Anonymous ID: 65cda7 Dec. 30, 2023, 8:46 p.m. No.20156644   🗄️.is 🔗kun   >>6650 >>7150

>>2015663

 

Backscatter (photography)

 

In photography, backscatter (also called near-camera reflection[1]) is an optical phenomenon resulting in typically circular artifacts on an image, due to the camera's flash being reflected from unfocused motes of dust, water droplets, or other particles in the air or water. It is especially common with modern compact and ultra-compact digital cameras.[2][3]

 

A hypothetical underwater instance with two conditions in which circular photographic artifacts are likely (A) and unlikely (B), depending on whether the aspect of particles facing the lens are directly reflect the flash, as shown. Elements are not shown to scale.

Caused by the backscatter of light by unfocused particles, these artifacts are also sometimes called orbs, referring to a common paranormal claim. Some appear with trails, suggesting motion.[4]

 

https://en.wikipedia.org/wiki/Backscatter_(photography)

Anonymous ID: 65cda7 Dec. 30, 2023, 9:20 p.m. No.20156777   🗄️.is 🔗kun   >>6801 >>6823 >>6830

>>20156725

>>20156725

oops im wrong. it's not backscatter. it's fucking lens flare, you fucking fucktards!

 

Lens flare

 

A lens flare happens when light is scattered or flared in a lens system, often in response to a bright light, producing a sometimes undesirable artifact in the image. This happens through light scattered by the imaging mechanism itself, for example through internal reflection and forward scatter from material imperfections in the lens. Lenses with large numbers of elements such as zooms tend to have more lens flare, as they contain a relatively large number of interfaces at which internal scattering may occur. These mechanisms differ from the focused image generation mechanism, which depends on rays from the refraction of light from the subject itself.

 

https://en.wikipedia.org/wiki/Lens_flare