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A NiSi 100mm filter holder with a graduated ND filter on a camera, set up low on snowy rocks facing a mountain range at dusk

NiSi 100mm Square Filter System

One holder.
Every lens you own.

Square filters in a holder you move between lenses from 49mm to 95mm. Three slots plus a polarizer, no vignetting at 16mm on full frame, and grads you can slide to the horizon instead of hoping it lands where the glass says.

  • 3 slots + CPL
  • 16mm, no vignetting
  • 49 to 95mm threads
  • 2 to 20 stop NDs
Shop the system

Before you choose

Start with the holder

V7 or V7 Alpha?

Both take three 100mm wide, 2mm thick filters, rotate a full 360 degrees and lock, and stay out of the picture at 16mm on full frame. The difference is the polarizer: the V7 has one built in that you can turn with filters loaded, the Alpha does not.

All V7 system parts
The NiSi V7 100mm filter holder kit on a white background, with the holder, True Color CPL, adapter rings and lens capWith True Color CPL

V7 Filter Holder Kit

In the box

  • V7 holder and the True Color CPL, which sits in the 82mm main adapter
  • Four adapter rings: 82mm main, plus 77mm, 72mm and 67mm
  • Lens cap and storage pouch

The one most people should buy. The CPL turns on a geared wheel with all three square filters still in the holder.

The NiSi V7 Alpha 100mm aluminum filter holder from the front on a white backgroundEntry level

V7 Alpha

In the box

  • The same filter holder and clip design as the V7
  • An 82mm adapter ring, with no polarizer mount or rotation wheel
  • Takes the V7 rings from 49mm to 77mm, sold separately

The lowest cost way in. For a polarizer, slide the 100x100mm True Color Square Polarizer into a slot instead.

V7 kitV7 Alpha
Filter slots3, for 100mm wide, 2mm thick filters3, for 100mm wide, 2mm thick filters
PolarizerTrue Color CPL included, turned by a geared wheelNone built in; use the 100x100mm square polarizer
Rotation360 degrees, with rotation lock and release pin360 degrees, with locking pin
VignettingNone at 16mm on full frameNone at 16mm on full frame
Rings included82mm main, 77mm, 72mm, 67mm82mm
Also includedLens cap, storage pouchNone

Adapter rings, one per lens

49mmadapter ring 52mmadapter ring 55mmadapter ring 58mmadapter ring 62mmadapter ring 67mmadapter ring 72mmadapter ring 77mmadapter ring 86mmadapter ring 95mmadapter ring

The holder moves, the rings stay. Leave a ring on each lens and the holder clicks from one to the next. Your thread size is printed on the front of the lens or inside the lens cap, next to the diameter symbol. The rings fit the V5, V5 Pro, V6, V7 and C4; the full range is in V5/V6/V7 Adaptor Rings.

Lenses with no filter thread

SonyFE 14mm f/1.8 GM NikonZ 14-24mm f/2.8 S Olympus7-14mm f/2.8 PRO Laowa12mm f/2.8

Bulb-fronted ultra wides need a holder that clamps around the lens hood instead of a ring. There is also one for the Laowa 10-18mm f/4.5-5.6 FE, and the Switch, a holder whose two slots rotate independently so two grads can sit at different angles. The Switch mounts on the 82mm main adapter from the V6, V5 Pro and V5 kits.

Holder plus filters, one box

Pick a kit.

Every V7 kit is the full V7 holder kit, True Color CPL and rings included, with a set of filters and a Caddy pouch to carry them. They cost less than buying the same parts one by one. Already have a holder? The ND kits are the filters on their own.

All 100mm kits
V7 kitFilters included
Starter KitND1000 (10 stop), Medium GND8 (3 stop)
Advance KitND64 (6 stop), ND1000 (10 stop), Medium GND8, Reverse GND8
Professional KitND8 (3 stop), ND64, ND1000, ND32000 (15 stop), Medium, Soft and Reverse GND8
Night Photography KitNatural Night (light pollution), Star Soft
Explorer Starter BundleExplorer hardened glass: ND1000, Medium GND8
Explorer Advanced BundleExplorer hardened glass: ND64, ND1000, Medium GND8, Reverse GND8
Explorer Professional BundleExplorer hardened glass: ND8, ND64, ND1000, Medium GND8, Reverse GND8

ND kits, filters only

BaseND8 and ND64: 3 and 6 stops Long ExposureAdds the ND1000: 10 stops ExtremeAdds the ND32000: 15 stops

Each ND kit comes in a NiSi soft filter pouch with replacement foam gaskets. The V7 kits also include a lens cap, a Clever Cleaner, a cleaning cloth and a blower; the Explorer bundles include the Clever Cleaner.

What goes in the slots

Which filter?

Square filters come in two shapes. 100x100mm is a solid ND, the same density edge to edge. 100x150mm is a graduated ND, dark at the top and clear at the bottom, with the extra height so you can slide the transition to wherever the horizon sits in your frame.

Solid ND, 100x100mm

3 stopsND8: softer water, a touch of blur 6 stopsND64: moving cloud, seconds long 10 stopsND1000: glassy water in daylight 15 to 20ND32000 and the 20 stop Black Hole

NiSi IR ND filters are optical glass with Nano coating on both sides, and a foam gasket on the back. They always go in the slot closest to the lens, so the foam seals against the holder and no light leaks in around the edges during a long exposure. For rough trips, the Explorer Collection uses B270 tempered glass, about twice the strength of a standard glass filter, with the same coating.

Graduated ND, 100x150mm: four kinds of transition

A castle on a forested hill below a bright sky, photographed with a medium graduated NDMedium

For things that break the skyline. Buildings, mountains and trees that poke above the horizon, without a hard edge running across them.

A lake and green hills under cloud, photographed with a soft graduated NDSoft

For uneven horizons. The longest blend from dark to clear, for mountain country where there is no single line to put it on.

A rocky coast with a flat sea horizon at sunset, photographed with a hard graduated NDHard

For a clean, flat line. A clear boundary between dark and clear, made for the horizon at sea.

A sun setting over a flat field, photographed with a reverse graduated NDReverse

For a sun on the horizon. Darkest at the line and fading toward the top, because at sunrise and sunset that is where the light is strongest.

All of them are in 100x150mm Graduated Filters, mostly in 2, 3 and 4 stop strengths. After dark, the Natural Night and Star Soft filters cut light pollution and enlarge the brightest stars, and the square True Color Polarizer is the polarizer for holders without a built-in CPL.

How it fits together

Ring, holder, CPL, filters.

Four parts, in the order they go on. Once the rings are on your lenses, moving the whole setup to another lens takes a few seconds.

Ring on the lens

Screw the adapter ring for your filter thread into the 82mm main adapter, or use the 82mm main adapter on its own for an 82mm lens.

CPL into the main adapter

Line up the white marks on the True Color CPL and the main adapter, and twist. The point to point mount guides it in and lets it out again with little effort.

Holder onto the adapter

The V7 holder clips onto the main adapter. Rotate it to the angle you want, then lock it so a grad cannot drift off the horizon.

ND first, grads in front

The solid ND goes in the slot nearest the lens, foam side in, so it seals. Grads go in front, where you can slide them up and down to place the transition.

With filters in, turn the CPL with the geared wheel on the holder. There is no need to take anything out to find the polarizing angle.

Why the V7

Built from photographers' notes.

The V7 is the most advanced 100mm holder NiSi has made, refined from what photographers asked for after the V5 and V6. CNC machined from aviation grade aluminum, with a matte black frosted finish that keeps reflections down.

01 / 06

Three filters and a polarizer, at 16mm

Three slots for 100mm wide, 2mm thick filters, square or rectangular, plus the CPL behind them. On a 16mm lens on full frame none of it shows in the corners.

The NiSi V7 100mm filter holder with adapter rings and lens cap in front of its grey storage pouch on a dark wooden surface

02 / 06

Clips that only touch the edges

The clips press in from left and right and grip the filter along its edges, so they never touch the glass. Filters slide in smoothly, and the guides make them easy to seat.

Close-up of the filter clip on the side of a NiSi V7 holder, on a white background

03 / 06

A polarizer with no yellow cast

Most CPLs warm the picture. The True Color CPL does not, and its Pro Nano coating repels water and oil. A geared wheel on the holder turns it with every filter still loaded.

The geared edge of the NiSi True Color CPL for the V7 holder, lit against black

04 / 06

Line up the marks, twist, done

The point to point mount guides the CPL into the 82mm main adapter. Match the white marks and turn, and it locks in place; reverse it to take the CPL out with little effort.

The white alignment mark on the NiSi V7 CPL lined up with the mark on the main adapter

05 / 06

Rotate it, then lock it

The holder turns a full 360 degrees to put a grad on a tilted horizon, then the lock holds it there. A bump of the tripod no longer moves the transition.

The rotation lock on a NiSi V7 holder, with the lock and unlock positions marked beside the gold release pin

06 / 06

Cap it and pack it

The V7 lens cap fits the 82mm adapter ring and covers the lens and CPL, so the ring and polarizer can stay on between locations. The pouch holds the holder, rings and CPL, and hangs from a tripod leg or a belt.

A Nikon mirrorless camera with a NiSi V7 lens cap fitted over the adapter ring on the lens

Questions

Before you buy.

Why use a square filter system instead of screw-on filters?

One set of filters works on every lens. The holder mounts on an adapter ring, and the rings are the only lens specific part, so the same square filters go from a 16mm to a 70-200mm. Square grads can also slide up and down and rotate, so you put the transition on the horizon in your composition rather than where a round filter fixes it.

Which lenses will the 100mm system fit?

Lenses with a standard filter thread from 49mm to 95mm, using the matching adapter ring. Rings come in 49, 52, 55, 58, 62, 67, 72, 77, 86 and 95mm, and the 82mm main adapter is part of the holder. Bulb-fronted ultra wides with no filter thread, such as the Sony FE 14mm f/1.8 GM or the Nikon Z 14-24mm f/2.8 S, have their own dedicated holders.

V7 or V7 Alpha, what is the difference?

The filter holder and clips are the same. The V7 kit adds the True Color CPL, which mounts in the 82mm main adapter and turns on a geared wheel with filters loaded, plus three more adapter rings, a lens cap and a pouch. The V7 Alpha comes with an 82mm ring and has no polarizer mount, so if you want to polarize with it, use the 100x100mm True Color Square Polarizer in one of the slots.

How many filters can I use at once?

Three square or rectangular filters, 100mm wide and 2mm thick, plus the circular polarizer on the V7. A typical stack is a solid ND in the back slot and one or two grads in front of it.

Will it vignette on a wide lens?

The V7 and the V7 Alpha show no vignetting at 16mm on full frame. Wider than that, use one of the dedicated holders for ultra wide lenses.

Which slot does the ND filter go in?

The slot closest to the lens. NiSi IR ND filters have a foam gasket on the back that seals against the holder, which stops light leaking in around the edges during a long exposure. They only go in one way: the edges where the foam stops short go into the clips, and the edges where the foam runs right to the edge sit at the top and bottom.

100x100mm or 100x150mm?

100x100mm is for filters with the same density across the whole glass: solid NDs, the square polarizer, Natural Night and Black Mist. 100x150mm is for graduated filters, where the extra height lets you move the transition up and down the frame.

Medium, Soft, Hard or Reverse grad?

Medium for scenes where buildings, mountains or trees break the skyline. Soft for an uneven horizon with no single line, typical in the mountains. Hard for a clean, flat line such as the horizon at sea. Reverse for a sunrise or sunset, where the light is strongest right on the horizon, so the filter is darkest at the line and fades toward the top.

What is the Explorer Collection?

Filters made from B270 tempered glass, roughly twice the strength of a standard glass filter, with the same Nano coating as NiSi optical glass filters. They are much less likely to break if dropped, though not unbreakable. The range covers ND8, ND64 and ND1000 in 100x100mm and Medium, Soft and Reverse GND8 in 100x150mm.

Do NiSi make 100mm kits?

Yes. The V7 kits pair the full V7 holder kit with a set of filters and a Caddy pouch, from the Starter Kit with a 10 stop ND and a Medium grad up to the Professional Kit with four NDs and three grads. The Explorer bundles do the same with hardened glass, and the Night Photography Kit adds Natural Night and Star Soft. If you already have a holder, the ND Base, Long Exposure and Extreme kits are the filters on their own.

How should I clean the filters?

Blow the dust off first, then wipe with a clean microfiber cloth and an alcohol-free lens cleaning fluid. The Nano coating repels water and oil, so most marks lift off easily. The V7 kits include a Clever Cleaner and a cleaning cloth.

FAQs

Why use a 100mm square filter system?

Being simple to use and versatile, a square 100mm filter kit is an excellent choice for a multitude of applications. By using a filter holder and adaptor, square filters can be used over multiple lenses, making them a great long-term investment for use with many different lenses. The NiSi 100mm filter holder kit lets you stack multiple filters with vignetting, and gives you the option to move filters in order to match your composition.

What lenses are compatible with a NiSi 100mm filter holder kit?

100mm filter holders support a huge range of lenses with a standard filter thread. You'll find our 100mm holder can support filter threads from 49mm to 95mm with an adaptor.

Does NiSi offer 100mm filter kits?

NiSi offers a range of 100mm filter kits to suit every level of landscape photographer. Each kit contains a NiSi 100mm filter holder, adaptors, ND filters, GND filters, and a case.

Why should I buy a NiSi 100mm square filter kit?

Thanks to our practical and comprehensive collection of 100mm filters and accessories, our NiSi 100mm square filter kits are a superb option for professionals and anyone new to landscape photography. Our all-inclusive kits are just one of the reasons customers trust us to fulfill all their photography needs. Not sure which one of our kits is best suited to your needs? No problem. Get in touch with our team for all the information you need about picking the perfect 100mm square filter system.

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