EXPOSURE

Photography Exposure

 

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After you’ve fully understood the basic parts of a camera, a new challenge arises. Do you want to know the challenge? Definitely you would want to know, the challenge is knowing how to use your camera and now that means we have to be careful with a number of factors that contribute to you taking a good photo which now leads us to what we call Exposure.

What is Exposure in Photography?

In Photography exposure determines how light or dark an image will appear when it's been captured by your camera. How do you get this right depending on the kind of photo you want? It’s simple you just need to understand the Exposure Triangle.The exposure Triangle is Simply Made up of 3 things Aperture, ISO and Shutter Speed, mastering their use is an essential part of developing an intuition for photography.

Understanding Aperture

The best way to understand aperture is to think of it as the controls for the pupil of an eye – the wider it gets, the more light it lets in. Together, the aperture, shutter speed and ISO produce an exposure. The diameter of the aperture changes, allowing more or less light onto the sensor depending on the situation. When talking about
light and exposure, wider apertures allow more light and narrower ones allow less.

 

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Aperture is measured using something called the f-stop scale. On your camera, you’ll see ‘f/’ followed by a number. The number denotes how wide the aperture is which, in turn, affects the exposure and depth of field the lower the number, the wider the aperture. This may seem confusing; why a low number for a high aperture? The answer is simple and mathematical, but first you need to know the f-stop scale.

 

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The scale is as follows: f/1.4, f/2, f/2.8, f/4, f/5.6, f/8, f/11, f/16, f/22.

The most important thing to know about these numbers is that, from each number to the next, the aperture decreases to half its size, allowing 50% less light through the lens. This is because the numbers come from the equation used to work out the size of the aperture from the focal length. You’ll notice, on modern day cameras, that there are apertures in between those listed above. These are 1/3 stops, so between f/2.8 and f/4 for example, you’ll also get f/3.2 and f/3.5. These are just here to increase the control that you have over your settings.

Understanding Shutter Speed

Shutter Speed is one of the three pillars of photography, the other two being ISO and Aperture. Shutter speed is where the other side of the magic happens – it is responsible for creating dramatic effects by either freezing action or blurring motion. In this article, I will try to explain everything I know about shutter speed in very simple language.Shutter speed, also known as “exposure time”, stands for the length of time a camera shutter is open to expose light into the camera sensor. If the shutter speed is fast, it can help to freeze action completely. If the shutter speed is slow, it can create an effect called “motion blur”, where moving objects appear blurred along the direction of the motion. This effect is used quite a bit in advertisements of cars and motorbikes, where a sense of speed and motion is communicated to the viewer by intentionally blurring the moving wheels.

 

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speeds of 1/8000th of a second and faster. The longest shutter speed on most DSLRs is typically 30 seconds(without using external remote triggers).

Understanding ISO

It’s one of the three pillars of the exposure triangle; it can be very difficult to take good photos without proper understanding of what ISO is. Every photographer should thoroughly understand it, to get the most out of their equipment.In very basic terms, ISO is the level of sensitivity of your camera to available light. The lower the ISO number, the less sensitive it is to the light, while a higher ISO number increases the sensitivity of your camera. The component within your camera that can change sensitivity is called “image sensor” or simply “sensor”. It is the most important (and most expensive) part of a camera and it is responsible for gathering light and transforming it into an image. With increased sensitivity, your camera sensor can capture images in low-light environments without having to use a flash. But higher sensitivity comes at an expense – it adds grain or “noise” to the pictures.

Thank You Folks And Remember Practice Always Makes You Perfect in Every Way…. Practice Practice and

Practice……

References

For More Information and Research Visit

https://photographylife.com/what-is- iso-in- photography

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