concession. n. 1. the act of yielding or conceding, as to a demand or argument. 2. something conceded. 3. (Commerce) Brit a reduction in the usual price of a ticket granted to a special group of customers: a student concession.
The term orb describes unexpected, typically circular artifacts that occur in flash photography â sometimes with trails indicating motion â especially common with modern compact and ultra-compact digital cameras.Orbs are also sometimes called backscatter, orb backscatter, or near-camera reflection.he orb artifact can result from retroreflection of light off solid particles, e.g., dust, pollen, or liquid particles, e.g., water droplets, especially rain) or other foreign material within the camera lens.
To those unaware of scientific and optical explanations, it is no wonder that orbs spook people (as Mumler's photos did 120 years ago). Most ghost investigators will admit that at least some orb photos are of ordinary phenomena. Still, they insist, there must be some orbs that defy rational explanation.o those unaware of scientific and optical explanations, it is no wonder that orbs spook people (as Mumler's photos did 120 years ago). Most ghost investigators will admit that at least some orb photos are of ordinary phenomena. Still, they insist, there must be some orbs that defy rational explanation.