The intensity I of polarized light after passing through a polarizing filter is I = Io cos2 θ , where Io is the original intensity and θ is the angle between ...

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Why not check out our other photography picks:It's important that your other kit matches up to your competent new ring light. Make sure you read our guide to the best cameras if you're thinking about upgrading kit. Already know which side you're taking in the mirrorless vs DSLR debate? You'll want to read our picks of the best DSLR cameras or best mirrorless cameras. On a tight budget? Make sure to read our picks of the best cheap cameras. You need to be a dab hand in the edit suite these days for your photos to stand out online, so make sure you read our guides to the best photo editing software and best photo editing apps. The same goes for video too, so consider finding out what we think is the best video editing software, best free video editing software and best video editing apps. Finally, all those photos and videos are going to need to go somewhere, so make sure you know all about the best photo storage sites if your drives are already nearing full.

That really depends on what you're shooting. If you want to produce a lot of content where your face is the main event, then a ring light is best. If you want the characteristic halo reflection in your eye, which is extremely common in beauty and fashion content, then there really is no substitute for a ring light. If you're filming content in your home or bedroom and won't be going anywhere else, a ring light is also perfect.

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Ring lights are exactly what they say: rings of light. This has a few key benefits over traditional photography or video lighting. The ring casts an even light around your whole face, while also giving you a ring-shaped reflection in your eye. Because the light is a ring, you also have space to put a camera in the middle, and indeed many of the best ring lights will have mounts for a camera or phone in the center.

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This portable LED kit also comes with a 61-inch light stand, constructed from aluminum alloy, giving it exceptional strength. It also has a 360-degree rotatable smartphone holder, plus a Bluetooth receiver for controlling your ring light remotely. Oh, and it even comes with a handy carrying bag.

That all depends on what they need to shoot. Ring lights are entirely feasible tools for professional photographers, especially those shooting close up beauty photos of their subjects' faces. Light is light, and ring lights work wonders for lighting up faces.

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Although the RP19H is cheaper than the Neewer RP18B, it doesn’t feature Bluetooth connectivity or a wide temperature range like the more expensive model, so we think you should spend a little extra on the RP18B if you can. This ring light does feature decent build quality, however, and comes with a metal light stand (again this is not as sturdy as the stand that comes with the more expensive RP18B).

The RP19H is the ring light to get if you shoot on a smartphone, especially if you need to shoot on more than one device simultaneously, as it has three cold shoe mounts. This means you can mount three smartphones or cameras for shots at different angles. This feels like a bit of a gimmick, as the space between the mounts is small, meaning the angles won’t be hugely different. Using three smartphones or cameras might be useful if there are a group of you in shot, though, as you can all record the same content on your own devices. You could use the cold shoes to mount an extra accessory like a microphone, though.

On the light itself, there are two knob controls to adjust the color temperature (3000K to 6000K) and brightness of the light. It comes with a power supply, but no batteries, which makes this more suited for studio or home scenarios. It also comes with a built-in USB port to keep your smartphone charged. A nice extra on this ring light is that it lets you rotate the light head 180 degrees horizontally. The included tripod stand, meanwhile, can extend up to 78 inches.

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SizeAdditionally, consider the size of the light: some are quite small and portable, which means you can take them on the road with you; others are larger and heavier, which may weigh you down.

It runs on the included AC power adapter or, when you’re far from a power outlet, on the two included NP-F750 lithium-ion batteries. While the Neewer RP18B Pro can run on batteries, that light doesn't come with them included, meaning the Wescott is the better of the two for portability straight out of the box. The included batteries provide up to 70 minutes at full power, according to the manufacturer. It’s also fully dimmable and equipped with an adjustable color temperature ranging from 3200K to 5600K — this is a much narrower range than the Neewer RP18B Pro.

We absolutely loved the Neewer RGB62 in testing. This compact portable RGB LED is super affordable at $26 and, as an RGB light, isn’t limited to only yellow or white like many ring lights (although it does have a bi-color mode with a very wide 2500K-8500K temperature range). It comes with a diffuser to soften the light and has an internal battery so you don’t need to plug it in. It also features four cold shoe mounts to give a wide variety of mounting options — you can mount this panel on top of your camera, then mount 3 more accessories to the light itself, or you can daisy chain several of these lights to make a more powerful lighting setup. You can also control it with the Neewer app which allows you to fully control the lighting, as well as assigning a range of effects, such as music synchronization. It also comes with a magnetic back, so you can simply clip it to anything metal without the need for a light stand.

If you’re looking for a versatile ring light kit that has a professional build quality and provides you with lots of features and options, the Westcott 18-inch Bi-Color LED Ring Light Kit with Batteries and Stand will fit the bill. Westcott has a long history producing top-notch lighting equipment for pros, and is an excellent choice, whether you’re using it for vlogging, live streaming, capturing video or shooting still photos for portraits, food, still life and many other types of genres.

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However, they doesn't mean ring lights are worth it for everyone. If you're producing video on a larger set or outside, you may want to consider a continuous studio LED instead.

Like Westcott and Nanlite, Godox has a good reputation for making quality lighting products. The LR150 is no exception, which is why it makes our list of the best ring lights.

There are several mounting options, including a tripod ball head, which lets you use a DSLR or mirrorless camera. Plus, you have the ability to mount up to five phones at the same time on this model. And as a nice extra, the back of the light comes in two colors — pink and black.

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The point of a ring light is not to light up larger video sets, so if you're going to be shooting wider shots or you need a versatile light, take a look at the ring light alternatives we've listed above.

You'll need one of the best ring lights if you're looking to improve the look and feel of your online content or video calls. If you're a vlogger or influencer, particularly a fashion or beauty creator, then a ring light is an absolute must.

As you might expect from its name, the Rotolight Ultimate Vlogging Kit is designed for content creators making videos or streaming to YouTube, TikTok and Instagram. With that in mind, it comes with a mini tripod that can turn into an extended camera grip: very helpful if you often switch between shooting in a studio and on the go.

You get lots of options with this model: it can be used with a phone or nearly any type of stand-alone camera, since the kit comes with two cold-shoe mounts and a 1⁄4-inch-20 mounting option.

Ring lights are perfect for vlogging, especially if you're producing beauty content, as they light your face evenly and also give you that telltale ring reflection in your eye. However, they also have downsides: they can be expensive, while they're also relatively inflexible as they're designed primarily for lighting faces. If you want to do more types of content, a ring light alternative might be best for you.

All this means that, even though they can cost a little bit of money, a solid ring light will more than justify its price in terms of features and results.

We've got a separate list of the best ring lights for phones if you're specifically interested in phone-centric lights, but if you're taking vlogging seriously, you'll want something that is compatible with a camera for when you start to step up your content with one of the best mirrorless cameras.

However, chances are you're not a pro, or you wouldn't be asking. Just because professionals may use other lighting setups, that doesn't mean a ring light isn't what you need. If you're producing beauty content or simply need to light your face better for video calls or selfies, ring lights are a great, affordable solution that require very little technical knowledge to set up and operate.

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The downsides? The onboard controls can take a bit of working out, especially if you’re new to lighting. And while it’s powerful for its size, I’m not sure it’ll function well as a main light if your trying to shoot higher end content for socials or YouTube (unless you daisy chain two or three of them together with the cold show mounts). Still, on its own, a single RGB62 should be more than enough for video calls and would serve as a great secondary light to cast shades of color into the background of your frame.

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Firstly, you'll want to consider whether you want a ring light or a different type of light. Ring lights are the best for vlogging or beauty content, as they're primarily aimed at lighting faces. If you are doing lots of different types of video, one of the best ring light alternatives above might be the better choice for you.

Many of the best ring lights also offer handy features, such as light temperature controls to allow you to set a warmer or cooler tone; Bluetooth hookup and camera or smartphone mounts.

I know, it sounds kinda obvious: a ring light is there to light you up! But it isn't that straightforward. Ring lights have a very specific purpose and aren't ideal for every situation. The main purpose of a ring light is to light up faces. Instead of just lighting up one side of your face, when used properly they will light up your entire face evenly. This makes them perfect for content where your face is the main part of the frame. So mid-range to close-up shots. This will naturally suit anyone vlogging to camera, or producing fashion or beauty content.

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Here are the best ring lights you can buy today, split into a variety of helpful categories to help you find the best ring light for you. Whether you need a ring light for your smartphone, for professional use, or if you're on a budget, there's an option for you here.

The ring light itself is decent, rather than class-leading: color temperature is fixed unless you use filters and there's no way to adjust the brightness. But if you're looking for something small, portable and well priced, this could be the right ring light for your phone.

Use casesThink about how you want to use the ring light. Are you just capturing casual photos on your phone? Then, you won’t need to spend a lot of money. But what if you are producing a weekly video podcast or episode for your YouTube channel? Then, you’ll want to pay more for a ring light that gives you more options.

FeaturesDo you need a ring that lets you adjust the light’s color temperature or brightness? Or do you need the option of powering the ring light either by an AC adapter or using batteries?

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As mentioned above, though, if you're going to be filming lots of different shots and angles, or you need a versatile light that that illuminate various set layouts, then you need a more complex lighting set up. Check out our list of the best ring light alternatives above.

202315 — Infrared light consists of wavelengths longer than those found in light that is visible to the human eye. Because this light is invisible to the ...

Many professional photographers, however, will choose to use more versatile lighting. Pros will know how to get just as fantastic results from other lighting setups, and will tend to choose studio lamps or flash guns with softboxes instead of a ring light. These are more versatile, meaning a pro can use a single lamp in a variety of setups, instead of just lighting faces.

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Terry Sullivan is an experienced technology journalist who has covered consumer electronics including cameras, smartphones, audio tech and software among many other things. His work has appeared in the likes of Consumer Reports, PCMag, Lifehacker, and the New York Times and he is also a teacher, photographer, artist, and musician.

If you're a content creator, shooting video to camera, ring lights are definitely worth it! They're an affordable way to light your video professionally, and to cast an even light on your face.

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Coming in at well under $100, this is the best budget full-size ring light you can buy. You can find cheaper lights, but they're smaller and better for smartphone use. If you want a full sized ring light, this is as cheap as we'd recommend going (as Godox is still a great brand with a strong reputation in the photography industry).

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If you want to take your lighting to the next level, or you want to shoot more than just to-camera or vlogging content, you might well be better off investing in a proper video light. Look no further than the Neewer MS60C. This portable video LED is super powerful and will allow you to craft professional-looking sets. It’s RGB, so you aren’t limited to just yellow or white, can run off either mains or battery power, and comes with a handle for handheld usage, making it a very flexible and portable tool. It’s also pretty small for a studio light, as it doesn’t need an internal fan. As with other Neewer products, you can control the MS60C fully via Bluetooth through the Neewer app.

The Wescott 18-inch ring light does have one advantage in that it comes with NP750 batteries to run away from mains sockets. And while the RP18B Pro is cheaper than the Wescott, buying Neewer’s battery plate plus two NP750 or compatible batteries will take your total spend higher. That said, most people will be using a ring light in a home studio set up where mains power is reachable, so we don’t think this is a deal breaker, especially as the RP18B Pro offers better features all round. One slight gripe we had is that the screw handles for securing the ring light to its frame are made out of cheap feeling plastic, although the rest of the light and the tripod all feel very sturdy.

If you do want a ring light, with so many available at so many different price points, how do you choose which model is right for you?

This 18-inch Neewer ring light has a fixed color temperature of 5500K, which matches a daylight-balanced light source. However, it also includes two color filters (white and orange), made from high-light-transmission plastic, which allow you to easily switch temperature from 5500K to 3200K. There's also a stepless dimming knob, which lets you adjust the brightness.

This ring light has user-friendly controls and a hassle-free setup, and it claims to have high color accuracy. It also has a built-in diffuser which produces soft, beautiful lighting that fills in shadows on your subject's face with iconic catchlights in the eyes.

As a studio light, however, the MS60C is expensive, so if you’re on a tight budget one of the ring lights above will be better suited. This light is aimed more towards burgeoning enthusiasts and serious content creators. It also won’t give you the trademark ring in your eye that you’ll find with actual ring lights, so if you’re shooting beauty content and want the ring light “look” this won’t be for you. Annoyingly, it doesn’t come with a stand or batteries, either, both of which are expensive.

We think the Neewer RP18B Pro is the best ring light you can buy. It’s more affordable than the Wescott 18-inch ring light below, while also offering a wider adjustment range of 2700-7000K, Bluetooth connectivity for lighting adjustment and FX options via the Neewer app, plus a sturdy metal stand which features a heavy duty metal locking cuff mechanism. There’s also a mobile phone holder included so you can place your phone in the centre of the ring light. It also comes with a ¼” thread ball joint adapter instead of the mobile phone holder so you can use this ring light with one of the best cameras for vlogging. The RP18B Pro also comes with a carrying case that features a near light stand compartment so you can keep everything organized on the move.

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202541 — Visible light is but one example of a much broader set of phenomena—an electromagnetic spectrum with no theoretical upper or lower limit to ...