We're seeing an increasing number of posts on our forums expressing confusion about ISO and asking why we don't test cameras based on their 'true' ISO values. So we've just posted the first of a two-part explanation of ISO, what it means, the role it plays in photography and how apparent discrepancies in reported values can occur.

Click here to read our first blog post about ISO and Sensitivity

Part two, covering the techniques increasingly being used to maximize highlight dynamic range, follows soon...