Tool
Night Photography Calculator
Find starting shutter speed, aperture, and ISO settings for common night scenes.
Choose a scene, aperture, and ISO to get a practical shutter speed range to try first.
Calculator
Recommended Starting Point
1/60 - 1/30
Scene: City street at night
Settings: f/2.8 - ISO 800
Tripod: This range may be usable handheld, depending on stabilization, focal length, and subject movement.
Note: Good for handheld street scenes with artificial light. Watch for motion blur if people are moving.
These settings are starting points. Take a test shot and adjust for the actual light.
Starting Points
| Scene | Aperture | ISO | Shutter speed | Tripod? |
|---|---|---|---|---|
| City street at night | f/2.8 | 800 | 1/60 - 1/30 | Usually no |
| Neon signs / storefronts | f/2.8 | 400 | 1/125 - 1/60 | Usually no |
| Blue hour cityscape | f/8 | 100 | 2 sec - 10 sec | Yes |
| Car light trails | f/8 | 100 | 10 sec - 30 sec | Yes |
| Moonlit landscape | f/4 | 800 | 15 sec - 30 sec | Yes |
| Night portrait with ambient light | f/1.8 | 1600 | 1/60 - 1/30 | Usually no |
| Fireworks | f/8 | 100 | 2 sec - 8 sec | Yes |
| Star trails | f/2.8 | 800 | 20 sec - 30 sec | Yes |
How It Works
This calculator starts with practical exposure presets for common night scenes. When you change aperture or ISO, it adjusts the suggested shutter speed range using exposure-triangle math.
Opening the aperture lets in more light, so the shutter speed can be faster. Closing the aperture lets in less light, so the shutter speed needs to be slower.
Raising ISO makes the camera or film more sensitive to light, so the shutter speed can be faster. Lowering ISO gives cleaner files or finer grain, but usually requires a slower shutter speed.
Adjusted shutter = base shutter x (selected aperture / base aperture)^2 x (base ISO / selected ISO)
FAQ
What settings should I use for night photography?
Start with the scene type closest to what you are shooting. For handheld street scenes, use a wide aperture and higher ISO. For cityscapes, fireworks, light trails, and landscapes, use a tripod, lower ISO, and a slower shutter speed.
What shutter speed is best for night photography?
It depends on the subject. Handheld night photos often need around 1/30-1/60 sec or faster. Tripod scenes can use several seconds. Light trails and fireworks often need multi-second exposures.
What ISO should I use at night?
For handheld night photography, ISO 800-3200 is common. For tripod work, ISO 100-400 gives cleaner results if the subject is not moving.
What aperture is best for night photography?
For handheld or low-light portraits, use a wide aperture like f/1.8-f/2.8. For cityscapes, fireworks, or light trails on a tripod, f/8 is a good starting point.
Do I need a tripod for night photography?
You usually need a tripod when the shutter speed is slower than about 1/30 sec, especially for landscapes, cityscapes, fireworks, and light trails.
Can I use this calculator for film photography?
Yes, but treat the result as a starting point. Very long film exposures may require reciprocity failure correction, which this first version does not calculate.
Disclaimer
These settings are starting points, not guarantees. Night exposure depends on actual light levels, subject movement, lens stabilization, camera sensor performance, film reciprocity, and creative intent. Always take a test shot and adjust.
For film photography, very long exposures may require reciprocity failure correction. This calculator does not apply film-specific reciprocity correction yet.