Archived posting to the Leica Users Group, 2001/07/16
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]- --- Ethel Red <ethel_red@hotmail.com> wrote: > If you have to take the time to position an auto-focus sensor on the point > you want in focus, and then push a button, then frame the image and push a > different button to fire this technological Rube Goldberg contraption, you > might just as well use a manual focus camera. The difference is that the AF mechanism, in many cases, can hit focus on a spot faster than you can manually. There are other cases when the AF sensor won't work so well. But, when things do line up right, a modern AF camera can focus in a half a second or less just by hitting one button. In contrast, it always takes me several seconds to focus by hand. I'm just not that good at it. I'll probably get better, but it's not all that interesting to me to practice just for the hell of it. Like most automatic mechanisms, AF works best when you tell it exactly what you want it to do (focus on THIS spot please) and you use it when you know it will work well (relatively well defined details with enough contrast). The same principle applies for automatic exposure. Pete __________________________________________________ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail http://personal.mail.yahoo.com/