Archived posting to the Leica Users Group, 2005/10/31
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]My perception is Aperture priority is that assuming no aperture information is fed into the camera's software, the camera will revert to seeing "light" as it comes into the metering sensors. Depending on the different metering mode used, the "best" shuttle speed will be calculated accordingly. I did some test today and found that Evaluative and Centerweighted Averaging always have same reading. Partial is one stop bigger. Will try some more test tomorrow. Pls let me rephrase my question. When you shoot with Leica lens, which metering mode do you used most and why? Cheers Nathan Wajsman wrote: > I just looked at the EXIF data for two of my recent images, one shot > with a Leica lens and one with a Canon lens. Both show that "pattern" > (i.e. matrix) metering was used. Both show aperture priority. > Obviously, the Leica image has no aperture of focal length information. > > In summary, my experience is that there is no change in the way the > camera meters when I put a Leica lens on it. > > Nathan > > Joseph Yao wrote: > >> Hi Lee, >> >> In addition, with a non-Canon EF lens mounted, there is no lens as >> far as >> the camera is concerned and the only metering mode available is >> centre-weighted. I do not think you can access matrix or spot or >> partial >> modes. >> >> What research did you do on this? >> >> Bests, >> >> Joseph >> >> >> On 31/10/05 8:46 am, "Robert Stevens" <leica@robsteve.com> wrote: >> >> >>> Lee: >>> >>> I have not used the 20D, but on my last three Canon digitals, D2000, >>> 1D, 1D MkII, you have to make sure you set the aperture to f1 on the >>> camera. On the 1D series, you set custom function 5 to 2 (cf5-2) and >>> it allows the aperture to be selected even without a lens (or canon >>> lens) mounted. With this CF set, you can spin the aperture dial to >>> f1 with a leica lens mounted and the metering will be proper in AV >>> and M. >>> >>> Regards, >>> >>> Robert >>> >>> >>> >>> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ >>> >>> >>> +++ >>> >>> Dear Luggers, >>> >>> I've been metering on my 20D and Leica R lens(using Aperture Priority) >>> on all modes: Evaluative, Partial, Centerweighted Averaging with mix >>> results. Most of the time, regardless of mode, I have to do some >>> manual >>> adjustments, otherwise, the pictures appear dark. Is it possible that >>> with Leica lens, since the AF points are not active, the metering mode >>> is not working optimally. My research suggest I use Partial which is >>> like semi-spot with center 9% being metered. But sometime it doesn't >>> really read the light correctly. Whats the "best" mode to use? >>> >>> Pls share your experience here. >>> >>> Many Thanks >>> Lee >>> >>> >>> >> >> >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information >> >> >