Archived posting to the Leica Users Group, 2004/10/15
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]. >> > > The only reason that 'crop factor' is meaningful, really, is because it > is in general easier to design a particular lens having a particular > resolution, etc. when the coverage is less. For example the Schneider > Super Symmar XL 150/5.6 -- considered an *exceptional* super wide angle > for the 8x10 format ... aspheric yada yada yada, with lots and lots of > lpmm **for 8x10** but if you were to slap this on a 35mm it would be a > downright dud ... super expensive, slow, low resolution etc. > > So basically for the APS-c factor you are 'paying for' a 35mm format > lens but only the APS-c lpmm. > > Jonathan > Yes but you don't say a 35mm format lens is sharper than a medium format lens because of the "crop factor". You say it's sharper because inherently in a smaller image circle a lens is going to be sharper - by it's very nature. I guess we could drive each other crazy with semantics here. But nothing is being cropped. It's an orange instead of an apple. I don't want to be accused of being anti semantic!!! Mark Rabiner Photography Portland Oregon http://rabinergroup.com/