Olympus 7-14 Polariser Details

Although the 7-14 Adapter is designed for the Nisi V5/6 filter holder, the Polariser which is included cannot be used. The 7-14 Adapter replaces the Nisi Adapter and the Polariser. Whilst it would have been possible to accomodate it, large amounts of vignetting would occur. Currently the only circular polarisers which can be used with the Olympus 7-14 and other filters are 150mm systems. A few systems are available, including one from Nisi, but the size makes them impractical for this lens and indeed for other M4/3 lenses. 

As extreme Wide-Angle lenses and Polarisers are often never happy combinations the loss of being able to use one is less important than the advantage of being able to use more practical sized filters. There is a however a work-around for using a polariser with this lens. Care is needed when using polarisers on ultra wide lenses. Please see the details below for important information.

Polarisers with Ultra Wide Lenses

Limitations of use for polarisers on ultra wide lenses is not because of quality of filter or lens, it is just the nature or physics of light.

Light from the sun is not polarized and can be affected by many things, haze, angle of view from the sun, diffraction, and reflective surfaces. As light passes through the atmosphere blue wavelengths are affected, which is why the sky can appear a paler blue in different angles and different seasons.

For Photographers, what is important to know is that only a narrow band of a scene, around 85º, will have the best effect from a polarizer, around 12mm or 24mm Full Frame, and at around 90º to the sun. Ultra wide angle lenses will capture more of a scene and therefore can have strange effects.

The image above demonstrates this. Taken on Llandwyn Island Anglesey using the 7-14 f2.8, the sun was not at 90º to the scene, and the lens took in a huge 110º view. The effect is a pronounced dark blue circle in the sky. The image would have been more successful using a 12mm lens and polariser, or no polariser. The same effect will also occur on a large flat body of water such as a lake, where part of the image will have reflections removed and part will not.

Polarisers with Ultra Wide Lenses

The actual physics of light from the sun and how it interacts with the sky affects which areas have polarised light. The diagram above shows how the optimum angle for effective polarization is 90º to the sun, and the maximum field of view that will have polarised light is around 85º. An ultra wide lens such as the 7-14mm has a field of view of 110º, and will always include parts of the sky that cannot be polarised, hence the odd effect when using a polariser.

When the sun is not at right angles the dark area may be towards the side instead. Or, when shooting towards the sun or directly away the effect will be reduced because polariser has less effect.

Shooting Super Wide

This example taken in the Lake District again shows the effect of uneven tones using a polariser with a super wide field of view. The image is a 3 shot vertical panoramic taken hand held with the Olympus EM1mk2 and 7-14 Pro, hence the almost fisheye distortion in the foreground. Notice how dark blue the sky is just off centre, and very pale cyan to the right. The effect is disguised by the clouds so it is acceptable.

  • Full Polarisation

Vertical orientation gives full polarisation

  • Part Polarisation

90º orientation gives part polarisation

  • No Polarisation

180º orientation gives zero polarisation

Using a Square Polariser

The Nisi Square 100×100 HD Polariser is a useful workaround when the opportunity arises, and is very effective when using a polariser on a wide lens is understood. It can be easy to ruin a shot without careful inspection. When using a Graduated ND, the square polariser cannot be rotated, so inserting it into the holder as show will give adequate control.

Tip-In some shots you may find the polariser has achieved exactly the desired effect, but has badly affected the sky. Take another shot and rotate or remove the polariser and blend the two images

Examples Using Square C-PLs

All images taken with Olympus Em5mk11 and Em1mkii with the 7-14 Pro and the Adapter. Images shown in 4/3 aspect ratio with no vignetting.

Reduce the Sky

Two examples showing when the square polariser is perfectly acceptable to use. In both images reflections needed to be removed from wet rocks. The sunset image suited portrait format, which reduces the width of the sky. The second image has no blue sky. A grey sky, or even a blue sky with plenty of cloud texture will disguise any poor polarisation.

Complex Skies

Skies with plenty of of texture text to work well with a polariser and wide lenses. In both images the clouds conceal any variance in polarisation, whilst still allowing colour to saturate and reflections to be reduced on wet rocks and stones.

No Polariser

Polarisers can be one of the most overused filters, and when used with ultra-wide lenses need to be used with care, not to to avoid uneven polarisation. In both of these images, a polariser could have given uneven tones to the sky, but more importantly, would have removed the reflections on the water. These images rely on the mirror reflections.

Tip-Use a polariser with care. Ensure you actually need to use one, and watch those reflections.

But….wow, what a terrific piece of kit!!! I now see just how much fun the filter system is, especially with the Olympus 7-14 lens. For anyone who’s been putting off buying filters for the 7-14 because of a lack of filter attachment method, the wait is over. Phil’s adaptor is beautifully engineered and manufactured. And his support was A1 too.

Adam Kerner, New Zealand
Being a landscape photographer I tried attaching filters with elastic bands but could not find a way to use ND’s for long exposures. This does the job perfectly and with no light leaks. I took Phil’s advice and also tried the Nisi IRND1000 despite having a Big Stopper and he was right, if you do long exposures, this is the one you need.
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Can’t thank you enough for the adapter, I searched and searched hoping for a solution. It has released my lens from the burden of not being useable with filters and now I can use its full potential. What’s more Phil responded to every question, gave me tips and even called me to make sure I was happy. Great kit and great service.

Peter Marshall, United Kingdom

I searched and searched but could not find how to use filters with the 7-14 and nearly bought an alternative lens. Phil’s Adapter came highly recommended when I searched on Social Media. Very pleased and thanks so much to Phil for all the help he also gave using filters.

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Superb, it has allowed me to use this amazing lens to its fullest, works perfectly and doesn’t even take space in my bag. It fits amazingly well and I had full confidence walking around with it attached to the lens.
David Holt , United Kingdom

I was looking for a solution to use filters on the 7-14 and found Phil’s adapter came highly recommended, it is actually used widely here in Oz. Very well made and does the job perfectly.

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There have been a number of ad hock attempts to solve the riddle of using filters on the 7-14. This does it perfectly. And it introduced me to Nisi. I got a new holder with adapters for other lenses AND a polarizer for half the cost I was about to spend on a Lee polarizer.
Robert Taylor, United Kingdom

Well made does the job exactly as it should and fits like a glove, very impressed with the quality and materials.

David Thompson, United Kingdom

This is exactly what I have been looking for, initially skeptical but no need, it fits perfectly, simple to use and a superb must have accessory for the 7-14 Pro.

Don Cheadle, United Kingdom

Great kit, perfect fit, thought I would have to look at a 150mm filter solution but really no need, great job!

Andrew Mason, United States

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