New: NiSi JetMag Pro 49MAG magnetic filter system that locks (compatible with Leica M, Q, and D-Lux lenses)



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:


Additional information is available here:

Leica Q series compatibility

If you shoot with a Leica Q3, Q3 43, or Q3 Monochrom, this system is completely plug-and-play. Because the Summilux and APO-Summicron lenses on the Q series already feature a native E49 thread, you simply screw on the slim 49mm-to-49MAG adapter ring once, and your camera is immediately integrated into the magnetic ecosystem.

Leica M-mount compatibility

While the system is named 49MAG, it’s actually fed by a series of five adapter rings. In addition to the native 49mm ring, NiSi offers adapters for 39mm, 40.5mm, 43mm, and 46mm threads. This means a single set of 49MAG glass can seamlessly serve an entire shelf of classic M-mount lenses.



The Twist-Lock Mechanism

The most common complaint with magnetic filters is that they walk off the front of your lens the second they catch on a strap or brush against a bag. The JetMag Pro system solves this with a patented locking mechanism. The filter snaps on magnetically, but a short, deliberate twist locks the internal handle. Once locked, it cannot be knocked off. It takes about one second to swap a filter with one hand, without taking your eye off the EVF.

The NiSi JetMag Pro 49MAG magnetic filters also work with the Leica D-Lux 8 43mm thread via the 43mm-49 MAG ring.


The 49MAG range includes all of NiSi’s premium glass options:

  • True Color CPL – glare control on water, glass, wet roads, foliage; no yellow cast
  • FS ND8 / ND64 / ND1000 – 3, 6, and 10-stop Full Spectrum NDs
  • True Color Variable ND (1–5 Stops) – variable ND for video or changing light
  • Mist and Diffusion filters 1/8 and 1/4, Pure Mist 1/4, Film Glow 1/4, HDF – diffusion/glow (ideal for taking the clinical digital edge off high-resolution sensors)
  • Yellow / Orange / Red – classic contrast filters for the Q3 Monochrom
  • NC UV – clear protection filter
  • Cross Screen 4x – four-point star effect on point lights



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