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Photography Calculators

Welcome to our Photography Calculators page! These handy tools help photographers quickly and accurately make essential calculations for capturing the perfect shot.

Easily calculate exposure settings, depth of field, hyperfocal distance, and much more. Just select your calculator, enter your data, and instantly receive precise results.

Spend less time on technicalities and more time behind the lens creating beautiful images!






Guide Number Results

Calculated Aperture

f/1.4

Recommended aperture for proper exposure

Maximum Distances

f/2.8: 20.714285714286m

f/4: 14.5m

f/5.6: 10.357142857143m

f/8: 7.25m

f/11: 5.2727272727273m

Guide Number Explanation

Understanding Guide Numbers
  • Higher GN means more powerful flash
  • GN = Distance × f-number
  • Valid for ISO 100 (adjust for other ISOs)
  • Varies with zoom head position
Usage Tips
  • Start with calculated value
  • Adjust based on modifiers
  • Consider ambient light
  • Test and fine-tune
Common Scenarios
Scenario Typical Settings Notes
Indoor Portraits f/5.6 - f/8 2-3m distance
Group Photos f/8 - f/11 4-5m distance
Event Coverage f/4 - f/5.6 Variable distance

Use these calculators to help determine optimal camera settings for your shots.