Lee Filters SW150 3.0 ProGlass IRND 10 Stop Neutral Density Filter 150x150mm. Pro Glass IRND filters are available for the Seven5, 100mm and SW150 filter systems. Manufactured from 2mm-thick glass, the new Pro Glass filters are available in 0.6ND (two-stop), 0.9ND (three-stop), 1.2ND (four-stop), 1.8ND (six-stop), 3ND (10-stop) and 4.5ND (15-stop) versions, covering photographers’ every need, from subtle alterations, right up to ultra-long exposures.
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