use.

First roll: straight, torn, layered bands

Top to bottom: straight, torn, layered bands. The colour and width of the burn change with every photo.

Three street scenes, the left burnt out straight, torn and in layered bands — Light leak rendered on a computer with the camera’s own algorithm.

Shot upright: top or bottom

Shot upright, the burn follows the way the camera was turned and lands at the top or bottom; in landscape it is on the left.

An upright portrait on a beach, the top burnt out to pale pink behind a narrow orange fringe — Light leak rendered on a computer with the camera’s own algorithm.

Edge: orange-red light from a side or corner

It creeps in from one side or one corner, narrow or wide; strongest at night, a warm veil by day.

Four photos with edge leaks: a lantern-lit storefront at night (right side and top-right corner), a beach (right) and a mountain road (top) — Light leak rendered on a computer with the camera’s own algorithm.

Black-and-white films: brightness only

With a black-and-white film the leak adds no colour; it only brightens and burns out.

A black-and-white street, the left burnt out behind a dark ragged edge — Light leak rendered on a computer with the camera’s own algorithm.

Where to set it

MENU → GRLife Pro → Film texture, fifth row, Light leak: off, edge or first roll. ▲▼ pick a row, ◀▶ change it. (Screen shown with the camera in Chinese.)

The camera’s Film texture page: five rows, the fifth, Light leak: first roll, highlighted

How to upgrade

Generate a new firmware in the firmware store and install it as before.
Open MENU → GRLife Pro → Info: when the second line reads v1.39 you are on the new version.
With a film bay film in use, pick the leak under GRLife Pro → Film texture; to switch it on the fly, assign Light leak in ADJ Mode Setting.

Good to know

You will not see the leak in live view; it appears in the saved JPEG, and JPEGs from RAW development follow the setting too.
Supports GR IIIx 1.60 / 1.70 and GR III 2.10 / 2.20; confirmed on a GR IIIx with 1.70.
Installing unofficial firmware carries risk: keep the stock firmware so you can go back.

Open the firmware store

Full release notes

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