focal length是什么

Hot Tags : N-BK7 Plano Convex Circular Cylindrical Lenses Schott Plano Convex Circular Cylindrical Lenses Plano Convex Circular Cylindrical Lenses For Medical Application Plano Convex Circular Cylindrical Lenses For Laser Application Borofloat Glass Plano Convex Circular Cylindrical Lenses High Precision Plano Convex Circular Cylindrical Lenses With Customized Coating

For this reason, wide angles are perfect for photographing landscapes, as you can capture more of the scenery and create a much more vivid picture. They are also great for photographing architecture, as you’ll be able to capture the whole building in front of you.

And knowing when to use the correct lens, is just one step towards becoming a much better photographer. In this article, we take a look at the different types of camera lenses and when they should be used.

Camera lensdistance chart

If a standard zoom lens isn’t quite strong enough for your needs, then the next step up is a telephoto lens. These big lenses are found within a range of 100mm up to 600mm, sometimes even more.

CameraSize comparison withlens

photoGuard is a trading style of Thistle Insurance Services Limited. Thistle Insurance Services Limited is authorised and regulated by the Financial Conduct Authority. FRN 310419. Registered in England under No. 00338645. Registered office: Rossington's Business Park, West Carr Road, Retford, Nottinghamshire, DN22 7SW. Thistle Insurance Limited is part of the PIB Group.

One important point to note though is that some lenses are designed for different camera bodies, so always check before making a purchase. DSLR and Mirrorless cameras are either full-frame or crop sensors. While full-frame lenses can be used on a crop sensor, a lens designed for a crop sensor can’t be used on a full frame!

If you’re travelling light, though, you can find zoom lenses with much more range, such as an 18 - 270 mm, allowing you to photograph both close up and in the distance.

A cylindrical lens is a lens that focuses light on a line instead of a point, like a spherical lens. The curved face or faces of a cylindrical lens are sections of a cylinder, and focus the image passing through it into a line parallel to the intersection of the surface of the lens and a plane tangent to it. The lens compresses the image in the direction perpendicular to this line and leaves it unaltered in the direction parallel to it (in the tangent plane). In a light sheet microscope, a cylindrical lens is placed in front of the illumination objective to create the light sheet used for imaging. Cylindrical lenses focus or expand light in one axis only. They can be used to focus light into a thin line in optical metrology, laser scanning, spectroscopic, laser diode, acousto-optic, and optical processor applications. They can also be used to expand the output of a laser diode into a symmetrical beam. Cylindrical lenses are widely used in telecom applications like WSS, 40G/100G modules and laser applications like pump laser modules

focal length中文

Because of this, prime lenses produce much higher quality images than a zoom lens in general, but you will need to know in which situation you can use them. For example, the 50mm prime lens, otherwise known as the Nifty Fifty, is perfect for portraits, as the focal length is seen to be as close to the human eye as possible.

Telephoto lenses are bulky and may require a tripod to support them, making them nowhere near as practical as a standard zoom lens.

A prime lens is a classic style that has been around as long as cameras have. Prime lenses have a fixed focal range, which means that you can't zoom in or out.

Wide-angle lenses are a must-have if you’re a landscape photographer and looking to step up your game. Wide angles have a wider focal field, allowing you to essentially capture more of the scene in front of you than say a zoom lens.

Camera lens mmchart

If you are a professional wildlife photographer, sports photographer, or if you photograph the night sky and the stars, then a telephoto lens can be invaluable. For amateurs though, it’s perhaps not within your budget.

A fisheye lens is basically an ultra-wide-angle lens, offering an enormous field of view. These are more specialist lenses and aren’t generally needed by most photographers. They are useful if you are photographing indoors or using your camera for design work. An ultra-wide-angle lens can have a focal length as low as 8mm.

CameraFOV calculator

Zoom lenses are one of the most common types of lens that you’ll need in your photography armoury, offering you a great range for photographing anything from people in the streets to wildlife in the African Savanna.

In this article, when we talk about lenses we will be referring to the detachable lenses that are used by photographers. The same principles apply across different brands, be it Sony or Nikon, and across different types of camera body, be it DSLR or Mirrorless.

It can be quite overwhelming in the early stages of getting into photography when you find out just how many types of camera lens there are. Fortunately, camera lenses can be broken down into two types, zoom lenses and prime lenses. We’ll explain what the definition of these two camera lenses are below.

Hot Tags : Large Size Plano Concave Cylindrical Lens Custom Cylindrical Lenses Plano-Concave Round Cylindrical Lenses Custom Plano Concave Cylindrical Lens Plano-Concave Round Cylindrical Lenses For Medical Application BK7 Cylindrical Plano Concave Lens

For budding photographers or anyone needing to photograph in a diverse range of scenarios or conditions, there’s nothing that can really beat a good zoom range for quality and adaptability. It’s the all-round lens that everyone needs!

Focal lengthcamera

Hot Tags : Fused Silica Quartz Optical Cylindrical Plano Concave Lens Optical Glass BK7 Large Diameter Plano Concave CylindricaMirror Lens

If you need to capture an even wider field of view, then you’ll need to invest in a fisheye lens. These create the unusual 'fisheye’ effect, similar to a GoPro image.

In conclusion, there are different types of camera lens for almost any situation you could find yourself in as a photographer. Knowing which lens is best for what scenario, will set you on your way to becoming a much-improved photographer.

What is focal length oflens

The main advantage of prime lenses is that they specialise in just one focal length. In other words, they are finely tuned to deliver on one specific type of photography, unlike a zoom lens which can be used in a multitude of cases.

Hot Tags : AR Coated BK7 Pcx Rectangular Lens K9 Glass Plano Convex Rectangular Cylindrical Cylinder Lens Rectangular Plano Convex Lens Cylinder Lenses For Laser Application Rectangular & Circular Plano-Concave Lens Plano-Convex Cylinder Lenses

Even the experienced photographer will be hard-pressed to explain the exact differences and function of each particular lens, but knowing more about the functionality, focal lengths and uses of a lens can help you to employ it in the right situation.

Zoom lenses are incredibly versatile, with the most popular being the 70-200 mm lens that you’ll see being used by wedding photographers. Zoom lenses have variable focal lengths, so with a 70-200mm lens for example, you can zoom from 70mm all the way up to 200mm.