This calculator helps determine the appropriate shutter speeds for capturing motion or calculating long exposures based on focal length, subject speed, and desired motion blur.
Start with your values, or try a preset.
Enter Focal Length (mm), Subject Distance (meters), Subject Speed (km/h), Desired Motion Blur, and Camera Shake Factor in the units shown.
Read Minimum Shutter Speed for Sharpness (seconds) and Shutter Speed for Motion (seconds) in the results panel. Results update as you change the inputs.
Choose a preset to load an example, then adjust the values for your situation.
See the inputs and their calculated results.
Focal Length (mm): 200; Subject Distance (meters): 10; Subject Speed (km/h): 100; Desired Motion Blur: None (Freeze Motion); Camera Shake Factor: No Camera Shake
Minimum Shutter Speed for Sharpness (seconds): 0.005 seconds; Shutter Speed for Motion (seconds): 0.36 seconds
Focal Length (mm): 50; Subject Distance (meters): 5; Subject Speed (km/h): 20; Desired Motion Blur: Slight; Camera Shake Factor: No Camera Shake
Minimum Shutter Speed for Sharpness (seconds): 0.02 seconds; Shutter Speed for Motion (seconds): 1.8 seconds
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