Archived posting to the Leica Users Group, 2001/11/02
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]on 1/11/2001 9:21 pm, Leica Users digest at owner-leica-users@mejac.palo-alto.ca.us wrote: > What I've run into is that the lens is calibrated in the old "international" > stops - 2, 2.2, 3.2, 4.5, 6.3, 9, 12.5 - what does this translate to in the > current system? I haven't been able to find a table of equivalencies. They are still all a stop apart from 2.2 to 12.5. The sequence goes f2 plus 1/3 stop for f2.2 plus one whole stop to f3.2 plus one whole stop to 4.5 etc. The f2.2, 3.2, 4.5 ,6.3, 9, 12.5 settings are simply 1/3rd stop dimmer than f2, f2.8, f4, f5.6, f8 and f11. If you are using a good old fashioned hand-held meter with the camera you'll probably find it marked in third stops anyway. I'm surprised that my modern Sekonic works in half stops whereas my old Gossen has third stops. - -- David G Prakel (back on the LUG after 10 months away!) - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html