"S.Ross" <stevenross@mac.com> writes: > Sorry if this is a dumb question. > When you get a spec. for a lens, > for example: 24-70mm f3.5/5.6 > I know the f3.5 is the speed of the lens, > but why is the 5.6 listed? Lenses listed that way have different maximum apertures at the ends of the zoom range. That lens opens up to f3.5 at 24mm, but only up to f5.6 at 70mm. -- David Dyer-Bennet, dd-b@dd-b.net / New TMDA anti-spam in test John Dyer-Bennet 1915-2002 Memorial Site http://john.dyer-bennet.net Book log: http://www.dd-b.net/dd-b/Ouroboros/booknotes/ New Dragaera mailing lists, see http://dragaera.info
