Quote Originally Posted by MattKing View Post
Oops - decent into jargon - my apologies.

"Scene Brightness Range": this means the range of brightnesses in your scene, from the darkest shadows (with interesting detail) to the brightest highlights (also with interesting detail).

Film materials like popular black and white or colour negative film are capable of recording a scene with a very wide range of brightnesses (a "high SBR") in a usable way - you can wring a quality print out of them using common darkroom techniques.

Whereas transparency materials force you to make choices when you encounter a very wide range of brightnesses - you will lose shadow detail if you expose to retain detail in the highlights.

On the other hand, a projected transparency will display a wider range of brightnesses than a viewed print.