The jungle of Nagzira has absolutely outstanding beauty. A jungle that consists of a wide variety of trees and shrubs and vines, it is an example of an almost perfect ecosystem that can support and nurture a good variety of birds and animals.
Dioptric correction on a camera is the correction of the viewfinder focusing. In simpler words, it is matching the power of your glasses (if you have one) with the viewfinder.
In old times of film cameras, use of filters during photography was a common thing. A wide range of filters were used to achieve different effects. Amber, yellow, red were some of the common colour filters. These filters were used to suppress certain wavelengths thereby accentuating the effect of the others.