Archived posting to the Leica Users Group, 1998/04/22
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Eric Welch wrote: > > At 11:45 PM 4/21/98 -0700, Patrick Sobalvarro wrote: > > > Jim Brick wrote: > >>> Jim - > >>> > >>> What would you say are the benefits of the R7 over the R6.2? > > > >> Very accurate meter. > > > >Uh, correction. The R6.2's meter is one stop more sensitive on the > >low-light side than the R7's. They have the same high end. > > Correction? You seem puzzled by my use of the word "correction." By "correction," I meant that Jim had made a statement that was in error, by saying that a very accurate meter was one of the benefits of the R7 over the R6.2, when this is in fact not the case, given that the R6.2's meter is one stop more sensitive than that of the R7. Because my statement was intended to rectify the error, it was what is often called a "correction," and I used the word to signal that to the reader. > What good is one stop more sensitive, when the shutter speeds > don't go down that long unless one is on B, and then what good is a meter? Your question would make sense if film were not available in any speeds above ISO 50. The bottom end of the R6.2's meter measures light for an exposure of 1 second at f/1.4 at ISO 100, where the R7's meter gives out at 1/2 second at f/1.4 at ISO 100. As film speed increases, the meters do not become any more sensitive, so the slowest speed for which the cameras will meter at ISO 3200 at f/1.4 are 1/30 for the R6.2 and 1/60 for the R7.