How to Use the NiSi JetMag Pro Lens Hood on Ricoh GR IV

Quick answer

Attach the dedicated 49mm filter adaptor to your Ricoh GR IV, then snap on the magnetic square lens hood and lens cap. No tools required.

Step-by-step installation and use

1. Remove the standard ring: Unscrew the Ricoh GR IV’s standard GN-3 ring from the lens barrel. Keep it in a safe place in case you want to revert to the original setup. Common mistake: forcing the ring off. Turn gently counterclockwise.
2. Attach the 49mm filter adaptor: Screw the included 49mm filter adaptor onto the lens threads where the GN-3 ring was. Hand-tighten until snug—do not overtighten. Check that the adaptor sits flush and does not cross-thread.
3. Snap on the magnetic square hood: Hold the square lens hood near the adaptor. It will click into place magnetically. Ensure it is fully seated before use. Common mistake: not aligning the hood correctly. It should sit evenly around the lens.
4. Attach the magnetic lens cap: Place the magnetic lens cap over the front of the hood. It will snap on securely. To remove, simply pull it off. The cap can be stored on the back of the hood when shooting.
5. Use with filters (optional): The adaptor accepts standard 49mm screw-on filters. Attach them before snapping on the hood for a complete magnetic filter system. Ensure filters are clean and dry before mounting to avoid dust between elements.

Product facts

• NISI JetMag Pro Lens Hood Kit for Ricoh GR IV: Dedicated design for Ricoh GR IV – replaces the standard GN-3 ring with a 49mm filter adaptor, magnetic square lens hood, and magnetic lens cap. You get a precise, integrated fit that stays secure during use, and you can swap filters or the cap in seconds without threading.