First, I have searched the Forum as best as I know how, and I cannot find/extract information to help me with this problem.
I propose to test my exposure meters using ND filters--not variable or grad--just uniform ND2, ND4, and ND8. The plan is to meter a bright, uniformly-lit surface, note the reading, then successively apply the filters by placing them in front of the meter. (I recognize that there may be some reflected light off the meter 'window' and the filters.) Three questions:
1. Can this plan be improved?
2. Can ND filters be combined/superimposed, e.g., placing an ND4 in front of an ND2?
3. If an ND4 (1/4 of the reflected light is passed) is placed in front of an ND2 (1/2 the reflected light is passed), is the result that 1/8 of the amount of reflected light is passed?
Thanks for helping me out!
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