Archived posting to the Leica Users Group, 2007/01/01
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Steve, I could be wrong, but think of it this way: the exposure value for the mid-tone must be the same, but the total number of photons gathered must be larger for wider angle lens. At 03:04 AM 1/1/2007, Steve Unsworth wrote: >I'm sorry Tina, but I don't get this. Imagine you were photographing a white >wall that filled the viewfinder for both the 35mm and 50mm lenses. The >exposure for each lens would be identical - i.e. both lenses would have the >same shutter speed / aperture. You can't say that because a lens is wider it >somehow sucks in more light at a given aperture - if that was the case hand >held meters wouldn't work over a range of focal lengths. // richard (This email is for mailing lists. To reach me directly, please use richard at imagecraft.com)