Exposure Calculator

The exposure triangle — every image is a negotiation between light, time, and sensitivity.

Aperture

f/2.8

f/1.0f/32

Wide — shallow depth, low light capable

Shutter Speed

1/60

1/800030"

Motion may blur — creative or problematic

ISO

ISO 100

5025600

Clean

Scene EV

EV 8.9

Sunset— Last light on horizon

EV Scale

-3 Night8 Dusk17 Noon

EV₁₀₀

8.88

Stops from EV15

-6.1

Lux (approx)

1,176

EV 16

Sunlit snow/sand

Direct, harsh noon sun

EV 15

Clear daylight

Open sky, no shade

EV 14

Slightly overcast

Soft diffuse light

EV 13

Overcast

Flat, even illumination

EV 12

Open shade

Shadow on bright day

EV 10

Heavy overcast

Storm light

1.1 stops away

EV 9← you

Sunset

Last light on horizon

EV 7

Blue hour

20 min after sunset

1.9 stops away

EV 6

Indoor bright

Studio, retail

2.9 stops away

EV 5

Office / classroom

Fluorescent, diffuse

EV 3

Home interior

Lamps, warm ambient

EV 1

Night streets

Sodium vapor, LED signage

EV -1

Night scene

Moonlit landscape

EV -3

Moonlight

Full moon on open ground

EV formula: EV = log₂(N²/t) — N aperture, t exposure time in seconds. DOF calculated using circle of confusion method. Hyperfocal = f²/(N×CoC).See also: glitch genesis · neural observatory