Silverlog Flash is made and published by
Simon Westgate.
AppBrain is an independent app data site and isn't affiliated with Simon Westgate.
The app name, icon, screenshots and description belong to Simon Westgate and are shown as
published on the App Store.
About Silverlog Flash
Silverlog Flash is a photo & video app developed by Simon Westgate.
User Ratings
The app has no ratings yet.
App Information
Silverlog Flash is freely available from the App Store. The app size is 40.20 MB. The latest version available is 1.2.1. The last update was on September 29, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since March 2026.
Description by Simon Westgate(from the App Store)
Silverlog Flash calculates flash exposure using guide numbers — the fundamental relationship between flash power, distance and aperture.
HOW IT WORKS Choose what to solve for and enter the other two values. Find the aperture for a given flash-to-subject distance, the maximum distance for a given aperture, or the guide number from a known distance and aperture. Adjust ISO to see how sensitivity affects your working range.
FEATURES • Guide number to aperture calculation • Guide number to maximum distance calculation • Guide number from distance and aperture • ISO adjustment • Metric and imperial distance units • Works offline — no internet connection needed • Clean, focused interface • Dark mode support
USEFUL FOR • Manual flash photography without TTL • Working out flash-to-subject distance for off-camera flash • Understanding your flash's effective range at different apertures • Film photographers using manual flash units
Part of the Silverlog photography toolkit. No account required. No data collected.
Each subscription will automatically renew 3 days before the expiration date for
the same time period. Subscriptions can be cancelled at any time before the renewal.
