So I've been learning from the book "Understanding Exposure" for a few days now but there are a few things that still arent clear to me. I understand the use of aperture (depth of field) and shutter speed (motion effects) and correct exposure. The problem for me is taking a light reading to create a correct exposure. Where do I take the reading from? I know this is completely different for every situation so I will give some examples. In each of these pictures can you tell me where the reading was taken and why? 1 http://img438.imageshack.us/img438/6627/1eh8.jpg 2 http://img451.imageshack.us/img451/3726/2id6.jpg 3 http://img436.imageshack.us/img436/1650/3kz9.jpg 4 http://img451.imageshack.us/img451/1761/4jw6.jpg the last one is from bryan peterson's book the others I just collected over the months since I got broadband. BTW im using an olympus OM2, the manual says it has "TTL direct 'OTF' light metering" if it makes any difference.