Understanding Exposure

What I understand from Exposure

Reference: https://blog.katchup.com/understanding-exposure/

Aperture

Aperture expand and contract to let more or less light inside. Aperture settings tell you lens how much or how little light you want to let inside your camera to hit, and register on, your camera’s image sensor.

Reference: https://blog.katchup.com/understanding-exposure/

Reference: https://blog.katchup.com/understanding-exposure/

The higher the focal length, gives you less exposure because they represent smaller apertures. These settings allow less light into the camera and give greater depth of field.

Reference: https://blog.katchup.com/understanding-exposure/

Shutter Speed

Shutter speed on the camera controls how long light is allowed to travel through the lens and onto the image sensor. 

The settings are measure in seconds and fractions of seconds so the faster the shutter speed, the shorter time the image sensor is exposed to light. The slower the shutter speed, the longer time the image sensor is exposed to light.

Reference: https://blog.katchup.com/understanding-exposure/

ISO

The levels of a film’s sensitivity were measured in numbers that started at 50 and then doubled, so 50, 100, 200, 400, 800, 1600 and so on. The higher the number, the faster the speed ­– and the greater the sensitivity or responsiveness to light.

Noise

The only thing that happens when you increase the ISO of your camera to increase the sensor's sensitivity to light is 'noise' which looks like tiny dots or pixel on the image and can make images look blurry when they are blown up in size.

Reference:  https://blog.katchup.com/understanding-exposure/

From all of this information, it has giving me a better understanding of how exposure works. It will help me for future work and assignments.