1. Nubia
    April 25, 2014 @ 10:43 am

    Very good information to practice with the 9 stops NDF. Sometimes it is also necessary to pre-focus when using the more dense side of the filter, it can get too dark to see through it. Thanks, Ed


  2. patrick cosgrave
    April 25, 2014 @ 2:37 pm

    The best and most informative article that I have read on the subject of ND filters.Concise simple and direct no vagueness or confusion in the presentation.I would appreciate if you would apply the same method in explaining f-stops in relation to IMAGE STABILISATION


  3. Duane Dale
    May 8, 2019 @ 10:53 pm

    What do you think of a polarizing filter as a stand-in for an ND filter — for example, outdoors in full daylight, to get to a wide aperture for shallow depth of field (your daffodil example)? Or a combo of a polarizing filter in a single ND, in lieu of 2 NDs stacked?


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