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Learn By Doing Photography

Understanding your ISO – Learn by Doing Photography

Learn by Doing Photography – Practice your photography skills with weekly photography assignments. I will post a new assignment every Friday, you can post your pictures at the bottom of this post or on the DigitalCamFan Facebook. If you have any questions please refer to the guidelines, if you have no questions jump right in any time!

Photography Assignment #2 – Take the same picture using different ISO settings.  Set your camera on 100 ISO and take a picture then change adjust your ISO to 200, 400, 800, etc. and take a picture. (I had my camera on aperture priority f/11 on a tripod for the shots below, the only thing I adjusted was my ISO setting)

This is a great way to know when your camera starts to see noise in the image. Of course all cameras are different so learn how your camera shoots. There are two times I really stop and think about my ISO. 1st I think of the noise factor. If you shoot at a higher ISO your image will have a grainy/noisy feel to it. If you shoot at lower ISO like 100 you will get a much sharper cleaner image. Secondly, I think about my ISO in a dark situation where there is just not enough light, like at a concert or even in my living room at night. If I set my ISO to 100 my shutter speed is going to be too slow for hand held, so you move to a higher ISO, by doing so you can shoot with a faster shutter speed or smaller aperture.

To set you exposure you need to understand the triangle – Aperture – ISO – Shutter, they all work together. last week we talked about aperture, this week ISO so you can probably guess where next week will be. Just remember if you adjust your ISO you need to change either your aperture or your shutter speed. If you adjust your aperture, you need to adjust either you shutter or ISO to get a correct exposure. Now I use the term correct exposure pretty loosely because what your camera see’s as a perfect exposure might not be what you see, you can always adjust the settings to over or underexpose an image, but we can talk about that another day. Today just set your camera to aperture priority and give it a try.

ISO

I have posted this video before, but it’s really the best tutorial I have found that talks about ISO. Jared Polin does an excellent job explaining it in a way that makes sense

Remember you can post your pictures at the bottom of this post or on the DigitalCamFan Facebook. If you have any questions please refer to the guidelines, if you have no questions jump right in any time!



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Discussion

One Response to “Understanding your ISO – Learn by Doing Photography”

  1. Nikon cameras with the new Sony sensors seem to be years ahead over canon in the noise department. Interesting article. Cheers!

    Posted by James Billett - Taunton Photographer | January 24, 2014, 5:21 am

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