Archived posting to the Leica Users Group, 1999/09/06
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Jim: What does one do with 1/8th of a stop? Would a lesser manufacture just called it an F4 lens? Does an eith of a stop show on chromes? In other words, should I just use the incident reading for F4 when shooting wide open? Regards, Robert At 12:26 PM 9/6/99 -0700, you wrote: >At 03:35 PM 9/6/99 -0300, Robert G. Stevens wrote: >>Speaking of half shutter speeds and the such, how do you use a manual meter >>when shooting the 105-280 wide open at F4.2? I have just been stopping it >>down the half stop between 4.2 and 5.6 ( 4.8?) and using that for the >>manual meter. >> >>How much slower in stops is 4.2 from 4? >> >>Regards, >> >>Robert > > >It goes, in 1/4 stops, f/4.0, f/4.4, f/4.7, f/5.2, f/5.6 > >and in 1/3 stops: f/4.0, f/4.5, f/5.0, f/5.6 > >so you can find f/4.2 as roughly 1/8th stop slower than f/4.0 > >Jim > >