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You have to specify 28mm equivalent. Telephoto lenses have a shallower depth of field than wide angles. From selecting the right lens, to getting those picture-perfect shots, read on to learn more about focal length and how it impacts photography. There are some bad third-party lenses floating around, just like there are some bad name-brand lenses. There are dozens of image quality factors that make some lenses better than others. And, should retailers be offering their own confirmation that your brand new expensive lens does indeed perform as advertised. Camera lenses come in all shapes and sizes and are designed for different shooting scenarios. Explore Lenses . Understanding camera lenses . Lenses with the fewest number of moving parts (i.e., internal focus and internal zoom) are generally ideal, since it allows for fewer points of failure. (I’ve got a full section later on each one and why it is so important.). What you need to do is take whatever "number" you see on the lenses and multiply it by 1.5X. From singlet, doublet, or triplet lens designs to achromatic, aspheric, cylinder, ball, or fresnel, we have thousands of choices for the UV, visible, or IR spectrum. If you’re not a Milky Way photographer, you probably don’t need to worry about corner sharpness at f/1.4.). This camera lens type has typically a higher maximum aperture, meaning many of these lenses won’t go below f/2.8 (creating less compression/bokeh). In general, third party lenses have a bit more potential for autofocus issues than name-brand lenses. If you intend to take pictures only to e-mail them to distant friends, upload them to sharing sites, or print them at snapshot size, a camera of most any resolution will do. Compact cameras and "add on" lenses. The angle of view of your camera lens is the area of the image captured by the image sensor, expressed as an angle horizontally. smaller sensor) will exhibit this effect the most. Camera lenses explained: Focal length. You might not notice lenses with good ergonomics, but you’ll certainly notice bad ones. For that reason, a 24-70mm f/2.8 zoom is going to be more expensive than a 24-70mm f/4 zoom in practically every case. Understanding camera lenses can help add more creative control to digital photography. Each company labels its lenses in a different way, with potentially dozens of abbreviations per manufacturer – too many to fit in this article. Then compare the images at 100% view, or one pixel in the image to one pixel on your screen. Are these ever worthwhile choices? It was once a very specific photographer in-group term, then Apple used it in a commercial, and now it’s pretty widespread. While at each distance – turn AF off and manual focus using your best technique. What Do the Numbers, Letter, & Symbols on a Camera Lens Mean? I don’t care about small differences, but a bad lens here will not end up in my bag. These are called “variable aperture” lenses. by David Peterson 6 comments. Understanding camera lenses: Zoom ring. This is the when you use a telephoto lens and things in the background of the image will appear larger and closer to the foreground. by Scott Karcich. Metal lenses may be more durable in certain situations, but generally there is nothing wrong with plastic lenses in this regard. Despite the intimidating name, chromatic aberration really does just mean “color problem.” It refers to color artifacts a lens introduces, like red and blue fringes in the corners of your image. With macro lenses, you have the advantage of zooming in on far, distant objects as well as the ability to closing in on subjects to capture the fine details. Megapixel Count Most photography software will have some tools to help minimize it, however. I’ll also mention the distinction between metal vs plastic lens construction. Although compromise can take many forms, it usually means lenses with lower image quality or a higher size/weight/price. I was hoping that someone might be able to put into simple terms what an "AL" Lens is ? Understanding Camera Lenses. Understanding Camera Lenses (Numbers, Letters & Symbols Explained) – Pretty Photoshop Actions By photoshopmama in Photoshop; What Do the Numbers, Letter, & Symbols on a Camera Lens Mean? Most of the time, the user has failed to evaluate the combo and make the correct AF Fine Tune adjustment. 3m 55s Animating a one-node camera . You may need to download version 2.0 now from the Chrome Web Store. As a photographer, a practical understanding of camera lenses is essential, whether choosing a new lens to purchase or simply picking the best option from your existing kit.Once you understand the attributes which make up a lens, you’ll be a step closer to achieving your vision, with the right tools. In much simpler terms, it's the measurement (in millimeters) of how long your lens is. However, on an APS-C camera, a 50mm lens might behave like a 75mm lens or an 80mm lens, depending on the size of the camera's sensor. Most lenses today are named in a relatively standard way: For example, the official name for one of Nikon’s professional zooms is the “Nikon AF-S 24-70mm f/2.8 E ED VR” lens. We also have full articles introducing wide angle lenses and telephotos. This term indicates that the camera and lens can communicate electronically to drive the focusing system inside the lens – and all EF lenses have their own focusing motors built into them. The limit of sharpness in your photos is very likely to be your technique, not your lens. Cloudflare Ray ID: 5fa7aeb8194b0843 Understanding Camera Lens Characteristics. We hate ads that move the text just as much as you do. For example, the “VR” term in the Nikon lens stands for “vibration reduction,” which stabilizes the lens for handheld shooting. The three main types of distortion are pincushion, barrel, and mustache. I’m willing to give up some image quality – as well as things like zoom range and maximum aperture – to get a lighter weight lens. There is a wide gamut of lens use for specific situations. I’ll note quickly that the sensor size of your camera contributes to the apparent focal length you’re using. What about the abbreviations at the end of the lens name? The other critical term in a lens name is the “f/number” term, which stands for the lens’s maximum aperture. While it’s a great lens to start experimenting with, the standard kit lens does have one slight drawback that you’ll find with many lenses. If you are new to photography, you might find yourself wondering what all of the different numbers, letters and symbols on your camera lens mean. This is simply the quality of a photo’s out-of-focus blur. (Milky Way photography is one exception. It doesn’t apply to every photo, but it’s a big deal when you’re working in a backlit environment. In this 9 part video series, you'll learn about lens basics and the various lenses available. There’s no great way around sample variation, aside from testing your lenses. Because the f-stop is a range and is not fixed, the depth of field is limited. If you can use your lens for several years in tricky conditions, it’s worth much more than a lens that can’t handle being bumped around. Performance & security by Cloudflare, Please complete the security check to access. Quality of a lens isn’t just a matter of the lens itself. This lens covers three specific focal lengths – 16mm, 18mm, and 21mm – but none of the focal lengths in between. On one hand, if a third-party company makes a lens that your camera company does not, it obviously is worth considering. These lenses are sometimes called converter lenses. A camera lens is a combination of different types of glasses (Concave, Convex, Concavo-convex, etc), arranged in different groups to give the sharpness of content across the image. The answer goes beyond simple things like sharpness and image quality. You are right, that is very annoying. Many are arrogant and assume flaws are an issue of a faulty lens, or camera. You can use EF lenses on all Canon EOS DSLR bodies, and you can also use these on Canon’s range EOS M series of mirrorless cameras via the EF-EOS M adapter. In a film camera, the lens sends the light to the film strip, while in a digital camera (like DSLRs or mirrorless cameras), the lens directs light to a digital sensor.Camera lenses are made up of a series of glass plates that are convex (curved outward) or concave (curved inward). Anything wider than 18mm and longer than 300mm is generally considered an ultra-wide or a super-telephoto. They still matter, denoting the extra features offered by each lens. All of these are rough figures, though. Aperture is generally measured by F-Stop. Many photographers don’t realize that aperture is written as a fraction. And while I know they are somewhat subjective, some space should be given to weight and size. Minimum aperture isn’t nearly as important as maximum aperture, though. It would be very frustrating to read a good review of a lens online and find that yours isn’t nearly as impressive. If you shoot at 18mm, you can use an aperture as wide as f/3.5. I added a section on lens construction. They also do not always have immediate compatibility with new cameras, or camera firmware updates (although their manufacturers usually release compatibility as soon as possible). However, they do sell add-on lenses that can give your camera wide-angle, telephoto or macro abilities. Understanding Camera Lenses. Basics Understanding Camera Lenses: A Beginners Guide. Understanding Camera Lenses. Intermediate "One of the many revelations that photographers have is discovering the difference between letting your camera decide how to do something, and telling your camera what to do." Was this content useful to you? The figure below gives a pictorial representation of the inside the lens. Understanding Camera Lenses. It is quite an important specification. It is not a measurement of the actual length of a lens, but a calculation of an optical distance from the point where light rays converge to form a sharp image of an object to the digital sensor or 35mm film at the focal plane in the camera. Both, and a Penticon 50mm, and use a wide-angle or skimp on lenses the zoom isn t! A “ bulge ” or “ pinch ” to straight lines in photo. Can vary anywhere from f/1.0 to f/22 depending on the subject use Privacy pass macro abilities in focal length the. You 'll learn about lens basics and the various lenses available lenses another –... Is worth considering lens covers three specific focal lengths this effect the most inexpensive starter lenses available field lens camera! Most people don ’ t realize that aperture is hardly the worst compromise out there the quality a. More expensive than constant aperture zooms, especially at a couple of different distances you could argue the. 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