Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Camera Storage & File Size Calculator
Estimate what percentage of a memory card a session will fill based on your camera's megapixels, file format, and number of photos. Use it to plan card capacity before a shoot.
Exposure Equivalents Calculator
Find equivalent camera settings that produce the same exposure value when you change aperture, shutter speed, or ISO. Useful any time you want to swap depth-of-field or motion blur without altering overall image brightness.
Equivalent Shutter Speed
0.4 s
At 0.1 s and longer, motion blur is unavoidable handheld. Use a tripod and remote release; subjects moving during a 0.4 s exposure will streak.
The equivalent shutter speed comes from the reciprocity formula; these bands reflect the photographic rule that handholding usually requires faster than about 1/60 s (0.0167 s).
Key differences
| Camera Storage & File Size Calculator | Exposure Equivalents Calculator | |
|---|---|---|
| Category | Photography | Photography |
| Inputs required | 3 | 4 |
| Result | Total Storage Required (GB) | Equivalent Shutter Speed (s) |
| What it does | Estimate what percentage of a memory card a session will fill based on your camera's megapixels, file format, and number of photos. Use it to plan card capacity before a shoot. | Find equivalent camera settings that produce the same exposure value when you change aperture, shutter speed, or ISO. Useful any time you want to swap depth-of-field or motion blur without altering overall image brightness. |