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<blockquote data-quote="BackdoorArts" data-source="post: 206311" data-attributes="member: 9240">An ND400 is almost black, so even in bright sun the amount of light coming through is minimal.&nbsp; Metering may or may not be accurate, and chances are you're going to squeeze off several shots are mulitple seconds each before coming up with something that works.&nbsp; So it's not so much that you can't meter, but that the accuracy of it is going to depend on the camera and the type of metering used.&nbsp; If you know you have a good reading without the filter you can easily adjust it manually using the app, or simply by counting the clicks on your camera wheel provided you know whether your shutter speed settings are set at 1/2 or 1/3 stop intervals.Also, it becomes nearly impossible to frame with the ND on becuase it's so dark in the viewfinder, so if you're framing the shot before you put the filter on you might as well nail down the metering as well.And don't forget to cover the viewfinder on those long exposures to prevent light leak!!</blockquote>

[QUOTE="BackdoorArts, post: 206311, member: 9240"] An ND400 is almost black, so even in bright sun the amount of light coming through is minimal. Metering may or may not be accurate, and chances are you're going to squeeze off several shots are mulitple seconds each before coming up with something that works. So it's not so much that you can't meter, but that the accuracy of it is going to depend on the camera and the type of metering used. If you know you have a good reading without the filter you can easily adjust it manually using the app, or simply by counting the clicks on your camera wheel provided you know whether your shutter speed settings are set at 1/2 or 1/3 stop intervals. Also, it becomes nearly impossible to frame with the ND on becuase it's so dark in the viewfinder, so if you're framing the shot before you put the filter on you might as well nail down the metering as well. And don't forget to cover the viewfinder on those long exposures to prevent light leak!! [/QUOTE]

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