In photography,if we have to take correct and creative photographs we must consider the pillars in photography.they are called as "EXPOSURE TRIANGLE".These three are mutually related together.it is not easy to understand by the learning through paper or an article.it required more practical experience to understand those three concept. 1.ISO 2.aperture 3.shutter speed 1.ISO: ISO denotes the concept of brightness,it will decide the quality of photographs and the presence of grains in the image.if the image has more grains even in low aperture that the more light is tends to the sensor of the camera.ISO is the adjustment that present in the camera settings,as 100,200,400,800,1600,3200,6400,12800.....etc. The above image shows the variation of ISO. If the image has the ISO of 100,200,800 that image has the good quality in view.that is it has low amount of grains.otherwise it has the more ISO like 1600,3200...it h
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