Latitude and dynamic range
Posted 30 December 2008 - 01:00 AM
Here's my understanding. Please corroborate or correct it:
Latitude refers to the number of stops a given film or digital medium can record while still retaining detail. Anything outside that latitude will be either blown out or completely black.
Dynamic range refers to how digital media record information per pixel, so a 16 bit will have 16 levels of brightness between white and black (it gets more complicated when you factor color into the equation). The greater the dynamic range of a camera, the smoother its brights will roll into its darks.
Please tell me if I'm wrong.
Posted 30 December 2008 - 01:14 AM
Posted 30 December 2008 - 01:37 AM
Posted 30 December 2008 - 03:28 AM
Think of latitude as an output side parameter (portion of negative that goes to print film) and dynamic range as an input side parameter (full range as recorded on the negative).
Therefore you have the following equation:
Dynamic range = latitude (portion that you select as viewable) + extra information that says on negative