Learn the best ways to create amazing images and videos, share your works with the community and be inspired by our community.

If you are thinking of enrolling in film school, or trying your hand at filmmaking with your DSLR, Canon has released a series of videos, with tips and techniques from photographer and filmmaker Simeon Quarrie to help you get started. Here’s a look at the first three.

Is compressed air safe? Yes. Compressed air is clean, safe, simple, and efficient, as far as energy sources go. There are no dangerous exhaust fumes or other ...

Examples of telephoto and super telephoto zoom lenses (1) RF70-200mm f/4L IS USM (2) RF100-400mm f/5.6-8 IS USM (3) RF-S55-210mm f/5-7.1 IS STM

An already registered supplier can use a customized form to report the full list of offered photonics products. That form is reachable with a link at the bottom of the supplier's profile page.

What is colour depth? What difference does 8-bit, 10-bit, and 12-bit recording make to your video files? Read on to find out!

Free space communication uses line-of-sight technology to wirelessly transmit data for telecommunications and computer networking. It's a key technology for ...

Versatile with sharp edge-to-edge quality throughout the entire focal range, the RF24-105mm f/4L IS USM also provides surprising bokeh quality.

Thinking of supplementing your kit lens with something fast, compact and fun? Here’s why you should consider the RF50mm f/1.8 STM.

There are four types of zoom lenses. Wide-angle zoom lenses enable you to capture a wide area of the scene. Standard zoom lenses and superzoom lenses cover a wide range of focal lengths including telephoto ranges. Meanwhile, telephoto zoom lenses enable you to capture close-up images of faraway subjects.

Another way of categorising zoom lenses is by their maximum aperture, which is indicated in the lens name. If the maximum aperture changes as you zoom in, it’s a variable aperture zoom lens. If it stays the same throughout, it’s a constant aperture zoom lens.

Jan 22, 2009 — Freeview from either the plasma or recorder's tuners looks fine, but when changing inputs to Sky, you have a faint scrolling image of another ...

With its large f/1.8 aperture, wide and easy to handle angle of view, and relatively compact size, the RF24mm f/1.8 Macro IS STM promises a greater range of creative expression when photographing your everyday.

Need a wider lens to take in more of every scene? Check out the small, light, and affordable RF15-30mm f/4.5-6.3 IS STM .

A look at 7 key features on the RF135mm f/1.8L IS USM, Canon’s new 135mm lens for the RF mount and the first of its kind to feature image stabilisation.

Learn the best ways to create amazing images and videos, share your works with the community and be inspired by our community.

30 suppliers for ball lenses are listed in the RP Photonics Buyer's Guide, out of which 5 present their product descriptions. Both manufacturers and distributors can be registered.

Convex lens

As you zoom in, the shrinking maximum aperture reduces light entering the lens. You will have to use a slower shutter speed and/or higher ISO speed to maintain the same brightness. The bokeh intensity also changes.

Telephoto lenses let you fill the frame with a subject and create a creamy background blur, all with little distortion. Read on to learn more about them. (Reported by Tomoko Suzuki)

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Canon’s RF lens lineup just became more comprehensive with the addition of the RF400mm f/2.8L IS USM and RF600mm f/4L IS USM, which carry super telephoto focal lengths crucial for sports and wildlife photographers.

Hangzhou Shalom EO provides ball lenses and half ball lenses made from various substrate materials including sapphire, ruby, BK7, UV fused silica, high index glass, and germanium, ZnSe, ZnS with AR coating. Our ball lenses and half ball lenses are ideal for applications such as fiber communications, endoscopy and microscopy.

Infrared definition: the part of the invisible spectrum that is contiguous to the red end of the visible spectrum and that comprises electromagnetic ...

Jun 27, 2019 — Basically, the difference is that endoscopy can refer to a test that involves inserting the camera ... stomach and sometimes the duodenum.

The RF mount’s first true macro lens, the RF100mm f/2.8L Macro IS USM, is not only capable of more than life-size magnification, it also offers new functionalities such as a Spherical Aberration control ring.

If you’re a hybrid shooter intending to take your video production to a higher level, it’s time to consider getting a dedicated cinema camera like the EOS C70. Here are 6 things about them that you should know.

Which recording resolution should you select, and why does it matter? Read on to find out why they exist and what they are for.

A zoom lens is one of the most versatile types of lenses available. You can simply turn the zoom ring to change your framing. This makes them convenient, versatile, and easy for even beginners to use. It’s why kit lenses—the lenses that are sold in a set with new cameras—are usually zoom lenses.

Lens

Dec 29, 2023 — It's expressed in diopters and determines the basic power of eyeglass lenses. A spherical cornea is perfectly round, and a spherical lens ...

Also see: Prime Lens or Zoom Lens: Which Should I Buy? Camera Basics #1: Aperture Lens FAQ #6: My Zoom Lens Doesn’t Have a Very Bright Maximum Aperture. How Can I Get a Large Bokeh Out of It?

The new RF50mm f/1.2L USM is a standard prime lens that is capable of handling subjects in a wide variety of genres from portrait to street photography.

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Download scientific diagram | (a) The calculated group velocity dispersion (GVD) (solid curves) and mode confinement (short dashed curves) for the TE ...

The RF70-200mm f/2.8L IS USM fills in a missing piece in the RF lens lineup, completing it with a much-anticipated telephoto zoom lens. Here are 6 features that you need to know about this lens.

Small and light with beautiful image quality, the new RF-S18-45mm f/4.5-6.3 IS STM and RF-S18-150mm f/3.5-6.3 IS STM are designed to combine the technological and optical benefits of the RF mount with the size and portability of an APS-C system.

Available diameters are between 0.3 mm to 100 mm, with diameter tolerance (sphericity) <0.4 µm and surface roughness (Ra) <0.007 µm. Custom ball and half ball module options are also available on request.

What do you do when you see an interesting building from afar and want to frame it in different ways? Moving closer to the building might not be physically possible, and even if it were, you’d get a very different point of view standing right under it. A zoom lens helps you get wide shots and close ups from the same spot just by turning the zoom ring.

Weighing just 270g, the RF-S55-210mm f/5-7.1 IS STM is the ideal telephoto companion for those who want to keep their gear light.

Canon announced the launch of four new RF lenses for use with the newly developed RF mount — the core of Canon’s new EOS R System. The four lenses, built on the unique characteristics of the RF Series, comprised of Canon’s initial lens offering.

Zoom from 200mm to 800mm with the RF200-800mm f/6.3-9 IS USM, which provides an unprecedented focal range in one compact, lightweight body.

A zoom lens offers a lot of convenience and versatility. Let’s explore the different types of zoom lenses and some unique zoom lens characteristics.

Want to try something with more reach than what your standard zoom kit lens can provide? Consider the RF100-400mm f/5.6-8 IS USM, which is around the size of a typical 350ml tumbler.

From close-ups to breath-taking landscapes, the portable, versatile, and high-performing ultra-wide-angle RF14-35mm f/4L IS USM lets you capture nature from creative new angles.

Available diameters are between 0.3 mm to 100 mm, with diameter tolerance (sphericity) <0.4 µm and surface roughness (Ra) <0.007 µm. Custom ball and half ball module options are also available on request.

From close-ups of insects to stunning waterfalls and the sparkling Milky Way, the tiny and versatile RF24mm f/1.8 Macro IS STM is a great companion for exploring the outdoors.

Some aspects to consider before buying ball lenses: collimation accuracy, optical quality / surface finish, coating options, wavelength range, available sizes, compatibility with fiber optics, mounting and alignment options, size precision, durability.

As the diagram shows, maximum aperture aside, a 24-105mm standard zoom lens covers the same focal range as at least 6 different prime lenses.

Examples of wide-angle zoom lenses (1) RF14-35mm f/4L IS USM  (2) RF15-30mm f/4.5-6.3 IS STM (3) RF-S10-18mm f/4.5-6.3 IS STM

The new RF24-240mm f/4-6.3 IS USM is a compact, lightweight travel-friendly superzoom lens that has almost all scenes covered.

See the spectacular performance of the RF70-200mm f/2.8L IS USM in these images of the Japanese countryside during autumn leaf season.

Canon’s RF800mm f/5.6L IS USM and RF1200mm f/8L IS USM pack professional grade optics and build into smaller, more portable bodies, offering ultra-long reach with unprecedented mobility.

Increasing your lens collection to cover more focal lengths? Consider the compact RF70-200mm f/4L IS USM telephoto zoom lens, which will bring you one step closer to owning a zoom lens trinity.

Compares the RF50mm f/1.8 STM and EF50mm f/1.8 STM in terms of its external design, resolving power, bokeh quality, backlight performance, real world image stabilisation effect, and operability.

With up to 8 stops of image stabilisation through Coordinated Control IS, be amazed by what you can shoot handheld on this fast medium telephoto prime lens.

In the last 4 lessons of Simeon Quarrie’s series of video tutorials on filmmaking with the Canon EOS, we learn about choosing lenses, establishing focus, editing, and other tips and techniques on how to shoot better video.

The new RF600mm f/11 IS STM and RF800mm f/11 IS STM are set to make super telephoto photography more accessible than ever.

Shanghai Optics offers custom-made ball lenses. Please contact us for manufacturing limit or custom specifications. We can offer balls lenses e.g. with a diameter tolerance of ±50 μm, scratch & dig 20/10, surface quality 40-20, and with <50 μm deviation from a sphere.

Ball lenses are commonly used to improve signal quality in fiber coupling applications, or for use in endoscopy or bar code scanning applications. Our ball lenses feature short back focal lengths to minimize the distance needed from the ball lens to the optical fiber. Edmund Optics offers a variety of ball lenses in a range of substrates for performance in the ultraviolet to the NIR. Half-ball lenses are also available to ease mounting or system integration.

Knight Optical provides a wide range of ball and half ball lenses which are ideal for endoscopy and fibre communications. We have a variety of material options available including quartz, sapphire, cubic zirconia, ruby, BK7 and other optical glass, fused silica, borosilicate, and many more. Our stock catalogue consists of 0.4 mm to 10 mm diameter ball lenses, but custom dimensions are available up to 100 mm.

Sports portraits don’t necessarily have to be posed. Here’s how you can capture impressive, dramatic close-up portraits of an athlete in action—and make them look like studio shots.

Small and compact for the focal length that it offers, the RF100-400mm f/5.6-8 IS USM makes a good addition to the arsenal for photographers who want more reach.

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Shanghai Optics offers custom-made ball lenses. Please contact us for manufacturing limit or custom specifications. We can offer balls lenses e.g. with a diameter tolerance of ±50 μm, scratch & dig 20/10, surface quality 40-20, and with <50 μm deviation from a sphere.

For example, the RF24-105mm f/4-7.1 IS STM has a focal range of 24-105mm.  Its widest angle of view is at its 24mm “wide end”, and it zooms in to 105mm—the “tele” or “long” end.

A ball lens consists of a highly transparent spherical ball, usually made of solid glass (fused silica) or another optical material with index of refraction less than 2. Most ball lenses are made with small diameters – a few millimeters or even less than a millimeter. The optical physics can be understood by realizing these lenses are, equivalently, two plano-convex lenses separated by a parallel plane.

The RF14-35mm f/4L IS USM is Canon’s latest ultra-wide-angle zoom lens for the EOS R system, and it promises excellent portability even with its wider 14mm wide-angle end, together with the traditional L series image quality.

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The shrinking maximum aperture on variable aperture zoom lenses means less intense background bokeh at longer focal lengths compared to a constant aperture zoom lens.

Canon’s first L-series super telephoto zoom lens for the RF mount and two new extenders promise to make shooting distant subjects even more exciting.

Opticallenses

When using a lens on an APS-C sensor, the 1.6x crop factor applies. For example, the RF-S18-45mm f/4.5-6.3 IS STM, a popular kit lens for APS-C EOS R series cameras, achieves a field of view equivalent to approximately 29 to 72mm on a full-frame camera.

A ball lens consists of a highly transparent spherical ball, usually made of solid glass (fused silica) or another optical material with index of refraction less than 2. Most ball lenses are made with small diameters – a few millimeters or even less than a millimeter. The optical physics can be understood by realizing these lenses are, equivalently, two plano-convex lenses separated by a parallel plane.

CrystalBall

The EOS R system is Canon’s next evolution of EOS. At the heart of the EOS R system lies the 54mm large diameter RF mount. This revolutionary RF mount promises higher image quality – wider lens elements can be placed closer to the sensor, thus, reducing light refraction and aberrations.

Hangzhou Shalom EO provides ball lenses and half ball lenses made from various substrate materials including sapphire, ruby, BK7, UV fused silica, high index glass, and germanium, ZnSe, ZnS with AR coating. Our ball lenses and half ball lenses are ideal for applications such as fiber communications, endoscopy and microscopy.

The RF24-105mm f/2.8L IS USM Z is the perfect lens for both photography and videography with its focal length and large aperture.

How wide or zoomed in a zoom lens can go is reflected in the lens name and on the lens body. It is expressed in terms of focal lengths.

Knight Optical provides a wide range of ball and half ball lenses which are ideal for endoscopy and fibre communications. We have a variety of material options available including quartz, sapphire, cubic zirconia, ruby, BK7 and other optical glass, fused silica, borosilicate, and many more. Our stock catalogue consists of 0.4 mm to 10 mm diameter ball lenses, but custom dimensions are available up to 100 mm.

Our photographer fell in love with the excellent image quality and beautiful, creamy bokeh on this lens. See it for yourself.

Examples of standard zoom lenses (1) RF24-105mm f/4L IS USM (2) RF24-105mm f/4-7.1L IS STM (3) RF28-70mm f/2.8 IS STM (4) RF-S18-45mm f/4.5-6.3 IS STM (for APS-C cameras)

With their versatility and focal range, standard zoom and superzoom lenses are very popular lenses especially for beginners. Let’s find out more about their special features. (Reported by: Tomoko Suzuki)

Constant aperture zoom lenses are appealing because they allow the same amount of light to enter the lens even at longer focal lengths. However, they tend to be larger, heavier, and more expensive than similar variable aperture zoom lenses due to their more complex design.

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Ball lenses are lenses having the geometrical form of a ball (sphere), which may be rather small (microoptics). They are used as beam collimators for optical fibers, fiber-to-fiber coupling, and other applications requiring compact and precise optical components.

The RF24-105mm f/4-7.1 IS STM is a variable aperture zoom lens—you can tell because its aperture is stated as a range. It’s lighter and more portable than its constant aperture counterpart, the RF24-105mm f/4L IS USM, but the latter offers more flexibility.

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Ball lenses are commonly used to improve signal quality in fiber coupling applications, or for use in endoscopy or bar code scanning applications. Our ball lenses feature short back focal lengths to minimize the distance needed from the ball lens to the optical fiber. Edmund Optics offers a variety of ball lenses in a range of substrates for performance in the ultraviolet to the NIR. Half-ball lenses are also available to ease mounting or system integration.

On this particular variable aperture zoom lens, the maximum f-number at 105mm is f/7.1: 1 2/3  f-stops narrower than the constant aperture lens. Notice the difference in the bokeh.

Canon’s new RF85mm f/1.2L USM DS features the new Defocus Smoothing coating, which promises smoother, softer bokeh. Read on to find out more.

What camera settings should you use when shooting video? How do you avoid shaky footage? And how important is audio to a video, really? Here, we take you through the topics professional photographer and filmmaker Simeon Quarrie covered in parts 4 to 6 of his series of tutorials on filmmaking with a Canon EOS camera, which Canon recently released.

This is your best estimate of the focal length. Record your answer on your data sheet. light source lens screen. OBJECT. IMAGE optical bench.

This small, hand-held unit creates a beautiful universe of bright green laser stars from the palm of your hand.

Fast, ultra-wide-angle, and compact, the RF16mm f/2.8 STM is a great option for walkarounds, vlogging, and even close-ups of nature.

A unique lens that combines an ultra-wide-angle focal length with a compact, lightweight body, the RF16mm f/2.8 STM promises to inspire new perspectives.

Now that we understand the mathematics of polarizations, what is the physics? How do we actually produce polarized light? One way to polarize light is using a ...