ISO value may explain why a video is blurry #behindthescenes
Channel: Spilling Tea with Emily & Elizabeth
Date: 2024-03-08

Behind the scenes of video recording! Our video isn't coming out as crisp and clear as we'd like. Jerry knows it can't possibly be a resolution issue, and Elizabeth explains it is an ISO issue. The video is being recorded on the same camera phone, but comes out more blurry on the native camera app and more clear on a special camera app. The difference is that the special camera app allows manually setting the ISO and shutter speed, while the native camera app doesn't have these options.

ISO for digital cameras is similar to ASA for film cameras. ISO and ASA value is about how much light is required to get adequate exposure. The lower the ISO value, the more light is required, but the image comes out more detailed. The higher the ISO value, the less light is required, but the image comes out more blurry with pixel noise. 

Since we want to get as crisp and clear an image as possible, we want the ISO to be as low as possible. This means we need to get as much light onto the scene and into the camera as we possibly can. You can get more light into the camera by lowering the shutter speed as low as reasonable: 1/24th for video images. Then you can get more light available on the scene by using sunlight or brighter studio lighting.

Leave a comment if you have any questions about this.

Emily and Elizabeth get together every week to have tea and chat. Their chats cover a wide range of topics, such as cultural differences, philosophy, psychology, human behavior, and life in general.

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