ISO

• The higher the number {eg. 1600} the more sensitive your camera is to light - meaning more light is let onto the image/footage but the quality deteriorates.
• When we artificially light images the more noise you get in an image {noise = image grain}
• It’s not a good idea to use higher ISO settings just to combat poor light  - in poor light everything looks bad, and if it looks bad then the image will look even worse
• Increasing ISO speed above the sensors BASE ISO is just the same as under exposure.

ISO values correspond to exposure “stops,” with an increase of one stop being a doubling of the sensitivity. The relationship of ISO value to exposure stops is very straightforward: ISO 200 is a one-stop increase (doubling of sensitivity) over ISO 100. ISO 6,400 is six stops above ISO 100. If you increase ISO from 100 to 400, you need to balance that with a two-stop decrease elsewhere to maintain the same overall exposure value, say by changing the shutter speed from 1/125 second to 1/500. 

{website reference: https://www.digitaltrends.com/photography/what-is-iso-camera-settings-explained/}


ISO 100 Evidence:

REFLECTION:

• Here is my evidence displaying ISO 100, this footage shows how the lower the number the less sensitive the camera is to light, this is more visible due to it being indoors and the only light being within the scene would be the artificial light positioned above, making the ISO value to weak to correctly expose the footage. Where as using ISO 100 outside, the natural light balances it out achieving the correct exposure. 

ISO 1600 Evidence:

REFLECTION:

• Here is my evidence displaying ISO 1600, this footage shows how the higher the number the more sensitive the camera is to light. Having the ISO at a higher value allows us to artificially light the footage however this can result in more noise you get within an the footage.

Camera Basics - ISO