Archived posting to the Leica Users Group, 2006/01/10
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Frank Filippone <red735i@earthlink.net> wrote: >So what does the Canon Chip in the Canon lens do that the Leica lens in >Aperture preferred AE mode does not do? It would seem that maybe the chip >or does something to denote the possible dynamic range of the lens.... > >I am very confused...and quite interested.... It has to do with the viewscreen (which the meter reads) which is optimized for maximum brightness and as an incidental consequence doesn't pass light recieved from the lens along a linear response function. The lens and camera have to communicate to hit the correct points on the curve. Doug Herr Birdman of Sacramento http://www.wildlightphoto.com