NiSi JetMag Pro 40.5mm-49MAG Magnetic Adaptor Ring

The NiSi JetMag Pro 40.5mm-49MAG Magnetic Adaptor Ring is a precision-engineered accessory that allows photographers and filmmakers to mount NiSi JetMag Pro 49MAG magnetic filters onto lenses featuring a 40.5mm front filter thread. Designed for speed, convenience, and reliability, it serves as the essential connection between compact lenses and the JetMag Pro magnetic filter ecosystem.

Featuring a 40.5mm-to-49MAG conversion design, the adaptor ring enables the use of a complete range of JetMag Pro 49MAG filters—including ND, CPL, diffusion, UV, and creative effect filters—on compatible 40.5mm lenses. This provides greater flexibility while reducing the need to purchase multiple filter sizes.

The adaptor ring incorporates the JetMag Pro magnetic attachment system, allowing filters to be installed and removed in seconds without the repetitive threading required by traditional screw-in filters. This significantly improves workflow efficiency, particularly in fast-changing shooting environments.

Constructed from high-quality aluminum, the ring offers an ideal balance of strength and lightweight portability. Its durable construction is designed to withstand regular professional use while maintaining dependable performance.

The slim-profile design helps keep the overall setup compact and minimizes the risk of vignetting, making it suitable for use with a wide variety of lenses while preserving image quality.

Manufactured with precision engineering, the adaptor ring ensures an accurate and secure fit between the lens and JetMag Pro filters. This precision helps maintain proper alignment and stability during shooting.

For enhanced security, the system incorporates secure lock alignment, allowing users to rotate the attached filter until it aligns with the designated white lock indicator, ensuring the filter is firmly locked in place.

Designed to support a fast field workflow, the adaptor ring allows photographers and filmmakers to switch quickly between neutral density, polarizing, diffusion, and specialty filters without interrupting the creative process.

By enabling a single filter collection to work across multiple lenses, the adaptor ring helps expand filter versatility, reducing equipment duplication and simplifying gear management.

Designed specifically for the NiSi JetMag Pro 49MAG magnetic filter system, the adaptor ring integrates seamlessly with compatible JetMag Pro filters, magnetic caps, and accessories.

Combining precision construction, magnetic convenience, and broad system compatibility, the NiSi JetMag Pro 40.5mm–49MAG Magnetic Adaptor Ring is an essential accessory for creators seeking faster filter changes, expanded lens compatibility, streamlined workflow, and maximum value from their JetMag Pro filter investment.

gnetic Back Cap is an essential accessory for users seeking secure filter storage, efficient workflow, and dependable protection for their JetMag Pro filter system both in transit and in the field.

Product Features in Detail

Snap On in Seconds
The JetMag Pro 49MAG magnetic system is built for speed and reliability, using strong magnets to hold each filter securely in place. Filters snap on or off in seconds, so you can adapt to changing light without breaking your flow—and the stackable design lets you combine multiple filters effortlessly for maximum creative control on the go.

Locked On Tight
JetMag Pro 49MAG features a secure locking mechanism that keeps your filters firmly in place, even during fast movement or rough conditions. Simply twist the filter until it aligns with the white line on the adaptor to engage the lock—giving you complete confidence that your filters won't shift or detach while you shoot.

Color-Coded Control
Every 49MAG filter has its own color-coded handle, so you can identify the look you want at a glance and grab it fast. The tactile handles make it easy to attach, stack and remove filters by feel—even in low light—keeping you focused on the shot instead of your kit.

One Filter, Many Lenses
Fit a 49MAG adaptor ring to each of your lenses—available in 39mm, 40.5mm, 43mm, 46mm and 49mm—and a single filter works across them all. Move one filter from lens to lens in seconds, with no step-up rings or extra gear, saving time and space in your kit.

Every Creative Look
From True Color CPL and Full-Spectrum ND to Black Mist, Pure Mist, Film Glow, HDF, Cross Screen and the Yellow, Orange and Red monochrome filters, the 49MAG system covers every creative look on one magnetic platform—so you can build your kit and switch between effects in seconds.

Built for the Field
Premium optical glass and NiSi's low-reflective nano-coating cut glare while repelling water, oil, dust and fingerprints, so your filters stay clean and wipe down easily. Slim, aerospace-grade aluminium frames are built to handle real-world shooting, wherever the day takes you.

Fits in Your Pocket
The whole 49MAG system is made to travel light. Slim filters, magnetic caps and the compact Caddy Pouch keep everything protected and organised in a package small enough to slip into a pocket—so you can carry every look without the bulk of traditional filter cases.

NiSi JetMag Pro 40.5mm-49MAG Magnetic Adaptor Ring
The NiSi JetMag Pro 40.5mm-49MAG Magnetic Adaptor Ring allows NiSi JetMag Pro 49MAG magnetic filters to be used on lenses with a 40.5mm front thread. It creates a fast magnetic filter workflow while keeping the system compact and easy to use.

Adapt 49MAG Filters to Your Lens
The 40.5mm-49MAG adaptor ring lets lenses with a 40.5mm filter thread use NiSi JetMag Pro 49MAG magnetic filters.

Fast Magnetic Attachment
Once fitted to the lens, the ring allows compatible 49MAG filters to snap on quickly, saving time compared with traditional screw-in filters.

Secure Locking Workflow
For secure use, rotate the filter until it aligns with the white lock line on the adaptor ring.

Durable and Lightweight
The aluminum construction keeps the ring strong, slim, and easy to leave on the lens between shoots.

Compact 49MAG System
The ring helps build a compact magnetic filter setup suited to smaller lenses and lightweight camera kits.

Broad Creative Compatibility
Use the same 49MAG filters across ND, CPL, diffusion, monochrome, and creative effects by changing only the adaptor ring.