ISO is a good place to start, mostly because it's kinda quick and easy. And lazy me is likely to do things that are quick and easy. ISO basically, is how sensitive your film is to light. Lower ISOs, like 100 and 200 aren't as sensitive and thus are used in bright light situations. The higher the ISO, the more sensitive to light and thus a camera can "take in" and record more light in darker situations. So a higher ISO is one thing that will allow you to take photos in lower light situations.
|A really high of ISO 6400 - Tess sleeping|
The room was pitch black with the exception of the light from the screen on my cell phone that I used to light up Tess's face. Still with a high ISO, the meter was sensitive enough to take in enough light to record a good image.
So let's get specific.
#1 - a beginner's guide with some general guidelines to setting your ISO
ISO of 100 outside/bright direct sunlight
200 outside/bright indirect light
400 outside/overcast or inside/bright light
800+ inside/poorly lit or dark situations
|ISO 200 - Silly girls! |
We were outside in good indirect light. But no direct sunshine as we were in the shade.
#2 You should always select the lowest ISO possible given your lighting situation.
|ISO 100 - Liv at the Great Wall of China|
It was overcast, but there was some sunlight coming through the clouds and snow is very reflective, so light was abundant. Thus I was able to get away with an ISO of 100 and have better quality image.
So it's a balancing act when choosing your ISO. You'll want to select one high enough for your lighting conditions, but low enough to get the best quality photo. In short, set your ISO as low as you can, given the lighting conditions.
There will be a new poll in the next couple days. If you have any suggestions for future topics of Photography 101 posts, please comment. I'll see if y'all have any suggestions before I post the next one.