Haida NanoPro Magnetic GND 0.9 Evaluation


Welcome to my test review- Haida NanoPro Magnetic GND 0.9. Testing for sharpness, magnetic attraction strength, ergonomics, vignette, colour cast and practicalities. Ideal for photography & videography.


Various regions of the Northern Highlands, Scotland. Where Eagles soar over magnificent coastlines, lochs and mountains.

Equipment used for testing

Canon 5d mark (iv), Canon 16-35mm F2.8 (iii) lens, Canon 70-200mm F2.8 (ii) lens, Gitzo tripod and ball head and Adobe Creative Cloud software.

Haida Magnetic Adapter ring


The magnetic adapter ring is made exclusively from aluminium for strength & light-weight.

Design & practicalities

Firstly, screw on the correct sized magnetic adapter ring. It screws onto the lens very easy & smoothly. This super slim adapter ring is made entirely from aluminium for strength and lightweight. From my experience, this helps with any unnecessary vignettes when shooting at wide angles. Once this is in place you’re ready to start adding filters. This can be conveniently left on permanently if you have the Magnetic lens cap which I discuss further on.

Sizes available

52, 55, 58, 62, 67, 72, 77 & 82mm. Step-up rings are also available in sizes 67-77mm and 77-82mm.

I’m using an 82mm on my Canon 16-35mm F2.8 (iii) lens and a 77-82mm Step-up ring for my Canon 70-200mm F2.8 lens.

What is a Graduated neutral density filter (GND)?

I’m sure every landscape photographer can relate to the failings of photographing a sunset/sunrise. You expose for the sky & the foreground is too dark- Expose for the foreground & the sky is too bright, we’ve all been there. This is due to our eyes having a much wider spectrum than a digital camera sensor. However, do not worry, there is an easy fix by using a Graduated Neutral Density filter such as this one. Start by placing the darkest part of the filter over the brightest area in the scene (usually the sky) you can reduce the difference between the two different exposures and balance the entire scene resulting in a very pleasing final image.

How to attach the GND filter onto your lens?

Couldn’t be easier. Simply, offer the filter up to the magnetic adapter ring on your lens & you’ll instantly feel the magnetic pull which is very strong.

Will it blow off in a strong wind?

I’ve been using Haida magnetic NDs for over a year now & never had one drop off even on the wild west coast of the Outer Hebrides’, Atlantic Ocean.


The frame part is constructed from Industrial Aluminium making it super strong and extremely lightweight. The glass is made from high-quality K9 optical glass for clarity and colour fidelity with a double-sided NanoPro coating.


Two words spring to mind- “speed and convenience“. The ability to add/swap filters fast can make or break a potentially great image as you’re not wasting time screwing on the adapter ring then filter holder, followed by filters, it really is time-consuming. With magnetic filters, you can literally add in one second then if you change your mind & want to try a different one it’s extremely fast & easy, with no stress at all.


This is ideal & something I find myself doing often. I like to pair any of the magnetic ND’s/GND with a Polariser. It’s possible to stack up to four filters with this system including other brand magnetic filters. So far, I haven’t felt the need to stack more than three but that’s purely personal taste. I’ve been enjoying the Haida NanoPro Magnetic ND3 (10 stop) and stacking this GND (3 stop) on top of it which gives me a total of 13 stops that graduate softly downwards from the sky which produces a very nice effect.

What is NanoPro?

NanoPro is a waterproof multi-coating on the filter glass, which helps prevent dirt and smudges from adhering to the glass & reduces reflection. Applied to both sides of the filter and helps prevent colour cast while maintaining excellent image sharpness. Highly scratch-resistant, durable, can be used underwater and super easy cleaning.


Based on 82mm filter = 18g.

Whats in the box?

A see-through plastic case with an internal shaped foam insert to keep your filter protected. One Haida NanoPro Magnetic Graduated ND0.9 & one Haida Magnetic Adapter ring.

Thoughts on image quality

Absolutely no vignetting. Zero colour cast & most importantly to me ultimate sharpness corner to corner.

Personal Likes

  • A nice soft transition from dark to light creating natural looking blending of light.
  • Clear to read text on the outside edge making it easy to select in the filter case.
  • Incredible tonality, contrast & sharpness.
  • Ultra-easy to attach and remove without any disturbance to the composition.
  • Increased dynamic range.
  • Well built, feels sturdy & the glass part doesnt rattle.
  • Conviently placed grips on the outer circumference making it easy to swap/remove.
  • No evidence at all of vignetting or colour cast.

Personal Dislikes

  • I’m really nit-picking, as there aren’t any real dislikes & I’m struggling to think of any. However, there is one small issue when I first started using the magnetic filters especially with the GND & Polariser when you have to turn them whilst attached to the lens to achieve the best exposure is touching the glass with my greasy fingertips. It’s quite difficult when your hands are shaking in the cold winds, although it’s easily rectified thanks to the NanoPro coating with a quick wipe with a soft microfibre cloth.
  • The magnetic family is limited, Id like to see some higher density NDs in the near future.

Comparative images below-showing straight-out-of-camera- (Canon 5d mark iv and Canon 16-35mm (iii) lens). Without/with Haida NanoPro Magnetic GND 0.9 (3 stop).

Without filter- ISO 100, F8, 1 second @35mm- With filter- ISO 100, F8, 7 seconds @35mm.

Without/ with filter

Finally post-processed in Adobe Creative Cloud.

Behind the scenes

Showing- Haida NanoPro Magnetic GND 0.9 on the front with Haida NanoPro Magnetic CPL stacked behind.

Comparative images below-showing straight-out-of-camera- (Canon 5d mark iv and Canon 70-200mm (ii) lens). Without/with Haida NanoPro Magnetic GND 0.9 (3 stop).

Without filter- ISO 100, F16, 1/250 @168mm- With filter- ISO 100, F16, 1/30 @168mm.

Without/with filter

Finally post-processed in Adobe Creative Cloud.

Behind the scenes

Magnetic lens cap

What I particularly love about this is- If you leave the Magnetic Adapter ring on your lens you can simply pop on the Magnetic Lens cap and pack it away conveniently in your bag- knowing it won’t get misplaced, lost, everything is secured and less time-consuming for your next shoot. Please note these are sold separately and not included with a single filter purchase but I really do recommend having for each of your lenses.

Images taken with Haida NanoPro Magnetic GND 0.9 (3 stop)

The image above Exif- ISO 200, F7, 1/2 @35mm. Post-processed in Adobe Photoshop.
The image above Exif- ISO 100, F8, 1/60 @70mm. Post-processed in Adobe Photoshop.

Haida magnetic zipped filter case

  • Holds up to 5 filters.
  • External dimensions- 121x121x47mm (LxWxH).
  • Filter size- 82mm.
  • Materials- PU Leather and Polyester.
  • Weight- 98.9g.
  • Conveniently clips onto your trousers or belt loop.
Available to purchase separately

Overall conclusion

In my mind, this magnetic system is a total game-changer & the way forward in the world of ND filters. The Haida magnetic family have it all. What I’d really like to see is a wider range of ND filters, my personal favourite would be a mighty 12 or 15 ND filter & more GND’s. I will most definitely be recommending them to my photography friends & workshop students. There’s no going back for me, magnetic all the way.

If you would like to read my recent test review of the Haida NanoPro Magnetic ND3.0 (10 stop) click here.

All Haida filters are assembled in their own optical workshop located in the beautiful Port City of Ningbo, China. “Haida” in English translates to “All rivers run into the sea, all rivers flow to one”. If you’d like to visit their website , Facebook  or Instagram.

If you would like to see more of my work; Follow me on Facebook , Instagram , Viewbug YouPic & 1X.

I hope this provides you with some useful information. Please feel free to ask me any questions or contact me below or Facebook Messenger.

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“All rights reserved” © Jenny Cameron 2021

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