This is the last of three blog posts associated with this week’s episode of Cosmos: A Spacetime Odyssey, which addresses life in the universe. Read the first and second here. Someday, in the not too ...
It always seemed ludicrous to me that an APS-C lens doesn’t simply display its 35mm equivalent focal length. Something like 52.2mm (for example) doesn’t look particularly tidy, sure, but a lens’ focal ...