This is the help for FoCal 5 and the FoCal Mobile 3.0 apps. For FoCal 6, see the current help.

Test / Utility Information

Potential Hot Pixels – Dust Analysis

Help page 0805FoCal 5

The Potential Hot Pixel chart indicates the location of pixels which may be stuck in an bright “ON” state on the sensor.

Key:

  • Blue markers – indicate presence of potential hot pixels on the sensor.

Basic Interpretation

The Potential Hot Pixels display shows points detected on the sensor which cover a number of apertures and exhibit features more likely associated with hot pixels than dust spots.

This is NOT a 100% reliable detection of hot pixels, so it's important to review the images and check your camera before assuming that these points are indeed pixels which are "stuck" in a fixed state.