LEE Filters 100x100mm Proglass IRND

£185/$237 www.leefilters.com

LEE Filters has long been the go-to brand for uncompromising filter quality, and its latest Proglass IRND range is said to be the new benchmark in ND performance. Six density options are available, with a typical 2-stop to 10-stop range, but there’s also a super-dark 15-stop variant for extremely long exposures. The IRND name signifies that the filter coating blocks infrared and ultraviolet light for better image contrast, and LEE is claiming top-notch exposure consistency and colour accuracy. We tested the 6-stop and 15-stop filters in the IRND line-up and both did have absolutely no impact on colour accuracy in our testing. Image sharpness was also flawless, with both filters maintaining perfect centre, mid and corner-frame crispness. With such long exposures possible, LEE has come up with a companion app to help you calculate optimal exposure times. You’ll also need a suitable 100mm filter holder to use IRND filters, with the obvious choice being the latest LEE100 holder. Finally, a lens adaptor ring is required to attach the holder to your lens.

PROS

Sublime image quality; wide range of density options; versatile filter sizes

CONS

You’re getting a top-spec ND filter here, but that quality does not come cheap