Photography is a form of art and not a lot of knowledge is required to pursue this great form of art. Any person with a thoughtful mind and good framing skills can do more than good in the field. But for anyone who wishes to professionally go ahead in this sector needs to know few basics in order to deliver better results.
Anyone who wishes to dig into the manual settings of your camera, you need to know about the 3 major pillars of digital exposure.
The shutter is a part of the camera that lets in light on the sensor of the camera. The time to keep the shutter open while exposing an image is totally dependent on the photographer when using manual mode. The light that reaches the sensor depends on the time the shutter is kept open for. Shutter speed is quite easy to learn but maybe complicated when it comes to mastering it.
In most of the cameras, the range for shutter speed lies between 1″/8000 to 30″. Yes, you read it right, 8000th part of a second to whole 30 seconds. Depending upon the requirement, a suitable speed must be selected in order to get best results.
For a still object, shutter speed may lie between 1/60 and 1/250 depending upon lighting conditions. Whenever the lighing is poor, a slower shutter speed is recomended and for a very bright environment, quicker shutter speed is recomended. But, with slower shutter speed, comes a challenge of being able to hold the camera exactly still for that period of time. This may seem easy till shooting on speeds upto 1/30 or 1/25, but it becomes quite difficult as we go further.
I recomend using tripod when shooting on speeds lesser than 1/30 to get clear images.
The above 2 images are clicked from exact same place, but the difference in shutter speed makes a lot of difference in the result.