1.4 Section 1: The Core Exposure Triangle

Shutter 1/8000 to multi-minute

Shutter speeds from 1/8000 down to multi-minute long exposures.

Where to find it

Viewfinder Shutter chip

Summary

Standard shutter speed chips cover 1/8000 down through whole-second exposures and into the multi-minute range used for pinhole, astro, and night work. Type a custom value in seconds for anything off the standard scale.

Tap to zoom — actual screenshot from the app

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How it works

Range coverage

1/8000 second matches the fastest mechanical and electronic focal-plane shutters. The slow end runs through 1s, 2s, 4s, 8s, 15s, 30s, one minute, four minutes, and beyond into the multi-minute territory used by pinhole and astrophotography.

Standard chips

Tap a chip to snap to a known click-stop value (1/1000, 1/500, 1/250, 1/125, 1/60, 1/30, 1/15, 1/8, 1/4, 1/2, 1s, 2s, 4s, etc.). The chip set follows the same full/half/third stop increment as aperture.

Custom seconds

For anything off the standard scale, type a value in seconds. customShutterSeconds accepts decimals (e.g., 0.7s, 12s, 240s), so you can match unusual shutter mechanisms or planned long exposures exactly.

Bulb pairing

Anything past your camera's longest standard shutter goes through Bulb mode. See 1.4a for how the meter integrates Bulb and 1.5 for the Bulb Timer that runs the actual countdown.

Implementation notes (for developers)
StandardShutterSpeed enum plus customShutterSeconds.

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