At the core of the LEE Filters system is the holder, which comes assembled with two filter slots but can easily be adapted to take up to four filters.
The holder is designed to be compatible with 100mm filters – the standard width. To fit the holder to the lens, an adaptor ring is required.
There are two types of LEE Filter adaptor ring - one for general use, and one for wide-angle lenses.
The Foundation Kit takes standard 100mm filters, and can be constructed to take up to three filters at any one time. The Foundation Kit, like all others, clips onto the adaptor ring which, in turn, screws onto your camera's lens.
(adaptor rings sold separately)
The LEE Filters holder has been designed with almost every photographic eventuality and combination in mind.
Up to four filters of different types can be used in one holder. For instance you could combine Neutral Density and Warm-up Filters to respond to a specific lighting situation. Or if you shoot black and white you might select a red filter plus a Neutral Density Standard to darken blue skies and slow down the exposure.Crucially, once fitted to the adaptor ring, the holder can be rotated to any angle. This permits the photographer to balance the exposure even when the brightest areas fall, say, within the top left hand 'triangle' of the scene.
How the holder is constructed?
1. Fit the back cover plates to the back plate
2. Fit the filter holder guides to the back cover plates.
Up to four guides, or slots, can be used with one holder. (remember, though, the more filter guides added, the higher the likelihood of vignetting with wideangle lenses).
3. Fit the front cover plates to the filter holder guides.