Exposure Triangle

I learned that camera exposure determines the lightness or darkness of a photo, and that only three things determine that. It’s called an exposure triangle and it contains. Aperture, ISO and Shutter speed. These all effect the brightness or darkness of a photo. Changing them can either lighten a darken area, or make a dark area well lit. “Achieving the correct exposure is a lot like collecting rain in a bucket. While the rate of rainfall is uncontrollable, three factors remain under your control: the bucket’s width, the duration you leave it in the rain, and the quantity of rain you want to collect.” ” You just need to ensure you don’t collect too little (“underexposed”), but that you also don’t collect too much (“overexposed”). The key is that there are many different combinations of width, time and quantity that will achieve this.” “A camera’s shutter determines when the camera sensor will be open or closed to incoming light from the camera lens. The shutter speed specifically refers to how long this light is permitted to enter the camera. “Shutter speed” and “exposure time” refer to the same concept, where a faster shutter speed means a shorter exposure time.” Means lowering your shutter speed, raising your ISO or changing the aperture can all affect the exposure of your photo, it may take lot’s of setting changes to get the correct amount of exposure for the perfect photo. Also different rooms contain different lighting, like going outside is going to very heavily affect your exposure, meaning changing lots of settings so you don’t get an overly exposed photo. Some rooms are meant for photos, where the lighting is near perfect and the only thing that  needs change is the settings on your DLSR. The exposure on your camera can either mean an excellent photo, or a really bad one. The settings seriously matter on your camera, so you can’t just wing it and hope they come out great. “A camera’s aperture setting controls the area over which light can pass through your camera lens. It is specified in terms of an f-stop value, which can at times be counterintuitive, because the area of the opening increases as the f-stop decreases. In photographer slang, when someone says they are “stopping down” or “opening up” their lens, they are referring to increasing and decreasing the f-stop value, respectively.” “Common ISO speeds include 100, 200, 400 and 800, although many cameras also permit lower or higher values. With compact cameras, an ISO speed in the range of 50-200 generally produces acceptably low image noise, whereas with digital SLR cameras, a range of 50-800 (or higher) is often acceptable.”

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