Archived posting to the Leica Users Group, 1997/12/17
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Dan Post wrote: > > Interesting- I had heard that the greater the number, the rounder the > aperture and hence somewhat better image formation ( diffraction?). I also > read that a moving aperture makes for a better picture- some early P&S > cameras , and one of Nikon's recent ones have no aperture per se. The > shutter acts as an aperture- opening partially in bright light, and all the > way in dim light. The Nikon, which I just checked, has a three > bladed/shutter/iris. > I am of the opinion that these 'all in one' shutter/apperture devices are inferior to a separate diaphram and shutter. I suspect that the shutter efficiency is lower than a separate shutter mechanism. I think the real reason they are used on so many P&S cameras is lower cost. Anyone know some facts on this topic? Dennis - -- Experience is a tough teacher. It gives the test before the lesson. - -unknown