Archived posting to the Leica Users Group, 2005/02/12
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]What no-one has ever been able to explain to me is how to determine how big a change on an MTF chart is required before a visible change becomes apparent in a photograph. -dan c. At 04:50 PM 12-02-05 -0500, Benjamin Marks wrote: >Anyone know of a good primmer on-line (or care to explain) how to read an >MTF graph? This was spurred by looking at the MTF graphs on Leica's >web-site for the 2/35 and 1.4/35 lenses and going "hunh" . . . Not that MTF >graphs are the be-all and end-all, but I've been sauntering through my >photographic life for the last 20 years without knowing what they mean. >(not >much of a theory-head when it comes to optics). So, here's the softball >question: what kind of numbers (or what kind of curves) make a lens >"better" in MTF land? What about the 1.4/35's graph indicates that it is >such a winner? > >bemusedly, > >Ben Marks >benjamin marks at verizon dot net > > >_______________________________________________ >Leica Users Group. >See http://leica-users.org/mailman/listinfo/lug for more information >