# Exposure - No, not that kind! Technology isn't infallible, and sometimes when trying to take a quick photo an odd menu pops up and ruins your day. That ever happen to you? Well, affect you it shall no longer! I'll take you through the basics of mucking around with exposure - from an iPhone to a fully-fledged DSLR, so that your photos are the best they can be - regardless of time of day! ## Calculating Exposure ## Case Study - A Pinhole Camera # ISO - Are your Photos Baked? While it's good comic relief to take "baked" photos eventually you're going to wonder how and why that happens. One possible explanation could be your **ISO** rating - where ## Calculating ISO - Light Level While a general understanding of what ISO does is more than enough to take photos it wouldn't hurt just to do a little maths to figure out why it does so.