Kit lenses often come bundled with a new camera upon purchase, and usually range between 18mm and 55mm. Kit lenses are very much beginner lenses, providing a generous focal length and giving newbies the flexibility to figure out what works best for them. More often than not, they're cheaply built — we'd recommend moving away from kit lenses if you've bought a new camera for your project.

Yes, flashing lights or “floaters” in your vision can signify a stroke. Other symptoms include blurred vision, dark spots, and vision changes that worsen over time. Seek emergency medical attention.

Practically, prime lenses come into their own in controlled environments. Film shoots, interviews, and rehearsed, tight-knit video sets can benefit from prime lens usage, while they also come in handy for solo creators who're packing light.

Rectilinear lenses help keep straight lines straight. Most camera lenses are rectilinear to some extent, giving you the tools to set up realistic, well-composed shots. However, if you're filling the frame with tons of information and have a wide field of view, you could end up 'flattening' subjects.

Flashes of light in the eye are typically not a condition on their own. Instead, they tend to be a symptom of another condition.

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Regular eye exams can help your healthcare professional determine if there have been any changes to your vision or the health of your eyes.

Light flashes can happen in one or both of your eyes and have different shapes, colors, frequencies, and duration. There are many causes for this.

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Artistically, wide-angle lenses make subjects in the foreground look larger than they actually are, and any subjects further away look small. This can make for interesting portraits, but approach with caution — wide-angle lenses might enlarge the wrong features of a person, depending on which body part is closest to the camera.

Broadly speaking, any telephoto lens above 400mm is called a 'super-telephoto' lens. These camera lenses have the most acute attention-to-detail, able to render detail like the crags on the moon. They also come with a super-tele-oh-no price — some climb up to the region of $20,000 and higher. They're worth it, but they're not for beginners.

Using a macro lens allows for a shallower depth of field, softening your background and distinguishing it from your subject. Macro lenses will often fall into other categories, too. For example, you can pick up an ultra-wide-angle 14mm macro lens, or a 100mm telephoto macro.

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A posterior vitreous detachment occurs when the gel-like substance between the lens and retina in the eye shrinks and pulls away from the retina. This…

Retinal detachment is a medical emergency and requires immediate medical attention to prevent vision loss. If you have the following symptoms, get medical help right away:

In some cases, as with optic neuritis, treating the cause of the inflammation or infection can stop the light flashes. Tears in the retina or retinal detachment may require surgery.

A low focal length is more zoomed out, whereas a higher focal length is more zoomed in. You should be able to find the focal length written on any lens you pick up.

You can go the whole hog and get a prime telephoto lens, too. These run between 85mm and 800mm, resulting in even more flexibility when shooting — some specialty lenses go even higher than 800mm.

For example, a tilt-shift lens can straighten up a building's straight lines without relying on a rectilinear lens. You can play around with video editing software to correct these things after your shoot, but some creators prefer using tilt-shift because it saves time and gives them the freedom to choose.

Retinal tears or retinal detachment are often characterized by flashing lights, streaks of lightning, or stars in your line of sight. These flashes are often white or yellow and may be more noticeable in a dark room.

Tiny fibers float in the clear vitreous fluid; some are attached to the retina’s surface. When these fibers tug or pull on the retinal surface, it can cause flashes or light sparks from the friction.

Choosing the right lens for your camera can completely change the look of your content. Today, we'll rattle through the key things to look out for, plus the different camera lenses you can choose from.

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Standard zoom lenses sit between 24mm and 105mm. These offer more focal length variation, but aren't quite as speedy as, say, a 24–75mm zoom lens. While they're not perfect, a standard zoom can cover a lot of ground.

Because you should have the freedom to choose — everything from the lens to the mics, the special effects to the music. And if you need help on the music front, don't sweat it. Epidemic Sound's catalog of more than 50,000 tracks has got your back.

Sample variation is an issue that, unfortunately, can't be solved. If you've read a glowing review of a lens and decided to buy it, you'd expect said lens to live up to the hype.

Focal length is determined by the difference between the camera's sensor and the point at which light enters the lens — the latter property is often called the 'nodal point.'

'Standard' wide-angle lenses have a focal length between 35mm and 24mm. If you go down between 24mm and 18mm, it's just a wide-angle lens. Anything below 18mm is considered ultra-wide-angle, and would stray into fisheye territory — we'll cover that in a couple of minutes.

Another key stat to look for is a lens' maximum aperture. This can be found in the 'f/number' value, and in a nutshell, it's kind of like your camera's eye. The aperture is the pupil, growing and shrinking as it's exposed to more and less light. Maximum aperture is sometimes called 'f-stop.'

So, we've gone through those basics. Before we get into the camera lens guide, it's worth checking you've got all bases covered for your content. Budget, location, cast — but what about music? After all, the soundtrack can make or break your content. Leave nothing to chance and use Epidemic Sound's massive catalog.

Focal length and aperture are two key features to explore when choosing a lens, but it doesn't stop there. Quality-based quirks like sharpness, chromatic aberration, lens flare, and more are all valid things to consider. Click here for a short rundown of all things lens quality, and keep reading for our camera lens guide.

Eye floaters are spots in your vision. They’re often harmless, but can be a nuisance. Though they look like objects in front of your eyes, they’re…

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A ministroke occurs when part of the brain experiences a temporary lack of blood flow. Here's why that happens and how to identify the symptoms.

Telephoto lenses have longer focal lengths, resulting in a narrow field of view, low depth of field, and a magnified image. These lenses are popular in sports and wildlife photography, as they're able to capture the slightest of movements from long range.

The retina is a thin, light-sensitive tissue that lines the back of the inside of your eye. It transmits electrical signals to your brain via the optic nerve. The retina’s job is to process the focused light that comes in through your pupil and let your brain convert this information into a picture.

Blurry vision can be common after surgery, especially surgery that involves your eyes. But blurry vision may also happen after other types of surgery…

Wide-angle lenses do what they say on the can: they have a wider field of view. On the surface, this means you can fit more detail into your shots without cropping the important details.

The retina knows only one “language,” and that’s light. This means that anything stimulating the retina, including pushing or pulling on the retina, can lead to the transmission of a light impulse – even in a totally darkened room.

Need the difference between camera lenses explained? If you’re looking to make professional, movie-grade content, here’s all the info.

Flashes of light in your eye are typically a symptom of an issue related to your eyes or some other health condition. A comprehensive eye exam, including pupil dilation and retinal funduscopy, can help identify the reason for the flashes. The treatment will depend on the underlying cause

Photopsia is the presence of flashes of light or floaters in the vision. Phantom light flashes are usually caused by a preexisting condition such as…

Once you get the lens and it doesn't match your expectations, your initial reaction is probably: I've been conned! More likely, though, is that you've fallen foul of sample variation. All manufactured parts will vary, even if it's by a tiny degree. If your lens is noticeably poorer than you'd anticipated, it's best you get in touch with the retailer from whom you purchased‌ it.

A transient ischemic attack (TIA) or ministroke can cause sudden vision loss, blurred vision, double vision, and light sensitivity. These changes usually affect one eye only and are often painless. Seek immediate medical help.

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A wide variety of issues can cause flashes of light. Some may be related to your eye, and some may be a symptom of another type of condition, such as migraine, epilepsy, diabetes, or TIAs.

Flashes of light in the corner of your eye can be caused bt several conditions, some serious. SPeak with a doctor if you are seeing flashes.

Maximum aperture is written as a fraction. The lower the fraction, the more light will come through, and the larger a hole it'll burn in your wallet. Let's take a look at some examples:

A TIA can often be a warning sign of a stroke. That’s why it’s important not to ignore the signs. If you notice any of the following symptoms, get medical attention as soon as possible:

These lenses are often used when taking photos from great heights, to convey the scale of the world beneath. Fisheye lenses can also be employed to make your content more 'arty.' Filmmaker Yorgos Lanthimos is a huge fisheye fan, employing them to create a sense of unease and fantasy in his frames.

You'll mostly see wide-angle lenses used for dramatic landscape shots. One of the more famous examples is the Tatooine sunset in George Lucas' original Star Wars — that shot wouldn't land nearly as well without the wide-angle lens.

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Vision problems after a concussion are common and usually temporary. In many cases, they'll resolve within a few weeks. Learn more.

Maximum aperture is worth considering because it impacts your depth of field — combined with f-stop, it can make a huge difference to your work.

When you start digging, though, wide-angle lenses provide much more than just 'extra things in your frame.' Their larger depth of field gives your shots a crispness throughout, not sacrificing the foreground, middle ground, or background for ‌the others' sake.

Fisheye lenses swim against the current, inverting the view you get with rectilinear models. A fisheye shot is ultra-wide — also known as 'curvilinear' — and distorts the image, creating a stylized, panoramic picture.

A prime lens has a fixed focal length. Most of the lenses we discuss below can fall under the category of prime lens, provided they have that fixed focal length.

Have you noticed flashes or threads of light in the corners of your eye and wondered what’s going on? Flashes in your eye are a type of photopsia or vision disturbance.

Standard lenses are closest to how humans see real life: they have a large aperture and don't leave a lot of room for distortion. While they're not the artsiest of lenses, these puppies are great for documentary shoots, interviews, and the like.

Seeing flashing lights in your eye could indicate many different health conditions. Treatment will depend on the underlying cause, but you’ll definitely want to see an eye doctor as soon as possible.

It’s important to consult a healthcare professional anytime you experience a sudden, severe change in your vision. This is particularly true for visual disturbances that happen more than once or for an extended period.

When you consult a healthcare professional, be sure to go over all the medications you’re currently taking. Some medications can cause vision-related side effects.

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The vitreous humor is a clear jelly-like fluid that takes up a large part of the back of your eye. It protects the retina and helps your eye maintain its shape.

According to the American Academy of Ophthalmology, seeing flashes of light in the corner of your eye can be caused by many different factors or conditions.

Tilt-shift lenses are unusual, given they act as an on-camera, manual editing device. A tilt-shift lens lets photographers play around with perspective, distortion, and depth of field, all by tilting the lens. This alters the lens' relationship with the camera's sensor, resulting in the desired change.

Focal length is the most important thing to consider when choosing a camera lens. It's measured in millimeters, which are clearly noted numerically with 'mm' following the value. You can find this in your lens' specifications, and the number should also be printed on the front of the lens.

A healthcare professional can determine the cause of the light flashes based on the type, duration, and location of these visual disturbances.

Prime lenses used to be considered superior to zoom lenses, as professionals claimed that the former's fixed focal length provided more clarity. Nowadays, technological advances have almost closed that gap, although some people still prefer to use prime lenses.

Macro lenses allow extreme focus at close-range, meaning you can capture tiny details on plants, insects, jewelry, and more. They do this by creating a life-size, 1:1 image — you can also buy macro lenses that magnify at a scale of 2:1 or above, providing even more magnification.

Several types of eye-related conditions may cause light flashes to appear in the corner of your eye or field of vision. This includes:

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Zoom lenses are the other broad lens category, letting you tinker with the focal length. They're perfect for fast-paced shoots, as they allow for variation without having to carry and change multiple lenses while the action's happening. Zoom lenses' adaptive focal length means they can switch between something like wide-angle to telephoto — they're multi-purpose.