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It is not always easy to juggle the extensive product catalogue offered by NiSi. At the same time, it is essential to have a wide range of products to ensure good compatibility and flexibility.

By answering a series of simple questions we will guide you in choosing the perfect products for your goal.

System 150
System 150

For ultra wide angle thread-less lenses

Does your lens have a front thread?

The first thing is to check your lenses to see if a front thread is present.

If all (or at least most of the ones you want to use with filters) have front threads, you should also note the size of the threads. Usually, you will find a size in mm followed by the “Ø” symbol on the front of the lens and/or barrel.

Which NiSi System to choose?
If you have thread sizes up to, maximum 67mm AND a mirrorless camera (Micro Fourth Third or APS-C) go to next point (1).
If you have the thread sizes up to, maximum 82mm, any type of camera, go to point (2). Otherwise go to paragraph (3).
If you have the Canon EF 11-24mm f/4 L USM, you need to go to the 180mm ad-hoc system.

1. 75mm square or screw-in filters

Knowing that your lenses have threads, you can use both slot-in filters with the M75 holder (i.e. System 75) and screw filters. If you haven’t chosen yet you can consider these points:

  • the slot-in 75mm filters can be easily adapted to lenses with threads from 39mm to 67mm (under 39mm you can use third-party step-up rings)
  • screw-in filters are specific for each size, you can also take a larger size and then use third-party adapter rings. But it is not recommended for big differences in size (e.g. from 39 to 67mm).
  • 75mm NiSi square filter holders allow the use of 1 polariser (included in M75 holder kits) and 2 square filters (usually 1 ND and 1 GND). So a total of 3 filters.
  • using several screw filters together is not recommended, for practical problems and possible vignetting. Remember, you can do this because circular NiSi filters have front threads, but you have to know the limits. The maximum recommended, however, is two screw-in filters.
  • The GND filter is exclusive to the square systems because it must be positioned on the light line (sliding vertically), with the screw-in filters the transition line would remain fixed in the centre.

Another important advice with the 75mm System is concerning the widest focal length available in your lenses. The M75 Holder has been designed to be compact, but we cannot guarantee that at the widest focal length there won’t be vignetting. We recommend, to be safe, to use the 75 System from 24mm equivalent full-frame focal length. This means 16mm on APS-C or 12mm on Micro Fourth Third cameras. In some situation, there are wider lenses working without vignetting (for example the Panasonic Leica DG 8-18mm f/2.8-4.0 ASPH, also called Panasonic Lumix G/Leica H-E08018) or Panasonic Leica DG Vario-Elmarit 8-18mm f/2.8-4 ASPH). However, we cannot advise every wider lens will work without vignetting.

If you are not sure about the widest lens you use, and some lenses are above 67mm filter thread, you’ll find our best seller 100 System the perfect holder for you.

At the bottom, in the “bonus” section (4) you will find more information about the choice between the Landscape polarizer and the Standard “PRO” polarizer.

2. 100mm square or screw-in filters

Knowing that your lenses have threads (up to 82mm), you can use both square filters with the 100mm holder (i.e. System 100) and screw filters. If you haven’t chosen yet you can consider these points:

  • the slot-in (square) filters of 100mm system can be easily adapted to lenses with threads from 49mm to 82mm (under 49mm you can use third-party step-up rings)
  • screw-in filters are specific for each size, you can also take a larger size and then use third-party adapter rings (step-up).
  • 100mm NiSi square filter holders allow the use of 1 polariser (included in V6 and V5 PRO kits) and 3 filters (usually 1 ND 100×100 and up to 2 GND 100×150). A total of 4 filters.
  • using several screw filters together is not recommended, for practical problems and possible vignetting. Remember, you can do this because circular NiSi filters have front threads, but you have to know the limits. The maximum recommended is two filters.
  • the GND filter is exclusive to the slot-in system because it must be positioned on the light line (sliding vertically) and with the screw-in filters the transition line would remain fixed in the centre.

Generally speaking, circular filters are recommended for beginners who are unfamiliar with the tools, both because of the lower cost and the ease of use of a single screw-on filter. If it is you, you can go to the NiSi circular filters page.

The square filters are perfect for those who already know how to use polarizer and ND, they are more flexible, offer more potential and also allow the use of GND. If it’s you, choose System 100: Holder, ND 100×100, GND 100×150 or a Kit.

At the bottom, in the “bonus” section (4) you will find more information about choosing between the Landscape polarizer and the Standard “PRO” polarizer.

Which NiSi System to choose?

3. 150mm square filters

If you are here, it means that your main lens (where you want to use the filters) has a thread bigger than 82mm or does not have the possibility to screw filters in. For example, the Tamron 15-30 f/2.8 (also G2), or the Nikon 14-24 f/2.8, Sigma 14-24 f/2.8 (both for Nikon/Canon and the DG DN version for Sony), etc.

In this case, you have to go to the 150mm System. NiSi has two types of 150mm Holders: Classic (Q-Series) or NiSi S5.

The ND and GND filters are always the same, 150x150mm (ND) and 150x170mm (GND).

If you want to use the polariser, go directly to section 3.2 (it is included in the S5 Holder Kit, but not in the Classic Q-Series).

Which NiSi System to choose?

3.1 – 150mm “Classic” Holder (Q-Series)

This series of 150mm filter holders is the most economical, it allows to use 2 or 3 filters 150mm wide depending on the model. It doesn’t have an adapter for a circular polariser like the NiSi S5. In this case you have to choose the right holder for the lens you have, they are not interchangeable because each lens has a different shape. You can find the complete list here.

With the Holder Classic for Nikon 14-24 f/2.8 and Tamron 15-30 f/2.8 you can use adapter rings to use them even with threaded lenses. You can find them under “NiSi 150mm Classic (Q Series) Adapter Rings”.

3.2 – 150mm square filters holder NiSi S5

The NiSi S5 is the most advanced version for your lenses with threads over 82mm or without one. You will always find a polariser included, a bag and on almost all holders the possibility to use an adapter for other threaded lenses. In addition, we offer the possibility to buy only the interchangeable main adapter ring for those who have multiple lenses without thread.

4. Bonus: Landscape Polariser or Standard “PRO” Polariser

The Landscape polariser offers two main advantages compared to the kit with standard polariser:

  • Unique polarising film, with a declared polarisation of 99.5%
  • External Nano Coating (NC) treatment, water-repellent and oleophobic for simple and precise cleaning

The Landscape polariser offers greater polarisation, this also has a slight effect on colour saturation and in general on some tones. For this reason, it is recommended for landscape photography, where intense polarisation is welcome. The Landscape Polariser is recognised as one of the best polarisers on the market and is also available in the circular screw-in format. We always recommend the V6, V5 PRO and NiSi S5 kits with Landscape polariser. In any case, you have to be careful with the strong polarisation and be able to dose it well especially with wide-angle lenses (it is usually applied on the foreground, rotating the polariser until the polarised area is at the bottom).

If you have any doubts about the NiSi product range, you can always contact us by email here (also using below form) or via WhatsApp below.

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