Straylight

Straylight refers to unwanted light that enters a camera lens or optical system and scatters inside, causing a hazy or foggy appearance in the image. This stray light can reduce contrast and image clarity, making details harder to see. It often results from reflections inside the lens or from bright light sources outside the field of view. Proper lens design, coatings, and shielding can minimize straylight, improving image quality, especially in high-precision imaging or scientific instruments.