swamiji Posted September 29, 2012 Share #41 Posted September 29, 2012 Advertisement (gone after registration) Just for fun, I repeated the test with my second M9 and my M7. Identical results. Link to post Share on other sites More sharing options...
Advertisement Posted September 29, 2012 Posted September 29, 2012 Hi swamiji, Take a look here Which meter reading seems correct?. I'm sure you'll find what you were looking for!
Michael Geschlecht Posted September 29, 2012 Share #42 Posted September 29, 2012 Hello swamiji, 2 separate items: When measuring w/ any range/viewfinder or bellow-M lens & an internal meter & comparing that reading to a hand held meter it is necessary to stop the lens down to a point where vignetting is no longer an issue (F5.6 or F8 w/ your Summilux) so there is a COMPARABLE situation when metering. A built in meter on a RFDR does not compensate for vignetting the way cams do on an SLR w/ open aperture metering. You need a level playing field or else the meter will correctly say you need additional exposure w/ the lens fully open in order to compensate for vignetting. 2d item: If you have a number of meters or only 1 meter the only way to determine which is correct is to measure against a standard light source. If you do not have access to a standard light source & you live where the air is reasdonably clear, the altitude is not that high, there is not a lot of snow on the ground & you are not near a large body of water w/ a large light colored open ground near the water then: The correct reading between 10;00 & 14:00 on a nice day is more or less F16 @ 1/ISO. Your Master V has a little adjustment screw in the back for regulating this. You can also use this screw to "0" the meter. Best Regards, Michael Link to post Share on other sites More sharing options...
swamiji Posted September 30, 2012 Share #43 Posted September 30, 2012 Michael Your first point is very valid, and I think it's where I may find the answer. I tried both the Summilux-M asph 50 and the APO-Summicron 90 and found them similar. In regards to your second point. The sunny 16 rule does not apply here as its overcast 360 days a year, and you can have a 5 f-stop difference with no change in shadow. That is why I use a second light meter to compare. Yes the needle is nicely at zero. Link to post Share on other sites More sharing options...
sblitz Posted October 4, 2012 Share #44 Posted October 4, 2012 I have a small sekonic and m9 and a few iPhone meters. I usually carry my m9 with my m4. Think of the m4 as my mm. Anyway when I get a bit confused on lighting I pull out the m9 to meter and find it matches up with the sekonic. Sometimes I prefer shooting the m9 like the m4 and don't worry about m9 meter and the shots I believe are better Link to post Share on other sites More sharing options...
swamiji Posted October 6, 2012 Share #45 Posted October 6, 2012 I am starting to wish there was a way to turn off the meter of the M9, like the MP. I like my hand held better, it's slightly less exposed, and the colors turn out better. I have a Sekonic, and it's too big to fit in my pocket. It's great for manual flash, as I have the PocketWizard interface. Works great for studio. Link to post Share on other sites More sharing options...
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