Archived posting to the Leica Users Group, 2003/07/21
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Henning wrote: > I have heard a number of explanations of this '4/3' thing, such as it > being the size of the sensor via some calculations, but it appears to > me to only apply to the ratio of the format. Does anyone know > definitively? Henning, Have you checked these sites ? http://www.kodak.com/global/plugins/acrobat/en/digital/ccd/papersArticles/3- 4TypeImageSensors.pdf specifies the size of the 4/3 sensor (17.8mm x 13.4mm). http://www.four-thirds.com/pdf/FourThirdsSystem.pdf: the 4/3 standard specifies the size of the image circle, as well as the diameter of lens mount, length of among other things. For more on the Olympus E1 implementation, check out http://www.dpreview.com/articles/olympuse1/, where thre's also a blurb on a potential Kodak 4/3 sensor of 31 Megapixels. - - Phong - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html