Stray light (flare) documentation pages

Introduction: Intro to stray light testing and normalized stray light | Outputs from Imatest stray light analysis | History

Background: Examples of stray light | Root Causes | Test overview | Test factors | Test Considerations | Glossary

Calculations: Metric image calculations | Normalization methods | Light source mask methods

Instructions: High-level Imatest analysis instructions (Master and IT) | Computing normalized stray light with Imatest | Motorized Gimbal instructions

Settings: Settings list and INI keys/values | Configuration file input

Page Contents

This page provides examples of stray light manifesting itself in images from real cameras. 

Examples

Image	Notes
	Ghost reflections, color shifts, and specular highlights caused by contamination on the windshield
	Ring pattern from the sun
	Reflection off an external baffle (phone case)
	Ghost reflections
	Diffraction spikes, veiling glare (loss of contrast), and a ghost reflection (green feature to lower left of sun)
	Petal flare (red flower shaped stray light)
	Veiling glare near sun, red petal flare to lower left of sun, green flare in lower right corner of image