Archived posting to the Leica Users Group, 2012/07/12
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Richard, the link says the sensor size (diag.) is 1 inch (24.5mm). How is that possible when the M4/3 diagonal is only 22.5mm? They must be using the old terminology, so it could also be called a 3/3 sensor, as compared to 4/3. Confusing. >From wikipedia on MFT: "The image sensor of Four Thirds and MFT is commonly referred to as a *4/3" type* or *4/3 type* sensor (inch-based sizing system is derived from now obsolete video camera tubes <http://en.wikipedia.org/wiki/Video_camera_tube>). The sensor measures 18 mm ? 13.5 mm (22.5 mm diagonal), with an imaging area of 17.3 mm ? 13.0 mm (21.6 mm diagonal), comparable to the frame size of 110 film <http://en.wikipedia.org/wiki/110_film>.[3]<http://en.wikipedia.org/wiki/Micro_Four_Thirds_system#cite_note-Olympus-Europe_4.2F3-2> Its area, ca. 220 mm?, is approximately 40% less than the APS-C<http://en.wikipedia.org/wiki/APS-C> sensors used in other manufacturers' DSLRs <http://en.wikipedia.org/wiki/DSLR>, yet is around 9 times larger than the 1/2.5" sensors typically used in compact digital cameras <http://en.wikipedia.org/wiki/Compact_digital_camera>. " -- Phil Swango 307 Aliso Dr SE Albuquerque, NM 87108 505-262-4085