ISO is not too hard to understand: higher ISO values tend to have less detail than lower ISO values. This lack of detail is manifested in noise: hard edges in a noisy image are not so hard. Also, a solid surface will appear to be speckled. Modern cameras, especially ones made in 2014 and later,…
Category: ISO
Putting it all together: Exposure
“Exposure” is the choices made in the Exposure Triangle and how it looks in the final picture. An image is properly exposed when it is not too bright and not too dark.[1] Here is an image I took on July 9, 2014. The exposure triangle settings for this image were: Aperture: f/6.3 Shutter Speed: 1/800…
Primary Effects: ISO
The ISO[1] is the sensitivity of the sensor to the light that is hitting it. There is not much to understand here on this leg of the Exposure Triangle: The higher the number, the more sensitive is the sensor. The numbers we use for ISO include: 50, 100, 200, 400, 800, 1600, 3200, 6400, ……