Archived posting to the Leica Users Group, 2002/05/17
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Thanks, Doug. I do indeed have that nul cam but completely overlooked it, until you told me where to find it. Best..........Julian - ----- Original Message ----- From: "Douglas Herr" <telyt@earthlink.net> To: <leica-users@mejac.palo-alto.ca.us> Sent: Friday, May 17, 2002 11:05 AM Subject: Re: [Leica] 400mm 6.8 question On Fri, 17 May 2002 10:44:22 -0400 Julian Koplen <jkoplen@mindspring.com> wrote: > I have a version of this lens with what appears > to me to be a plain vanilla lens mount. I > don't see any cams. I use it primarily with an > SL, but can I also use it on an R camera, with > TTL metering at the working aperture , and > get accurate aperture-priority exposures? Or > do I have to apply a compensating factor of > some sort? If the lens doesn't have the R nul cam, you can use it on an R body but whether you need to compensate depends on which body it is. With an R3- or R4-series body, yes you do need to compensate. With my R4s and R4sP bodies I had to adjust exposure by 1.5 stops (I forget which direction) but at least it's consistent through the metering range. The newer bodies don't need any compensation. The R nul cam on this lens is a little metal tab at about the 8 o'clock position looking at the rear of the lens. Doug Herr Birdman of Sacramento http://www.wildlightphoto.com - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html