NiSi Ricoh GR3 Filter System: Master Kit FAQ
By NiSi Filters Australia | Published: 2026-11-03
Category: 商品レビュー
Answers to the most common questions about the NiSi Ricoh GR3 filter system, from what's in the Master Kit to whether the 49mm adapter fits your camera.
Quick answer
The NiSi Ricoh GR3 Filter System is a modular way to add square filters, a polariser, or a wide-angle conversion lens to your GR III. Most buyers start with the Master Kit for its full filter set, while the 49mm adapter is the key piece if you already own 49mm-thread filters.
Square filters vs. 49mm screw-in filters: which path fits your GR III?
The Master Kit uses a holder that accepts up to two square filters and rotates 360 degrees, which suits graduated ND work where you need to align the transition with the horizon. If your existing filter collection is 49mm screw-in, the NiSi 49mm Filter Adapter MKII is the simpler entry point—it replaces the Ricoh GN-1 ring and gives you a standard thread. The two approaches are not mutually exclusive, but they solve different problems: the holder system is better for stacking and adjusting graduated filters, while the 49mm adapter is lighter and faster for circular polarisers or fixed NDs.
When the wide conversion lens makes more sense than a filter
The NiSi Wide Conversion Lens Kit expands the GR III's 28mm equivalent lens to 21mm, which is a significant field-of-view change for interiors, architecture, and tight street scenes. It includes its own 49mm filter adapter, so you can still use filters with the wide lens attached. The trade-off is size and weight—the conversion lens adds bulk to a camera that is prized for being pocketable. If you rarely need wider than 28mm, put the money toward the Master Kit instead.
Frequently asked questions
- What's included in the GR3 Master Kit?
- The kit includes the NiSi Ricoh GR3 Filter Holder, adaptor, Medium GND8 (0.9) 3-stop graduated filter, Soft GND8 (0.9) 3-stop graduated filter, HD Polariser, ND8 (0.9) 3-stop, ND64 (1.8) 6-stop, and a carry pouch. It also includes a replacement lens ring.
- Will the 49mm adapter fit my Ricoh GR IIIx or GR IV?
- No. The NiSi 49mm Filter Adapter MKII is purpose-built for the Ricoh GR III and is not compatible with the GRIIIx or GRIV. Check your model before ordering. Confirm your camera model first—this adapter is GR III only.
- Can I use the wide conversion lens and filters at the same time?
- Yes. The Wide Conversion Lens Kit includes the dedicated 49mm filter adapter MKII, so you can attach 49mm filters to the wide lens. The Master Kit's square holder system is separate and not designed to mount on the wide lens.
- How many filters can the Master Kit holder take at once?
- The holder accepts up to two square filters and rotates 360 degrees, letting you stack filters and adjust a graduated filter's angle independently of the camera.
- Do I need the 49mm adapter if I buy the Master Kit?
- Not necessarily. The Master Kit comes with its own adaptor for the holder system. The 49mm adapter is for using standard 49mm screw-in filters directly on the lens, and it is a separate purchase.
Key products at a glance
- NiSi Filter System for Ricoh GR3 (Master Kit): Holds up to two square filters with 360-degree rotation and includes Medium GND8, Soft GND8, HD Polariser, ND8, and ND64 filters. You get a complete filtering setup in one kit, with the rotation needed to position graduated filters precisely.
NiSi Filter System for Ricoh GR3 (Master Kit) - NiSi 49mm Filter Adapter MKII for Ricoh GRIII: Precision-machined replacement for the Ricoh GN-1 ring, adding full 49mm filter thread compatibility; not compatible with GRIIIx or GRIV. If you already own 49mm filters, this adapter lets you use them on the GR III without buying a full holder system.
NiSi 49mm Filter Adapter MKII for Ricoh GRIII - NiSi Wide Conversion Lens Kit for Ricoh GR III: Includes the PR-10 0.78x wide conversion lens and a dedicated 49mm filter adapter MKII, expanding the GR III to a 21mm equivalent view. You can shoot wider and still mount 49mm filters, which is useful for landscape and architecture when you need both width and light control.
