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The sensitivity of the camera's digital sensor or film to light.
ISO Basics: Understanding what ISO is, how it affects your photographs, and how to adjust it on your camera.
Sensor sensitivity: Understanding how sensors work, how they measure light sensitivity, and how they relate to ISO.
Exposure Triangle: Learning how ISO, aperture, and shutter speed work together to form the exposure triangle.
Noise: Understanding what noise is, why it occurs, and how to reduce it.
Low Light Photography: Understanding how to use ISO to capture photographs in low light conditions.
White Balance: Understanding how to adjust white balance according to the ISO setting for optimum results.
Dynamic Range: Understanding how ISO affects dynamic range, and how to enhance it in post-processing.
Grain: Understanding the difference between grain and noise and how to handle them.
ISO Settings: Understanding the different ISO settings that your camera provides and when to use each one.
Camera Settings: Understanding how camera settings affect ISO performance and quality.
Auto ISO: Understanding auto ISO functionality and how it can be used to manage exposure in various situations.
RAW vs. JPEG: Understanding the impact of ISO and other camera settings on image quality in RAW and JPEG formats.
Post-processing: Understanding how to post-process a photograph taken at a high or low ISO setting in image editing software.
ISO for different photography genres: Understanding how different genres of photography require different ISO settings.
Mixed lighting: Understanding how to adjust ISO for mixed lighting situations to achieve the desired result.
High Contrast Scenes: Understanding how to use ISO and other camera settings to manage high contrast scenes.
ISO 100: This is the lowest ISO level available in most cameras. It produces high-quality images with little or no noise.
ISO 200: This ISO level is commonly used when the lighting conditions are good, and there is ample natural light available.
ISO 400: This ISO level is ideal for low light situations and produces images with some noise.
ISO 800: This ISO level is considered high, and it produces images with significant noise.
ISO 1600: This ISO level is considered very high and is used in extreme low light situations. It produces images with noticeable grain and noise.
ISO 3200: This ISO level is used in extremely low-light situations, indoor sports events, and concerts. It results in images with considerable noise and grain.
ISO 6400 and above: These are very high ISO levels that produce images with significant noise and grain. They are not suitable for most photography situations.
Auto ISO: This setting adjusts the ISO automatically based on the lighting conditions.
Base ISO: This is the native ISO sensitivity of the camera's sensor. It produces the highest quality images with low noise.
Extended ISO: Some cameras have additional ISO levels beyond their base ISO, which are reserved for extreme lighting conditions.