There are often new people reading planet5D and I find that they don't always know all the terms we use as filmmakers so I thought I'd cover some basics every now and then.
I've recently been sent two different Neutral Density (ND) filters and so what better time to introduce you to the Eclipse ND from Genus and the ND Fader II from LightCraftWorkshop and to show you how they compare to a polarizing filter you might be used to using on your stills camera (hey, that's really an HDSLR right?).
In photography and optics, a neutral density filter or ND filter is a filter that reduces or modifies intensity of all wavelengths or colors of light equally, giving no changes in hue of color rendition. It can be a colorless (clear) or grey filter. The purpose of a standard photographic neutral density filter is to allow the photographer greater flexibility to change the aperture, exposure time and/or motion blur of subject in different situations and atmospheric conditions.[/box]
Note: I'll never use the ‘autofocus' on the Canon Rebel T4i while recording – I promise! It was a failed experiment.
daily planet5D #52 – ND Filters[tentblogger-youtube omiPPs57U54]
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(cover photo credit: snap from the podcast)