Continuing the series of posts where I try to explain some of the basic concepts of photography in “beginner speak”. If you like the concept, have anything to add, any futher questions or want to suggest another topic then let me know. Either add a comment below or email me.
ISO is often referred to when discussing the settings used to obtain a correct exposure but what is it, what affect does it have on your photos and when do you need to change it?
ISO actually stands for International Standards Organisation who are a group that define univeral standards in industry so that everybody is working from the same hymn sheet. What does this have to do with photography? Not a lot. The reason we use the term ISO is because the organisation defined the standard for the sensitivity of 35mm film called the ASA. Anyway enough of of pointless facts, what does it affect in my photographs.