 Karen Lewis-Gunn |
red filter / metering? Can anyone tell me when using a red filter for use when doing b/w...do you take the meter reading while the filter is on or before you put it on?
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Jon Close |
Put the filter on the lens. If you are using your in-camera meter it reads the light reduced by the filter and will give you the correct exposure without compensation. If you are using a separate light meter, it doesn't know that your are using the filter so open up 2 stops (or what ever the filter factor is) from the meter reading.
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Karen Lewis-Gunn |
Thank you John! That makes perfect sense! I apprecicate your help! :-)
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John A. Lind |
In addition to what Jon mentions . . . If you're using a hand-held light meter and don't know what the filter factor is (usually marked on the ring), or have any doubts about what it is, you can also put the filter over the front of the meter sensor and meter through it before puting it on the camera lens. Set the light meter up with film speed without any filter correction if you do this. This works with metering reflected light (what your camera does through the lens). If you need to use incident light measurements using the white dome over the meter sensor, it won't work due to the incident dome (kinda obvious, but decided to say it anyway). -- John Lind
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Karen Lewis-Gunn |
Thanks John for that info! I bought my red filter off ebay. It is a cokin red/P003 and did not come with a filter factor. So your advice will come in very handy if I need top find its factor! Thanks again. :-)
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