UMBRA second contact · eclipse automation for Mac

Conduct every camera
through totality.

A native macOS app that automates multiple cameras from contact-relative scripts — diamond ring, corona brackets, earthshine — firing to the millisecond, with spoken cues so you never look at a screen. The modern successor to Solar Eclipse Maestro.

Multi-camera, by serial

Run your whole rig at once. Each body is identified by serial and labeled — two identical cameras stay straight.

Contact-relative scripts

Times are relative to C1/C2/MAX/C3/C4 (and eclipse magnitude). Relocate 1,500 miles and your script just works.

Spoken cues

“Remove filters,” countdowns, “totality” — called aloud at the right instant. Eyes on the sky, not the laptop.

Simulate & rehearse

Scrub the whole eclipse, or rehearse the live wall-clock countdown — so you trust it before the one shot.

Real shutter control

Direct, fast camera control with confirmed capture and live drop-detection. Not a slow tethering layer.

Reads your SEM scripts

Imports the Solar Eclipse Maestro .txt format you already use — single file or per-camera.

Honest note: the 2026 release is donation-ware and free — we won’t charge for software that hasn’t survived a real eclipse yet. Join the waitlist to help test it.