Archived posting to the Leica Users Group, 2001/07/16
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Okay, so his photomath sucks - but in everything else he wrote in that post Kyle is right on the money..;-) Mxsmanic wrote: > > Kyle Cassidy writes: > > > fwiw, f 1.0 is NOT one stop faster than > > f 1.4, it's only a third of a stop faster. > > This is incorrect. 1.4/1.0 = 1.4, and squaring that gives 2.0, and log2 2.0 = > 1.0, therefore f/1.0 is fully one stop faster than f/1.4.