Light Gathering Calculator

Calculate the effective light gathering capability of a camera system based on sensor and lens characteristics.

Sensor Format

Sensor Technology

Resolution Preset

Custom Resolution

× = 24,000,000 pixels

Aperture (F-stop)

Lens Transmission

Shutter Speed

ISO Sensitivity

Results

Pixel Size: μm²

Sensor Area: mm²

Effective Aperture (T-stop):

Light Gathering per Pixel:

Relative Light Gathering (compared to FF 24MP at f/2.8 1/60s iso100):

Relative Stop Change:

System Analysis:

Result = (Sensor Area / Total Pixels) × QE × (1 / (F-stop / Transmission)²) × shutterSpeed × ISO × Const

Where: