Every cinematographer should understand why and how to use neutral density (ND) filtration. The value of ND filters is priceless for crafting the most memorable, cinematic shots.

NATural Neutral Density filters use dual-layer ND elements that work in harmony to assure a clear, neutral image without any unwanted tint.

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You won’t want to depend solely on a VariND, but it’s a good idea to have a solid one in your kit, especially if you’re a documentary filmmaker and need to move quickly.

When shooting with a motion picture camera, you have a Base ISO, a required shutter (almost always 180 degrees unless looking for a special effect), and your Lens T-stop. The Lens T-stop is important to maintain the same depth of field throughout shooting conditions so that you are exposing a variety of shots at the same level. In filmmaking, you don’t change the lens and camera settings much when dealing with exposure levels. Instead, you add or take away ND.

At your foundation, you’ll need Straight NDs that you can count on. To see how Tiffen’s Straight NDs perform, take a look at our side-by-side comparisons in the video below.

This can help make people look less shiny, but won’t work when you are using two polarizers together in a VariND system. It changes the way a pola works to make it more about cutting light off from the lens.

LED Spotlights mainly use COB LED Chips as the light source. It directly encapsulates low-power chips on an aluminum substrate for rapid heat dissipation. The chip area is small and the heat dissipation efficiency is high. It can better control the smaller light-emitting surface. At the same time, the CRI of COB chips has basically reached above 90. It can better restore the true color of the illuminated object. The light and shadow of the object illuminated by the spotlight with a COB single-chip light source are three-dimensional and clear. Most downlights are based on patch low-power lamp beads, and multiple small-sized chips are arranged and combined to form a light-emitting source, and the light-emitting surface forms a floodlight effect. The light and shadow of the object illuminated by the LED chip light source are jagged, ghosted, and blurred.

The first thing you may notice about Tiffen’s NATural NDs is their bronzed appearance, rightfully giving them the impression of the next layer of ND technology. That’s because these NDs are designed to reflect away infrared (IR) and ultraviolet (UV) contamination.

In fact, IRND filters are ideal for HD cameras since they have greater low-light sensitivity and a greater sensitivity to IR contamination. So, if you were to just use an ND filter to counter the increased light sensitivity, the IR pollution will be unavoidable.

Downlight fixture: Because the above-mentioned downlights and spotlights are different in internal structure, they have more different light emissions. The light-emitting angle of the downlight is generally relatively large, between 90-120 degrees, and the light tends to be astigmatic.

As we mentioned above, there are a few key reasons why you would want to use ND filters for cinematic effect. Think of it this way, using an ND can be the difference between capturing a milky sky with fleeting clouds overhead, full of dramatic detail, or just a blown-out, white abyss.

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Spotlights‘ beam angle is generally narrow, basically less than 45°, and the common ones are 15, 24, 36/45°. All have light-gathering properties. It has a reflector or lens that will process the light twice. Professionally speaking, the light has been secondarily distributed. In this case, the light will be more accurate.

The f-number of an optical system, such as a camera lens, is the ratio of the system's focal length to the diameter of the entrance pupil.

Spotlight. The light angle of spotlights can often be adjusted up and down by 15-30°. Some spotlights can even be rotated 360°+90° up and down, such as gimbal downlights. You can adjust the direction of the light at will, and it can shoot the light to the designated place, which is also an important reason why it can be used as a key lighting fixture. At the same time, the location of the light source is generally designed to be hidden inside the lamp body, with a large shading angle, so that the human eye cannot see the light source inside the lamp, which greatly improves the anti-glare effect and is more conducive to creating a more comfortable light. surroundings. The performance of downlights in this respect will be much worse.

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In thespotlight

Spotlights are directional lighting fixtures designed to focus light on a specific area or object. They typically have a concentrated and adjustable beam that allows for precise illumination of targeted spaces, such as artwork, architectural features, or specific points of interest. Spotlights are commonly used in both residential and commercial settings for accent lighting, highlighting specific elements in a room or space. They come in various types, including track-mounted spotlights, ceiling-mounted spotlights, or Flood LED Spotlights. Today we mainly talk about the ceiling mounted spotlights.

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At its most basic form, neutral density filters allow you to control the light that enters your sensor. Think of it much in the same way sunglasses work over your naked eye. Filters help you see more clearly and expose for more texture and details, while not affecting your color. And, that’s precisely what inspires the “neutral” in neutral density.

What this does is increase your clarity and color fidelity. Water White filters are often crafted with infrared technology to reduce IR pollution.

Downlight. Downlights are fixed luminaires that emit light vertically downwards. They have a large light exposure area and are suitable for acting as general lighting in the space. They can evenly spread the light throughout the space. such as living rooms, shopping malls, supermarkets, hotel halls, etc.

OTF can also be defined in terms of PSF, as OTF(ν)=∫PSF(x)e-iνx dx, where x is the spatial coordinate in the image plane. It implies that OTF is the Fourier ...

Spotlight. It is a highly condensing lamp, and its light irradiation has a specific target. Generally used as local lighting or accent lighting to highlight illuminated objects, such as commodities, decorative paintings, background walls, etc., it can well express the color and texture of the objects, enhance the contrast of light and dark in the space, highlight the sense of hierarchy, and create atmosphere.

If you need more help with understanding diffusion and filtration, we also offer a super helpful course: How To Use Lens Diffusion. In this course, Shane Hurlbut, ASC takes you through the proper use of filters and clues you in on essential advice that you’ll only receive from a professional cinematographer!

When it comes to cinematic filters, you’ll require Black diffusion for their softening qualities that present a small, yet satisfying glow on overly sharp or well-defined imagery while still maintaining contrast – this is what the “black” in Black Pro-Mist defines.

In indoor lighting fixtures, there are two types of light fixtures(downlights and spotlights). Many people will not distinguish them, thanks to their appearance, shape, installation method, and installation location are very similar, but just call all downlights, spotlights, or ceiling lights “downlights”, there are still many differences between them in many details and specific use in engineering.

LED panel lights occupy a large proportion of the commercial lighting market. As people’s demand for commercial lighting continues to grow, more and more LED manufacturers have increased their investment…

VariNDs (Variable NDs) are used in place of multiple fixed filters, allowing you to change the amount of light entering your lens. It shares the same ease of use that you would get with a zoom lens, where you can control it just by turning it.

Downlights, also known as recessed lights or pot lights, are lighting fixtures that are installed into a hole opening in a ceiling. These fixtures are designed to emit light in a downward direction, creating broad illumination. They are commonly used in various settings, such as homes, offices, retail spaces, and other indoor environments, to provide task lighting, ambient lighting, or accent lighting. Downlights are available in a variety of designs and sizes. There are surface mounted and recessed types for your choice.

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For tests and side-by-side comparisons of how these filters work, we recommend What is IR Pollution and How Do You Combat it? for Hot Mirror IR ND filters, Straight NDs, and more.

However, there are some shortcomings. The VariND takes the polarizer and changes its effect. A VariND will stop doing what it normally does, which is to keep certain directional wavelengths of light from entering the lens and reduces glare or sheen from a face.

Speaking of track lights, the LED magnetic track lights that have been very popular recently are indispensable, but today, we mainly analyze conventional LED track lights. If you need to…

VariNDs are good when you don’t have a lot of time or working with shifting light and need quick versatility of control. Just like a circular polarizer (CP) filter for photographers out there, Tiffen VariND filters work by rotating one layer from the other.

Tiffen filters come in all forms, from straight NDs to glimmer glass and Infrared (IR) variants. Just like a painter has various paints and brushes for their canvas, a cinematographer needs a healthy variety of filters.

However, even though the color should remain neutral, there are NDs that experience color shifts that you can use to your advantage, like greens, cyans, and magentas. But even if you’re shooting in black and white, NDs are still useful for establishing more texture and achieve the same benefits as you would shooting in color.

Graduated NDs are darker on one side and lighter on the other and made available in 2 forms: Hard Edge NDs and Soft Edge NDs. The difference between the two is pretty simple: Soft Edge NDs provide a softer, gradual transition from translucent to dark, and Hard Edge NDs have a clear-cut, defined transition line.

Another useful feature of NATural NDs is how you can use them to ensure your cameras match, reducing extra time balancing color shifts in post-production.

But in some cases, such as Canon’s camera system, its optical low pass filter (OLPF) handles IR pollution well enough where you won’t require an IR ND. But with other cameras like RED Dragon and Blackmagic, you may need IR NDs on hand.

Tiffen IRND filters prevent Near-IR and Infra-Red light pollution while simultaneously maintaining the appearance of your darker areas. These filters are really effective in preserving color accuracy for most cameras.

This glowing effect is essential when painting with light and implementing more texture into your shot to avoid overly crisp, and daytime soap-looking images.

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Like its other filters, Tiffen’s NATural NDs are crafted with two pieces of durable Water White glass with the brand’s signature ColorCore® technology for lasting effect.

The Tiffen Water White Straight ND filters are designed with ‘Water White’ glass and constructed with ColorCore technology.

Most cameras with internal NDs are matched to the sensor with the appropriate OLPF and Color Matched NDs. So, you’ll need to be aware of cameras that don’t have internal NDs. Modern OLPFs for RED have improved in this area. There are a large number of IRND options out now, and it’s much more common.

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Differentiate between diffraction and refraction of waves. Diffraction involves the bending and spreading of waves around obstacles, while refraction is the ...

Downlighter: The structure of most SMD LED Downlights on the market is simpler than that of spotlights, with fewer components, mainly including radiators, outer rings, and PC covers. In addition to these, spotlights generally have reflectors or lenses. At the same time, the design of downlights is generally directional and cannot adjust the angle of light.

202174 — Depth of focus refers to the space between the lens and the image sensor where the image being filmed will appear in focus to the human eye.

When out shooting during a bright afternoon with the sun high in the sky, simply snap on your Water White NDs, optimized for digital sensors.

What is a Led Floodlight? LED floodlights can also be called Outdoor LED spotlights, or LED projectors, which are large-area lighting fixtures used outdoors. It has made technical improvements and…

The AL is strong in illumination and visually delicate. This makes it one of our most efficient Path Lights. It is tall and slender in form, making it ...

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In this article, we’re going to dig into the finer details of ND filters so you can make the best possible decision for your camera kit. With that in mind, let this serve as your guide to Cinematic ND Filters 2021.

However, what works for your style might not work for someone else. So, be sure to try and test different NDs with your camera setup, and review as many videos as possible.

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Variable NDs are easily adjustable and best for when you don’t have time to switch between filters. They’re comprised of 2 separate glass polarizers stacked together and with a scaled ring that you can rotate to modify the levels of intensity.  These“polas” limit light coming from a certain direction and when combined together they work to limit light from entering the lens.

When you’re just starting out as a cinematographer, understanding filters can seem a bit tricky. With all the different kinds of filters out there, it’s easy for filmmakers to slip up and use the wrong kind — or worse yet, fail to use one altogether. Especially when it could have enhanced your shot. Neutral Density filters (otherwise known as ND filters) are some of the most common filters and come available in all shapes and sizes, including both plastic and glass.

Take a look below for a list of our favorite ND filters that we’ve also reviewed! And if you need a little help finding the right filter for your lens, Tiffen offers an extremely helpful Camera Lens to Filter Chart!

In summary, spotlights are designed for focused and directional lighting, often used for highlighting specific objects or areas, while downlights are more suited for broad, uniform illumination of larger spaces. The choice between them depends on the intended lighting purpose and design objectives for a given space.

What is COB(Chip On Board)? COB light source means that the chip is directly bonded and packaged on the entire substrate, that is, N chips are integrated together on the…

Both in photography and cinematography, NDs are used to mitigate overexposure and image brightness. But, in photography, you can also adjust your shutter speed to make it shorter. What makes neutral density so important for cinema is how it controls the light separately from your camera and lens.