




Urth 40.5mm Ethereal Black Mist 1/8 Filter 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 |
At a glance: The Urth 40.5mm Ethereal Black Mist 1/8 filter adds a light highlight glow and softens digital sharpness on lenses with a 40.5mm thread.
About this accessory
The Urth 40.5mm Ethereal Black Mist 1/8 Filter Plus+ is a diffusion filter that blooms highlights gently. It uses German SCHOTT B270 glass with a CoraNano 20-layer coating on both sides in an ultra-slim, warp-resistant aluminium frame for 40.5mm lens threads.
Pick 1/8 if you want a hint of softness that is easy to live with, such as on skin or bright windows. If you want a more obvious look, the Ethereal 1/4 is the next step up.
Build & handling
| Filter type | Black Mist diffusion, 1/8 strength |
|---|---|
| Range | Ethereal |
| Tier | Plus+ |
| Filter thread | 40.5mm |
| Glass | German SCHOTT B270 |
| Coating | CoraNano 20-layer dual-side nano-coating |
| Frame | Ultra-slim, warp-resistant aluminium |
| Warranty | Lifetime |
Works with
- Lenses with a 40.5mm filter thread
Best for
Best for portraits, street work, weddings and cinematic video where a soft glow is wanted around lights and highlights, using a 40.5mm lens. It adds a filmic touch without a heavy effect.
Frequently asked questions
How do I know if a 40.5mm filter fits my lens?
It fits lenses with a 40.5mm front filter thread. Check the ø figure marked on the front of your lens or on its cap. A lens marked ø40.5 takes this filter directly, and the lens manual lists the thread size too.
What does a Black Mist filter do?
A Black Mist filter is a diffusion filter that blooms highlights and lowers contrast slightly. Urth lists this one in its Ethereal range at 1/8, the lightest strength, for a subtle filmic look.
What is the difference between 1/8, 1/4 and 1/1 Black Mist?
The numbers show strength: 1/8 is light, 1/4 is medium with noticeable halation around highlights, and 1/1 is the strongest in Urth's Ethereal range. Stronger filters give more glow and lower contrast.
Does a 40.5mm filter work on a small or compact lens?
Yes, 40.5mm is a small thread of the kind found on compact lenses and small primes, and the slim frame adds very little length. Check the ø mark on your lens first.
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.

