Tue, 03 Jan 2006 15:20:10 -0800 Rick Womer wrote: > I must not understand the arcane measurement of > sensors. If "1/1.8 inch" means 1 inch by 1.8 inches, > that's 24x45mm, which doesn't make much sense. If > 1/1.8 inch is a fraction, that would be 0.54 inches > which is 14 mm; but what dimension is that measuring? > And why does that qualify as "huge"? > > Rick >
Rick, It is rather confusing, and it's just history-based. I think this page shows it clearly: http://www.dpreview.com/learn/?/key=Sensor_Sizes Type Aspect Ratio Dia. (mm) Diagonal Width Heigh (tube size) (sensor, mm) 1/1.8" 4:3 14.111 8.933 7.176 5.319 HTH, Igor
