Nando Harmsen

Blocking out extreme amounts of light: review of the Haida One Million X Edition filter

Friday 31 July 2020, 14:14 by | 6,312 views | 11 comments

This article was translated from Dutch with the help of AI. Read the original.

Photographing with long shutter speeds is great fun. It allows you to capture beautiful movements, such as streams, waterfalls or waves at the seaside.

Or you can use long shutter speeds to make that movement disappear. A rough, moving water surface will then become smooth and even in appearance.

There are many ways to use long shutter speeds, all of which I cover in my Long Shutter Speeds course on Photofacts Academy.


The most commonly used filter for long shutter speeds is the 10-stop neutral density filter. This filter blocks no less than 1,000x the light. In bright sunshine, you can achieve a shutter speed of up to 30 to 60 seconds. There are situations in which you want to expose for longer. Using several filters at the same time is one option.

You can also choose an even darker neutral density filter, which blocks more light than the 10-stop filter. For this, I use a 15-stop neutral density filter from Haida, which blocks the light by no less than 32,000 times. Just work out what shutter speed you could achieve in bright sunlight.

Is even a 15-stop neutral density filter not enough? You now have the chance to buy a neutral density filter that blocks the light no less than one million times: the Haida One Million X Edition filter.

Nando Haida ND6

The Haida One Million X Edition filter, an ND6 filter capable of blocking 20 stops of light


The filter at a glance


The filter I have been given is intended for the Haida M10 filter system. It is the drop-in version, which fits into the filter slot and prevents light leakage perfectly.

Haida also supplies magnetic versions for the 150mm system, as well as the standard square 100x100mm and 150x150mm filters, so you are not necessarily tied to the Haida filter holder.

Red Diamond ND6.0

Haida's range of ND6 filters. Something for everyone.


How long do you need to expose with a 20-stop filter?


To get an idea of how much light a 20-stop filter blocks, I will compare it with a 10-stop filter.

With an unfiltered exposure of 1/30 second, that filter requires a shutter speed of 30 seconds with the filter fitted. This is what you can achieve in full sunshine. It makes the shutter speed 1,000 times longer.

The One Million X Edition filter makes the shutter speed one million times longer. An unfiltered shutter speed of 1/30 second will therefore become no less than 333,333.333 seconds with the filter fitted for a good exposure. Converting this number gives a shutter speed of no less than 9 hours, 42 minutes and 29 seconds. Do you have that much patience?

I have two more examples to give you an idea of what 20 stops means exactly. If you had a shutter speed of 1/1000 second without a filter, the 20-stop filter would give you an exposure of 17 minutes and 29 seconds.

With a shutter speed of 1/8000 second, the 20-stop neutral density filter gives you a shutter speed of no less than 2 minutes and 16 seconds.

Photographing the sun


This filter is very suitable for photographing the sun with a long telephoto lens. Normally, this is strongly advised against. A telephoto lens is a magnifying glass that further concentrates the sun's already bright light, making it even brighter.

Looking at the sun through a telephoto lens is the same as looking at the sun through binoculars. You will burn your eyes and be blind for the rest of your life. If you do this with a camera, you can be sure that it will burn a hole in your sensor after your eyes have been burned while trying to aim the camera.

I once photographed the sun with a telephoto lens fitted with a 10-stop filter and a 6-stop filter. I captured sunspots and the transit of the planet Mercury. With 16 stops of neutral density filters, I still had a shutter speed of 1/500 second at ISO200 and f/16.

Nando Haida ND6 sun 4

The transit of the planet Mercury, together with sunspots, on 9 May 2016. I used a Canon EOS 7D mark II with the EF100-400mm lens and a 2x teleconverter. With the Lee Little Stopper and the Lee Big Stopper, I got 1/500 second at ISO200 and f/16

The Haida One Million X Edition filter is particularly suitable for this kind of photography. Because it reduces the light by a factor of one million before it enters your lens, it is safe to photograph the sun this way.

Nando Haida ND6 sun 1

My first photo of the sun with the Haida 20-stop filter. The black spots are actually white clouds in a blue sky. It gives you a good idea of how bright the sun is (800mm, ISO200, f/11, 1/200sec)

Nando Haida ND6 sun 3

A photo of the sun with the Haida 20-stop filter, with light high cloud in front of the sun (800mm, ISO100, f/11, 1/5 sec)


Can you use the filter for landscapes?


Of course, you want to be able to use a filter in as many ways as possible, not just for photographing the sun. I also started using the filter to photograph landscapes, to see the effect of these extremely long shutter speeds.

A landscape is often photographed with a wide-angle lens and a large depth of field. A large depth of field means using a small aperture, which means your shutter speed already needs to be somewhat longer.

The calculation example I gave earlier, in which more than nine hours of exposure was required, will therefore be reached quickly with this filter. This greatly limits its use.

The Haida One Million X Edition filter can mainly be used in clear, sunny weather, with an aperture that is not too small. At a shutter speed of 1/160 second and ISO100, I needed to expose for more than 54 minutes with the filter when I increased the ISO value by 1 stop.

Nnado Haida ND6 LE 2

An exposure time of 3,600 seconds, or one full hour. At these shutter speeds, a quarter of an hour more or less makes no difference. Note the light leakage at the edges. (18mm, ISO200, f/8, 3600 sec)


The result of an exposure of almost 1 hour does not look too bad. But two things stand out. First, light leakage has occurred, which can mainly be seen at the edges of the photo, and, although it cannot be seen at this size, the noise level has increased considerably.

Light leakage is a major problem with this filter. The filter itself seals very well, and the light leakage does not occur there. In this case, it is light leaking through the camera's optical viewfinder.

You might think this cannot happen because the mirror is raised and closes off the viewfinder, but every mirror has a section that lets light through so that the autofocus and exposure meter can work.

When photographing with these long exposures, it is very important to cover the viewfinder as well. Of course, this is not necessary if you use a mirrorless camera. But all cameras do suffer from increased noise and hot pixels.

Nnado Haida ND6 LE 1

For daylight situations, the Haida 20-stop filter can in principle be used. But beware of the dangers of light leakage. A dark bag over the camera prevents this problem. (16mm, ISO200, f/8, 1636 sec)

The longer you expose, the more noise is produced. I have noticed that this becomes very distracting with exposures longer than half an hour. If you are going to use the Haida One Million X Edition filter for extremely long shutter speeds, keep this in mind.

How severe that noise is depends on many other things. How old is your sensor, what type of sensor do you have, and how often has the sensor been used, in other words, how much wear has it had?

Long shutter speeds with a shallow depth of field


The Haida One Million X Edition filter can be used particularly well for photographing with very long shutter speeds and a very shallow depth of field.

Nando Haida ND6 shallow DOF 2


A shallow depth of field requires a large aperture, which allows a lot of light through your lens. The result is a faster shutter speed. With a 20-stop filter, it is still possible to achieve that long shutter speed.

I already mentioned the 1/8000 second shutter speed, which must be extended to 2 minutes and 16 seconds with a 20-stop filter. It allows you to create a unique type of photo.

Nando Haida ND6 shallow DOF 1

Using extremely long shutter speeds with a shallow depth of field. You can call this unique (200mm, ISO100, f/2.8, 534 sec)

My findings


The first thing I noticed was the extremely long shutter speeds that can be achieved with this 20-stop neutral density filter. The second thing that really stood out was the preservation of colour accuracy. There is absolutely no colour shift or colour cast to be seen.

That is impressive, especially because many manufacturers already struggle to guarantee colour accuracy with a 10-stop filter.

Nnado Haida ND6 LE 3

A one-hour exposure by the sea. The result is a smooth, even water surface. The photo was taken at midday. (28mm, ISO100, f/11, 3600 sec)

It was also striking how much light leakage you see with extremely long shutter speeds on a DSLR. The need to cover the viewfinder is obvious, although this is actually always advisable in bright sunshine. Mirrorless camera users do not have this problem, of course.

The filter is extremely suitable for photographing the sun with long focal lengths. It makes photographing sunspots, planetary transits or even the International Space Station in front of the sun much easier.

Nando Haida ND6 sun 2

Photographing the sun with a little cloud can produce unusual results. (463mm, ISO100, f/9, 1/80 sec)

For landscapes, the use of this filter is very limited. Extremely long shutter speeds are required, with the resulting increase in noise. But for landscapes with a long shutter speed combined with a very shallow depth of field, it works very well.

Nando Haida ND6 shallow DOF 3

The long shutter speed and shallow depth of field give the photo a lovely soft appearance. Make sure there is an object in the frame that does not move. (200mm, ISO200, f/2.8, 660 sec)

What I liked about this filter



  • Photographing the sun is easy, without much danger
  • No colour cast or colour shift at all, completely colour-neutral
  • The M10 drop-in system provides extremely good protection against light leakage
  • Extremely long shutter speeds with an extremely shallow depth of field are possible
  • The name One Million X Edition filter


What I liked less about this filter


  • Far too dark for normal long exposure photography
  • Normal long exposures are limited to sunny days
  • No black bag is supplied to cover the camera body and prevent light leakage through the viewfinder (on DSLRs)


The last point, a bag to cover the camera, is something Haida is taking seriously after my first review. It may, hopefully, be included at a later date.

An alternative


If the 20-stop filter is too dark after all, a 17-stop filter is also available. It does not block the light one million times, but 'only' 128,000 times. It fills the gap between the 15-stop filter and a 20-stop filter.

The filter was supplied by Haida filters in China. Haida filters are available from omnifoto.nl. Mention my name, Nando Harmsen, when ordering and receive a nice gift with your order.

What do you think of a 20-stop filter? Do you think it has a practical use, or do you think its use is too limited for it to be of any real benefit? Would you consider buying one? Let us know your opinion in a comment below this article.

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Nando Harmsen

About the author

Nando Harmsen has been photographing for more than 40 years. He specialises in wedding photography and landscape photography. Nando also gives talks, workshops, masterclasses and photo trips, and regularly reviews new and interesting equipment.

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11 comments

  1. Alex
    Alex wrote on Sunday 2 August 2020 at 10:16  | reply

    Beautiful photos and review. I'm curious what kind of effect you get with this filter in an urban setting. I think all the people/cars/moving objects disappear, giving you a serene urban setting.

    Translated from Dutch.
  2. Nando
    Profile Nando wrote on Tuesday 4 August 2020 at 09:31  | reply

    @Alex:
    That's right. You can't see any of that anymore.

    Translated from Dutch.
  3. Donald Willemsen
    Profile Donald Willemsen wrote on Tuesday 4 August 2020 at 15:49  | reply

    A fascinating and informative article. This article is also encouraging. It makes me want to get started with it too. But the problem is that I would first have to buy a basic set. Since I do have confidence in Nando's opinion of Haifa filter sets, I would like to buy those as well. I took a look at the prices and a basic set already comes to +/- €435. That will mean saving for months, if not a whole year. For now, I will have to make do with my HOYA variable ND filter. In any case, thanks for this fascinating and inspiring article.

    Translated from Dutch.
  4. Paulussie
    Profile Paulussie wrote on Tuesday 4 August 2020 at 16:47  | reply

    Interesting piece. But that 20x is just a bit too much of a good thing.
    And that bag over the camera, my D500 has a little disk in the eyepiece, and my D7000 and S80 had a cap/ disk that you can put over the eyepiece. I assume other manufacturers have something like that too, so such a bag isn't necessary.

    Translated from Dutch.
  5. Nando
    Profile Nando wrote on Wednesday 5 August 2020 at 09:46  | reply

    @Paulussie:
    The D500 has it, and I believe the D850 does too. With Canon, it's only the 1D series that has this.
    Other Canons have a little cap that you can slide over your eyepiece, but that's not the most charming solution and doesn't always work well. A bag is much easier, faster, and more practical.

    Translated from Dutch.
  6. Donald Willemsen
    Profile Donald Willemsen wrote on Wednesday 5 August 2020 at 14:53  | reply

    @Nando, I just want to respond to what you write about the cap that you can slide over the viewfinder on a Canon to prevent 'dirty' air from entering the sensor through the viewfinder. That cap is often attached to the strap that comes supplied with the camera when you buy it. An eyecup also comes standard on the viewfinder. So every time you want to slide that cap (which is attached to the strap) over the viewfinder (eyepiece), you have to remove the eyecup. You can easily lose such a small thing and it also breaks easily because it is made of very thin, fragile plastic. So if you regularly have to remove that eyecup in order to take certain photos, the eyecup will gradually become looser and looser on the viewfinder. The result: the eyecup slides off the viewfinder too easily and then you quickly lose it. This has already happened to me about 4 times. An eyecup like that costs around €10, so that's not too bad. So I think your solution with such a bag is a cheaper solution.

    Translated from Dutch.
  7. Nando
    Profile Nando wrote on Wednesday 5 August 2020 at 15:21  | reply

    @Donald;
    If that cap is attached to your strap, you won't lose it. Of course, you only take the eye-cup off when necessary. I simply don't have it on one of my cameras at all.

    That eye-cup won't become looser if you neatly press the sides when taking it off. That way you press in the hooks that hold it in place. It only breaks if you pull it off without pressing that in.
    The cover cap is made of rubber, and not exactly designed for frequent use. I think it's an eyesore. Hence the bag.

    Translated from Dutch.
  8. FHoogeboom
    Profile FHoogeboom wrote on Monday 10 August 2020 at 12:23  | reply

    As for that Canon cover, I took it off the camera strap (which I don't use anyway) and attached it to my body with a little cable so I always have it at hand. I work without an eye-cup, so it doesn't get in the way when putting it on or removing it either.

    Translated from Dutch.
  9. Nando
    Profile Nando wrote on Tuesday 11 August 2020 at 11:04  | reply

    @FHoogeboom:
    That is of course also possible. vrolijk

    Translated from Dutch.
  10. Marc Roofthooft
    Profile Marc Roofthooft wrote on Saturday 10 August 2024 at 11:18  | reply

    How do you meter the light? With an external light meter? Because with the camera's light meter you have problems when you point it at the sun.

    Translated from Dutch.
  11. Nando
    Profile Nando wrote on Sunday 11 August 2024 at 14:41  | reply

    Not with a 20-stop filter in front of your lens. Then you can just use the light meter. It is recommended to underexpose slightly.

    Translated from Dutch.

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