Archived posting to the Leica Users Group, 2012/11/21
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]And right he is! Nathan Wajsman Alicante, Spain http://www.frozenlight.eu http://www.greatpix.eu PICTURE OF THE WEEK: http://www.fotocycle.dk/paws Blog: http://nathansmusings.wordpress.com/ YNWA On Nov 22, 2012, at 1:06 AM, Geoff Hopkinson wrote: > Each morning I drive my son Sam to school. That means 30 or 40 minutes in > stop start traffic but we get to chat uninterrupted. Sam was with us in > Barcelona and got to meet Ted for the second time. This time walking around > with us once or twice when we were all shooting. > > Today I was telling him about the amazing technology in the newest > Hasselblad cameras that I saw last night. I had explained some basic sensor > theory and was then talking about the auto-focus systems. You point the one > centre AF spot at the eye you want sharp, lock the AF and then recompose. > The camera uses accelerometers to measure how much the camera angle changes > and adjusts for the difference in the arc where the sharpest plane is. Then > it compensates for errors in the field flatness of the individual lens and > some systems can predict if the subject is moving too. Then the camera > corrects out other optical errors. I explained that Leica M's have no auto > focus systems or accelerometers or predictive systems at all > > Sam listened with interest since he enjoys technology and science. After > all of that Sam said, "how come Ted can just point his camera, without even > looking sometimes and get great shots?" > > Jeesh!. > > Cheers, > Geoff > http://www.pbase.com/hoppyman > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information >