Swiftlock Lens Technology enables riders to change lenses instantly, providing a faster, easier, and more secure way to adapt to changing light conditions. The original Swiftlock consists of an easy on-and-off mechanism which utilises a pair of small, locking levers integrated into the frame. Simply flip the levers up to release the lens, pop in the new one, and with one quick motion, lock it down. Our new Swiftlock Magnetics, found on the NFX MAG OTG and the RVX MAG OTG, contains our most secure and quick lens changing system to date.