Have you ever been to grocery shop??? Hope they do have a shutter door, which will be opened in the morning and closed in the evening. After the shop’s shutter is opened customers can enter the shop and purchase what ever they want.
Similarly, there is a special door in the camera, which will be closed by default. As soon as the shutter button is clicked, shutter door will be opened for a particular period of time and closes immediately. During this time, the light from the subject will be captured by the image sensor inside the camera. So, Camera's shutter door along with aperture will decide the exposure of the subject.
The speed at which the shutter door opened and closed is called shutter speed. If this speed is high, exposure time will be less and this will results action freeze of the subject (water Fall). In the below picture you can see water drops individually.
If the speed is low, exposure time will more and the action will be blurred. In the below picture you can see water drops forms like a line because of the long exposure.
Refer the below picture, the first one is with a faster shutter and the second one with a slow shutter.
Along with the shutter speed, you need to manage aperture to get the desired exposure. Refer the below collage of pictures. The first one with a slower shutter speed of 1/30 of a second and aperture is f/16, the second one with a 1/60 of a second and the aperture is f/11, the third one is with a fast shutter speed of 1/125 of a second and the aperture is f/8. As the shutter speed decreases the aperture f stops needs to be increased to decrease the amount of light entering into the camera. If you wont adjust the aperture as per the shutter speed, the picture captured may be over exposed or under exposed.
Getting the blurry shots during day time is difficult because of more light which in turn effect the exposure time. so, one way to reduce the shutter is by adding the polarizing filter’s. Other things needs to considered
- Keep the ISO as low as possible to avoid noise.
- Focus manually and use evaluative metering.
- Set the white balance to as per the lighting conditions.
- Mount the camera on a tripod for steady shot. With the slow shutters, even a small hand shake can blur the picture.
- Use self timer or remote to operate the camera. so that you do not introduce any movement as the shutter button is pressed.
- Switch on your live view to compose the shot easily, bending for a long time will introduce noise in your back and results backache.
- The most important thing is to keep the camera gear safely, moisture can create problems.
To create interest to the frame, add a foreground subject. The below picture was taken during the Dudh Sagar water falls trek, It is listed as India's 5th tallest waterfall,and is 227th in the world at 310 m. I waited for a long time to capture the water fall with the train on the bridge, finally decided that i had to move as there is no sign of the train from a long time. After covering a distance of 1/2 km, i heard the horn sound of the train and ran back in hurry. Luckily, by the time i reach the view point, the train just entering the bridge
Be creative, The water stream looks like it is rushing out of the mouth
Follow rule of thirds to please the eyes
Capture peoples joy to make the frame more beautiful
Framing will also adds interest.
The same effect can be applied to the flowing water too