Focal Length Field of View

Calculate the exact horizontal, vertical, and diagonal field of view for any lens focal length and sensor size to plan compositions.

Photography & Optics iOS Paid subscription

Available on theApp Store soonRequest TestFlight invite

Screenshots coming soon.

Who it's for

How the subscription works

Freemium

Auto-renews monthly via Apple's standard subscription system.
Cancel anytime in Settings → Apple ID → Subscriptions.
Refunds handled by Apple per their policy at reportaproblem.apple.com.
No third-party tracking or analytics SDKs inside the app.

What we don't collect

Your contact list, photos, location, microphone, or camera.
Any content you enter into the app (notes, logs, data) — it stays on your device unless you explicitly sync.
Identifiers used to track you across other apps.

Full details in our privacy policy.

TestFlight beta

This app is in private beta on TestFlight. To request an invite, email [email protected] with the subject line TestFlight beta: Focal Length Field of View.

← Back to all apps