learn.howToCalculate
learn.whatIsHeading
A flash guide number calculator determines correct aperture and flash distance settings for photography lighting. Guide Number = aperture × distance. Higher guide numbers indicate more powerful flashes; knowing the GN lets you predict exposure without test shots.
단계별 가이드
- 1Input parameters for calculation
- 2Apply formulas based on selected mode
- 3Review and export results
풀어진 예시
입력
Sample values entered
결과
Calculated outcome
Results depend on parameter values
피해야 할 일반적인 실수
- ✕Wrong parameters
- ✕Missing adjustments
자주 묻는 질문
What does this calculator do?
Set parameters
How do I use this calculator?
Run calculation
계산할 준비가 되셨나요? 무료 Flash Guide 계산기를 사용해 보세요
직접 시도해 보세요 →