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In addition, lower ISO levels are ideal for landscape photography. When there’s more light sent into your camera, naturally, you use slow shutter speed.Low ISOs such as 100, 200 are used mainly in brighter conditions (like sunlight) or when your camera is on the tripod. This is because low ISO settings require more light, or low ISO is used in brighter environments. Low ISO values such as 300 and below are often associated with better quality photos when taken with a digital camera. Based on your camera model, ISO can have a base as low as 50 and have extra values such as 150 and 300 or 140 and 280. After that, the ISO scale goes up by a factor of two, going from 100 to 1600, e.g., 100, 200,400, and so on. The lowest figure is known as the basic ISO for that camera which is usually around 100. When users can’t brighten an image using shutter speed or aperture, increasing the ISO is advisable.Įvery camera has a range of ISO values. Because of this, ISO may help you take better photos in low-light situations and give you greater control over your aperture and shutter speed choices. The lower the ISO number, the less sensitive the camera is to light.Ĭombined with aperture and shutter speed, ISO forms the exposure triangle in photography and is fundamental to your images’ quality. It is a setting that lightens or darkens your photo. International Organization for Standardization, abbreviated as ISO, is one of the three standards in photography.