The above picture of Brooklyn Bridge was
taken at ISO 100. Because of that, the image turned out to be noise/grain free.
But to achieve that, notice I had to use a shutter speed of 30 sec. If I would
have used a shutter speed of 1/500 and kept the ISO 100 and aperture f16, this
image would have been an extremely underexposed image, almost dark. To make the image visible, I would have had to raise the ISO. But again higher ISO means more noise. Again, since the shutter speed was 30 sec, I had to use a tripod to get
this shot. If I had tried clicking this hand held, it would have been a shaky
To sum things up, the world of exposure
entirely revolves around three elements; Aperture, Shutter Speed and ISO. Each
of them is inter-dependent on the other. Changing one element hampers the
performance of the other; hence it is important to understand the balance
between values of all three. Every photographer strives to come to an
acceptable shutter speed, aperture and ISO, which would give him/her a
perfectly exposed shot. With my personal experience, I would say you would understand
these elements in a much better way when you’ll go out with your camera on
field and try different settings. Try an indoor sporting event or a night shot.
Try the same shot with different settings and see how your output varies. Every camera has an inbuilt digital meter which shows you whether your shot is under or overexposed. Adjust your settings until you get a perfectly exposed shot.
Note that the meter runs from -2 to +2. A perfectly exposed shot will have the scale at 0. Minus values represent underexposed shot while the positive values indicate an overexposed shot.
So don't wait! Get out there with your camera and play with it! That is the best way to have fun and learn at the same time! I hope you liked reading my post. If you
have any feedback or questions, please feel free to write to me at
firstname.lastname@example.org. Happy clicking and happy learning!