Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Exposure Calculator
Find the new shutter speed needed to maintain correct exposure after changing aperture. Ideal for photographers adjusting depth of field without altering brightness.
New Shutter Speed
0.06 s
0.0167-0.125 s (1/60 to 1/8) invites camera shake handheld; brace against a surface or use stabilization to stay sharp.
The new shutter speed preserves exposure when you change aperture; bands follow the photographic handholding guideline that shutter slower than about 1/60 s (0.0167 s) risks shake.
Exposure Calculator
Find the equivalent shutter speed when you change aperture, keeping overall exposure constant. Essential when switching f-stops mid-shoot without altering brightness.
Required Shutter Speed
0.07 s
Between 1/60s and 0.5s, handheld shake is likely below the 1/focal-length rule. Brace the camera or use stabilization to stay sharp.
Shutter speed scales with the square of the aperture ratio; this bands the resulting exposure time in seconds against camera-shake and tripod rules.
Key differences
| Exposure Calculator | Exposure Calculator | |
|---|---|---|
| Category | Photography | Photography |
| Inputs required | 3 | 3 |
| Result | New Shutter Speed (s) | Required Shutter Speed (s) |
| What it does | Find the new shutter speed needed to maintain correct exposure after changing aperture. Ideal for photographers adjusting depth of field without altering brightness. | Find the equivalent shutter speed when you change aperture, keeping overall exposure constant. Essential when switching f-stops mid-shoot without altering brightness. |