Archived posting to the Leica Users Group, 2012/07/12
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I like the look of that camera!!! - - from my iRabs. Mark Rabiner http://gallery.leica-users.org/v/lugalrabs/ > From: John McMaster <john at mcmaster.co.nz> > Reply-To: Leica Users Group <lug at leica-users.org> > Date: Fri, 13 Jul 2012 03:58:30 +0000 > To: Leica Users Group <lug at leica-users.org> > Subject: Re: [Leica] Companion to the M9? > > http://www.dpreview.com/previews/sony-dsc-rx100/ shows size in relation to > other crop-circle sensors > > john > ________________________________________ > > > When they say inch with sensors they are talking about a tube which used to > surround it from the old black and white video in the TV station days. The > sensor is much smaller and needs to be looked up to find out how small. > > - - from my iRabs. > Mark Rabiner > http://gallery.leica-users.org/v/lugalrabs/ > > >> >> 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/Micr>> o >> _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 > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information