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Backscatter
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== In photography == {{main|Backscatter (photography)}} [[File:Sand Particles.jpg|thumb|Light from a [[smartphone]] flash reflecting [[sand]] [[particles]].]] The term backscatter in photography refers to light from a [[Flash (photography)|flash]],or [[strobe]] or video lights reflecting back from particles in the lens's field of view causing specks of light to appear in the photo. This gives rise to what are sometimes referred to as ''orb artifacts''. Photographic backscatter can result from snowflakes, rain or mist, or airborne dust. Due to the size limitations of the modern compact and ultra-compact cameras, especially digital cameras, the distance between the lens and the built-in flash has decreased, thereby decreasing the angle of light [[reflection (physics)|reflection]] to the lens and increasing the likelihood of light reflection off normally sub-visible particles. Hence, the orb artifact is commonplace with small digital or film camera photographs.<ref name="Fuji">{{cite web|title=Flash reflections from floating dust particles|url=http://home.fujifilm.com/products/digital/shooting/flash.html|website=Fujifilm.com|publisher=Fuji Film|access-date=19 June 2017|archive-url=https://web.archive.org/web/20050727000507/http://home.fujifilm.com/products/digital/shooting/flash.html|archive-date=July 27, 2005}}</ref><ref name="Baron2008">[[Cynthia Baron]]. ''[https://books.google.com/books?id=1c8LAAAAQBAJ&pg=PA310 Adobe Photoshop Forensics: Sleuths, Truths, and Fauxtography]''. Cengage Learning; 2008. {{ISBN|1-59863-643-X}}. p. 310β.</ref>
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