I agree 100% re. digital cameras. I just don't want to experiment with actual film.
I am using a dedicated light meter. Always. Just taking the reading off of that and adjusting the settings on my camera.
I'll definitely try the method you described.
Thanks for your help and input!
Last edited by Leigh; 22-Jun-2017 at 09:52.
If you believe you can, or you believe you can't... you're right.
If you are using a hand-held, reflectance meter, a little caution is in order. Since it is an ND filter, if you simply hold the filter in front of the meter, some extraneous light might hit the meter's sensor -- stray light from the side or reflecting back off of the filter. So get the filter as close as you can to the meter's sensor. Sometimes having four hands helps.
Exactly. When I tested my ND gels I used my Sinar (monorail) camera with a bellows hood in front of the camera and a filter holder located between the hood and the camera; the hood kept all stray light off the front surface of the filter, then I removed the camera back so I could use a spot meter through the camera bellows and put a darkcloth over the camera and hood to keep stray light off the rear surface of the filter. Used blue floods (to simulate outdoor lighting) evenly illuminating a white mount board. All this setup was possibly overkill, but the filter factors were all exactly what the manufacturer said they were.
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