Zone System
Quick Zone System Calculations
Precise Zone-Based F-Stop and T-Stop Calculation
Input your key light stop (Zone V) and select any zone (0–10) to get instant f-stop calculations for perfect exposure.
Choose manual zone selection.
View all zones at once for quick reference.
Customizable Display Options
Select exact, rounded, or tenths display modes to match your precision requirements.
Switch between Roman or standard zone numbering.
Choose your preferred stop type (T-stops or others).
Clear, On-Screen Explanations
Detailed equations and step-by-step explanations clarify each calculation.
Designed to simplify exposure adjustments and demystify the Zone System.
Industry-Standard Terminology
Uses familiar terms from professional cinematography and photography.
Ensures you communicate seamlessly with your crew.
User-Friendly Interface
Clean, intuitive design allows for quick adjustments on set.
Optimized for both rapid input and clear visual feedback.
Perfect For:
Cinematographers, photographers, and lighting professionals needing fast, reliable exposure calculations.
Anyone aiming to master tonal balance and exposure control with precision.
HELP
Q: What does Zone System do?
A: It calculates f-stop and T-stop values based on your key light stop using the Zone System.
Q: How do I compute an f-stop for a specific zone?
A: Input your key light stop (Zone V), select a zone, and the app will calculate the corresponding f-stop instantly.
Q: Can I customize the T-stop display?
A: Yes, you can choose between exact, rounded, or tenths display modes to suit your workflow.
Q: Can I customize the display for stops?
A: Yes, you can choose exact, rounded, or tenths display modes and select between T-stops or other types.
Q: Is Zone System designed for professional on-set use?
A: Absolutely, it offers clear explanations, industry-standard terms, and a fast interface for reliable exposure calculations.
Q: Supported iOS Version?
A: The app is optimized for iOS 16.0 and up.