See before you develop.
Every frame laid out. Mark it up in wax. For iPhone, iPad and the Duo.
The proof, is the work.
Proofing used to be a discipline. The roll came back as a contact sheet — every frame, small and honest, on one page — and the editor bent over it with a loupe and a chinagraph pencil and looked. Ticks for the maybes, circles for the picks, a hard cross through the frames that lied.
Proof brings that pause back. Your frames as a contact sheet, your eye and a wax pencil. Development can wait until you've seen.
Your roll,
laid out.
Open any folder and choose which frames go on the sheet. RAW and JPG land together, sorted and filtered by type and date.

Check focus,
on the sheet.
Drag a loupe over any frame. Tap to change strength. Open a frame with its exposure data and loupe in without leaving it.

Notes written,
in your hand.
Five chinagraph pencils, pressure-sensitive. Draw or type a note on any frame.

Darkroom or lightbox.
Pull the bulb to switch the whole bench, dark or light.


Print the proof.
Post the roll.
Print a frame, 4×6 to A4. Share a whole sheet as PNG, JPEG or PDF.


Your marks,
where you develop.
Write marked frames and sheets back beside your originals. Open them where you develop.

Straight from
your library.
Open any album as a roll. Nothing to import.

The bench in your pocket.
The same sheet, loupe and wax pencil. Proof a roll on the walk home.


The sheet unfolds.
Closed, a sheet in your pocket. Open, the whole bench. Proof follows the fold.
Proof in action
Proof is on the App Store.
iPhone, iPad and the Duo. Nothing leaves your device.
DOWNLOAD ON THE APP STORE →