During an entirely sleepless night last night, I came up with the idea of compiling a cheat sheet for determining the correctto use after applying ND filters of varying strengths.
Quite simply, it is a table which lists, in third- intervals, every unfiltered from 1/8000th to 30 seconds, and the corresponding speeds to use after reducing intake from a range of one to six via the use of one or more ND filters.
This may come in handy for landscape photographers, and will save a bit of mental arithmetic when chasing the in the pursuit of images.
My ND Filter Cheat Sheet can be downloaded from the following URL:
I recommend that photographers print the cheat sheet and carry it in their camera bags to serve as a quick reference whenever it's necessary to determine the correct to use after, say, stacking two ND8 filters in front of the .
If I've made any glaring mathematical errors, please let me know so I can update the document.
I hope you find it useful.