Martin VDO Sceptron Asymmetric Wall-Washing Lens, 320 mm

Wall washing from close range is an asymmetry problem: a symmetrical fixture sitting at the foot of a wall lights the bottom hard and the top barely at all. This lens front biases the VDO Sceptron's output away from the fixture so the far end of the surface gets its share, which is what makes an even gradient possible from a batten tucked into a skirting detail or a ceiling slot.

Martin lists it as the Asymmetric (Wall-Washing) Lens. This listing is the 320 mm length; the 1000 mm version is P/N 91611680. It uses the same clip as every other VDO Sceptron optical accessory, so the same bar can carry a diffuser one week and this lens the next, and the Diffuser/Lens Removal Jaws, P/N 91611836, take it off without marking the extrusion.