




Urth 46mm Magnetic Circular Polariser Plus+
Order by 2pm for same-day dispatch
Insured UK delivery £5.99, or collect free from our Harrogate shop
Hassle-free returns
Not sure it’s the right one?
Talk it through with people who use this kit every day, or come in and try it in your hands.
- 4.9 on GoogleFrom 137 reviews
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60+ yearsIndependent, in Harrogate
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Manufacturer warranty12 months or more
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Secure checkoutPayments by Shopify

The details
Buy with confidence
| Stock | In stock at Bass & Bligh |
|---|---|
| Dealer | Bass & Bligh is an authorised UK Urth dealer |
| In the box | Magnetic CPL filter, Magnetic adapter ring |
At a glance: The Urth 46mm Magnetic Circular Polariser Plus+ clicks onto a supplied adapter ring to cut glare and reflections on lenses with a 46mm thread.
About this accessory
The Urth 46mm Magnetic Circular Polariser Plus+ is a CPL that attaches magnetically. It comes with a magnetic adapter ring for the lens thread, and uses German SCHOTT B270 glass with a CoraNano 20-layer coating on both sides. Urth states light transmission of 44.91% and reflectance of 0.56%.
Because the filter clicks on and off, you can fit it for a glare-heavy scene and take it off without unscrewing anything. The ring stays on the lens. Against a threaded polariser it is faster to swap, though it needs the adapter ring.
Build & handling
| Filter type | Circular polariser (CPL), magnetic |
|---|---|
| Tier | Plus+ |
| Filter thread (adapter ring) | 46mm |
| Glass | German SCHOTT B270 |
| Coating | CoraNano 20-layer dual-side nano-coating |
| Light transmission | 44.91% |
| Reflectance | 0.56% |
| Warranty | Lifetime |
Works with
- Lenses with a 46mm filter thread (via the supplied adapter ring)
Best for
Best for travel, street and landscape photographers using a lens with a 46mm thread who like to swap filters quickly, and for video shooters who need to cut reflections on water, glass or windscreens at short notice.
Frequently asked questions
Is this the right filter for a 46mm lens thread?
It suits lenses with a 46mm filter thread, regardless of brand. Check the ø figure marked on the front of your lens or on its cap. A lens marked ø46 takes this filter directly, and the lens manual lists the thread size too.
Does the magnetic polariser include an adapter ring?
Yes. A magnetic adapter ring is included in the box. It screws onto your lens thread, and the polariser then attaches magnetically.
How much light does it block?
Urth states light transmission of 44.91%, so the filter absorbs a little over half the light. Expect to compensate with shutter speed, aperture or ISO.
Can I use it with a magnetic UV filter?
Not with the adapter ring on top of Urth's threaded Magnetic UV filter, as the magnets will repel. Use the ring directly on the lens thread.
Why buy from Bass & Bligh
Bought from a real shop, not a warehouse.
Dispatched on the Monday… great service
Ordered a Panasonic four thirds lens dispatched on the Monday after purchase and delivered on the following Tuesday great service. Tried on the camera and initial thoughts are wow pin sharp and clear photos. Thank you
George P.Ordered a lens onlineA proper little treasure trove
3rd time I've been to this shop to treat myself to some new kit. Always very friendly and knowledgeable. Fairly priced too. I would highly recommend a visit if your nearby and looking for camera gear. I'd say if they don't have what your looking for, it's probably not possible to find anywhere. It's a proper little treasure trove.
Philip B.Third visit to the shopBrilliant advice with awesome customer service
Sure you can buy online and possibly save a few pounds.. but if you require and appreciate knowledge and brilliant advice with awesome customer service then it's a no brainer...This is a real camera shop like it used to be back int day..
Malcolm S.

