IS (Image stabilisation)(Canon) and VR (Vibration Reduction)(Nikon) are optical systems used in DSLR lenses that help to stablize images when the camera experiences a shake in a handheld shot due to the movement of the hands. The motion sensors detect the motion and the optical element in the lens move the image accordingly to counter…

One of the very under-rated rules in photography is called the reciprocal rule. It’s a rule that gives an idea about the shutter speed that you have to use when taking hand-held camera shots.