photography calculators

Exposure Calculator

Calculate equivalent exposure settings using the exposure triangle (aperture, shutter speed, ISO)

About this calculator

The Exposure Calculator helps photographers calculate equivalent exposure settings using the exposure triangle principles of aperture, shutter speed, and ISO. This tool is essential for maintaining proper exposure while adjusting camera settings to achieve different creative effects. Whether you need a faster shutter speed for action shots, a wider aperture for shallow depth of field, or different ISO settings for varying light conditions, this calculator ensures your photos remain properly exposed by automatically adjusting the other settings accordingly.

How to use

Enter your current camera settings (aperture, shutter speed, and ISO) into the calculator. Then adjust one of the exposure triangle elements to your desired value. The calculator will automatically compute the equivalent settings for the remaining parameters, ensuring your final exposure remains unchanged while giving you the creative control you need.

Frequently asked questions

What is the exposure triangle in photography?

The exposure triangle consists of aperture, shutter speed, and ISO - three camera settings that control how much light reaches your sensor and determine your photo's exposure.

Why would I need equivalent exposure settings?

Equivalent exposures let you maintain proper brightness while changing creative effects like depth of field, motion blur, or image noise for different shooting situations.

How do aperture, shutter speed, and ISO affect each other?

These three settings work inversely - increasing one requires decreasing another to maintain the same exposure. Each adjustment impacts both exposure and artistic elements of your photograph.