What is Exposure Triangle?

Understanding Exposure Triangle in DSLR Cameras:

The exposure triangle is a useful way of describing the relationship between the three aspects of exposure (Aperture, Shutter speed and ISO). Adjusting just one of these will make the photo darker or brighter and will change the appearance of the photo based on what you have changed.Understanding each of these aspects of photography is necessary to have creative control over your shots. In the picture, each side of the triangle represents one of the three variables, Aperture, Shutter speed and ISO.

Aperture

- Small numbers (like f/1.4) have larger openings, which let in more light. (f1 - Shallow Focus)

- Big numbers (like f/22) have smaller openings, which let in less light. (f22 – More in Focus)

Shutter Speed

- Seeing 100, 250, 320, etc. on your viewfinder means “1/(number seen)”, like “1/100”.

- Try not to use 1/60 or less when handheld, that’s when you use a tripod or look for something steady.

- Using longer exposure (slow shutter speed) will let in more light. (More Motion Blur)

- Using shorter exposure (fast shutter speed) will let in less light. (Less Motion Blur)

ISO

- ISO is the sensitivity of your camera to light

- Lower numbers are less sensitive to light, which give smoother photos. (Less Noise)

- Higher numbers are very sensitive to light, which give very grainy and noisy photos. (More Noise)

Exposure: The light meter is different from the exposure setting.

- Keeping your light meter at “0” doesn’t necessarily mean it’s the perfect setting. Just don’t stray too far from the “0”. Adjust to your liking.

- Positive numbers on your exposure setting will make your photos brighter.

- Negative numbers make your photos darker.

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