NiSi released a new JetMag Pro 49MAG magnetic filter system that locks (compatible with M, Q, and D-Lux lenses). The new system is a slim ring that lives on the camera; filters snap on magnetically, and a short twist locks them so they cannot be knocked off. Orders are now open at: B&H Photo NiSi … Continue reading New: NiSi JetMag Pro 49MAG magnetic filter system that locks (compatible with Leica M, Q, and D-Lux lenses)