ISO and what it does!

ISO is one of the three category when talking about exposure for an image. The other two are Shutter Speed and Aperture, we will get to them later. When the sun is out your ISO setting should be set to your lowest setting and when you have less light available you use a higher ISO.

But be careful when using a high ISO because the higher the number 1600, 2000 etc the grainy the image will be. Grainy images means to have more noise in them.

Now typically for me I use ISO 100 when the sun is high and bright outside. If I am shooting indoors I typically use ISO 400 because it gives a little extra light to my images if the setting is set with low light, or natural light from outside when the sun starting to go down. Anything after ISO 800 are for indoors and events such as for wedding venues, but you have to watch it cause grain will emerge in the image. Which you will need to bring out the flash or a continuous light if needed, depending on your situation (photo/video). Grain in an image has become a artistic way of creativeness for some artist, including myself from time to time.

So what does ISO stand for? Well its abbreviation stands for “International Organization for Standardization.

ISO control the amount of light that hits your sensor to expose your image. The higher the number the more light and lower the number the less light enters your sensor inside your camera. Light is the most important piece of an image. If your shooting sports in the evening or nighttime, your need light (ISO) to freeze your subject or your image will be dark when your shutter speed is set to 1250 or higher. You won’t be using a flash I can tell you that, ISO is very image to understand how and when to use it. Stay tuned for more…..


Jonathan Barringer

I am a photographer based out of Maryland. I love to travel and explore different cultures and languages. I started photography back in High School and just recently a few years ago 2019 pick a camera back up and ran with it. I love photography and the priceless moment each image creates.