What is the Shutter speed?
Shutter speed a system in camera that determines how long light will pass through aperture and stay camera sensor. Shutter speeds might be 1, 1/2, 1/4, 1/8, 1/15, 1/30, 1/60, 1/125, 1/250, 1/500, 1/1000, 1/2000, 1/ 4000, 1/12000 and 1/16000 under one second or may take values of 1, 2, 4, 8, 16, 30 seconds over one second for long exposures. It is also possible to use shutter speeds from 30 seconds to several hours by using the remote control in the BULB mode, which is commonly used for taking photos of stars.
How to Use Shutter Speed on Camera
As the shutter speed increases, camera sensor reduces the amount of light and produces in darker images. If images are darker than expected, duration of the shutter speed should be extended.
In case of using longer shutter speeds more than one second, it may not be possible to obtain sharp images without a tripod. The answer to the question “At which shutter speed I need a a tripod?” relates to the light conditions, speed of moving objects, focal length (mm), and lens used. For example, if you are shooting at 100 mm, it is imperative to shoot at least 1/100 of a second to get a clear and sharp image.
To control the shutter speed, you need to use the shutter priority (S or Tv mode), full manual mode (M) or bulb mode of your DSLR camera. Knowing which shutter speeds should be used in what kind of shooting plays a crucial role in achieving clear, sharp or desired results in shooting.
Considering that you are shooting with a focal length of 55 mm, shutter speeds can be as follows: