It is mandatory to choose the right shutter speed. Here’s how it works and why you should keep it in mind during the shooting of any picture.
Hopefully, if you are reading it, you already understand that your camera needs a specific amount of light to get the right exposure. If you do not, I recommend watching my recent articles. The first was in this series On exposureAnd the other was About apertureBoth of them explain the information required to understand this article.
Four variables of exposure
There are four variables that come in the game for exposure. First, the amount of light is, or how bright the view is that you are shooting. In photography, it is known as luminance. Secondly, as I mentioned in my first article about the exposure, the higher the ISO setting, the less the image requires low light to catch. The third variable, as I discussed last time, is aperture. A wide aperture allows more light to enter the camera. Finally, the speed of the shutter comes, or the length of the shutter time is open.
What is shutter speed?
Our photographers were not very good in choosing the words used in photography to ancestors. There is no stability. As I mentioned about the aperture in my article, we have telephoto and wide-angle lenses. We must definitely have been called either the pre-narrow-angle lens, or perhaps the subsequent confeoto. (Just as the Greek word is for a distance, COTE means pass.)
He also found it wrong here. The word “shutter speed” is a false name. This shutter refers to the gap between opening and closing, rather than the shutter travels, which remains stable. The shutter time would have been better. However, the speed of the shutter is in general use, so let’s stick with it.
Why do we change the shutter speed?
The lower the interval between the shutter opening and the closing, the more effective it can prevent movement. We refer to it as a sharp shutter speed. Equally, if he is enough to stain the interval movement, we refer to it as a slow shutter speed. However, those details are arbitrary; There is no technical definition, and no fixed numerical value can be applied to them. A shutter speed would not be enough enough enough to stop the movement of a person fast if they were riding the bike.
The decision to stop or show movement is subjective
Mechanical and electronic shutter
Mechanical shutters usually have two curtains. One opens and the other is closed behind it. Meanwhile, as their name suggests, electronic shutters scan the pixel on the sensor line by line from top to bottom and capture the image completely electronically.
There are advantages and disadvantages for each. Mechanical shutters have moving parts. As a result, they create a audible click and, like all the mechanisms, can also wear it. On the other hand, there are no electronic shutters, no moving parts, so they are completely silent and more durable. For similar reasons, electronic shutters do not introduce unwanted vibrations to the camera that may otherwise show in the photo.
Nevertheless, electronic shutters are more prone to deformity while taking photographs of high -speed subjects. This phenomenon is known as a rolling shutter effect.
Mechanical shutters usually have a high sink speed. Flash photography with electronic shutters on some cameras may not be possible. Additionally, electronic shutters can cause banding in the image when used with LED lighting.
The quality of the image can be affected by electronic shutters, with a decrease in noticeable colors and tanwala range on some cameras.
Shutter priority mode and its major disadvantages
The shutter priority mode allows you to determine the shutter speed, and it will adjust the aperture and/or ISO accordingly. It is usually depicted as an S on the mode dial, however, on the contrary, canon uses TV (standing for time value). As I said earlier, there is no stability in photography.
Some wildlife and especially bird photographers use this mode to guarantee them to prevent action. Although there is an issue. In aperture priority mode, your exposure settings are limited by the most widespread and narrow aperture of lenses. On my everyday lenses, the aperture ranges from f/2.8 to f/22. It is 6 stops.
Consequently, you are largely protected from excessive under or oversexper. This will take me from 1/1000 seconds to f/2.8 to 1/15th f/22. However, the shutter speed range on my camera extends from 60 seconds to 1/8000 seconds, including 19 stops. It would be accidentally and disastrously or unspecified.
Imagine the picture of a rare bird. It is still sitting on a twig in the shade. Your shutter speed is set at 1/250 seconds, allowing you to get the best quality image. Suddenly, it blows in bright sun. In shutter priority mode, you have missed the action as long as you have adjusted the shutter speed. In aperture priority mode, the camera acts heavy lifting and sets the right shutter speed for immediate conditions.
There is much more in that method, but it is for future articles.
How fast should I use shutter speed?
This is a “how long a piece of string is a string?” Question.
If you ride in a car and look out of the window, you run away from the ground near you, while the far horizon passes more slowly. This is why you need very fast shutter speed to prevent the movement of subjects close to the camera. Similarly, if you use a telephoto lens, the moving subjects will travel in the field of view in a short time, if you use a wide-angle lens. Therefore, long lenses also require sharp shutter speeds.
The following is a very difficult guideline and not set in stone. As shown above, the real shutter speed you use is affected by the sensor size, lens focal length and proximity to the subject.
Camera shake avoiding
The narrow angle of the view of a telephoto lens will exaggerate your movement. Therefore, you should increase the shutter speed to avoid the spots from the movement of the camera. The old rule of thumb for handholding to 35 mm cameras was that you needed a faster shutter speed compared to a mutual focal length. For example, a 50 mm lens will require more than 1/50th second second shutter speed.
These days, most photographers use cameras with smaller sensor than 35 mm, which reduces the viewing area. Consequently, this means increasing the minimum shutter speed to prevent unwanted camera shake; Usually, doubling it provides a safe margin. On the other hand, image stabilization occurs in many cameras and lenses. This feature allows you to hand over very slower; I have handed a micro four third camera with 45 mm lens for two seconds.
Additionally, we are all different, and some individuals still find it easier than others. This is the only way to find out how you can gently hand over your camera and lens combination and try it.
Funny Shutter Speed Numbering
Like the aperture settings, each shutter stops in speed or doubles the amount of light killing the sensor. But something strange in the sequence:
Starting from 1 second, it is as follows at ½ second, second, 1/8 seconds, which makes sense. You will expect the next number 1/16th second in the sequence, but it is 1/15th. It then continues 1/30, 1/60, 1/125! (No 1/120), 1/250, 1/500, 1/1000.
The reason for those two anomalies is to simplify maths purely. This makes it easy for you.
an exercise
Fit into your camera with your everyday lens, stand inside the house in low light. Set your camera on aperture priority (A or AV on the mode dial) and set the ISO on 100, or 200 if you own a micro four third camera. Zoom the lens at your wide angle.
Use command/adjustment dial to select comprehensive aperture (lowest number). Indicate a camera on a subject, perhaps an ornament, and pay attention to the same shutter speed. Angry, with some cameras, you may need to brief the shutter release button in order to see the shutter speed in the display. take a photograph. Is it sharp or blurred?
Reduce the aperture size by a whole stop. This is probably three clicks of command dial. Take the same photo and note that the shutter speed has doubled. For example, if it was ranked 1/60 on F.4, it will now be at 1/30th at F/5.6. Did this photo get fast?
Repeat this practice to determine the fastest shutter speed on which you can hand over the camera without the image being blurred.
Now, zoom in and try exercise again. what do you search?
Next, get your subject to a friend. Ask them to wave on you. Change the aperture and take photos at different shutter speeds. Note how slow shutter speeds the person to blur in his hand. You can repeat this exercise with other moving subjects, such as passing cars or flapping flags in the air.
in conclusion
The intensity of light, with aperture and ISO, the shutter speed is one of the factors that balance the exposure. Fast shutter prevents movement, while slow shutter shows blur. This knowledge was shared in my previous two articles about the aperture, as well as the aperture, along with the measurement and exposure, you should give skills to have basic control over the exposure.
Apart from this, there is much more, but we will let you strengthen that information before going on them in future articles.
Next time, we will engage in autofocus.
