Read Noise Calculator


Read Noise Calculator

Input fields in white, hit calculate!

The Read Noise calculator provides you with a helpful tool which allows you to calculate the read noise of your camera. The read noise is a measure of the uncertainty associated with each image acquisition and is a function of the camera system.


  1. Take the difference between 2 bias images.
  2. Enter the Standard Deviation of the pixels in the image.
  3. Enter the Gain value of the camera (e-/ADU)

If you do not have the gain value for your camera, use our Mean Variance (Gain) Calculator.

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Download the Advanced Feature Set brochure
for Evolve EMCCD cameras.