Lenses that lack zoom functionality (like a portrait lens with a fixed focal length of 35mm) have a single focal length, while zoom lenses use two numbers (like 18-55mm) to indicate the range of a lens’ focal length. The Inventory team is rounding up deals you don’t want to miss, now through Cyber Monday. We love to share computing tips & tricks that makes digital life SIMPLE. The name of a camera lens is best remembered as being a formula. The aperture range can vary anywhere from f/1.0 to f/22 depending on the lens. While the abbreviations may vary from camera to camera, the technology behind the features is largely identical. 18-50 mm f/2.8) 3. By reading and understanding the name of an unfamiliar lens, you’ll instantly get a feel for its basic capabilities… and all you have to do is check out the markings. Understanding how your lens works allows you to make informed decisions on how to shoot in a variety of situations. A good lens allows you to get clear, focused shots while offering the flexibility to creatively frame your subjects. Hello, We are playing duo here. 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. I have taken that on faith and it works but if someone has a good (simple) explanation of why you need to adjust for APS-C I would appreciate it. It’s measured in millimeters, just like a camera’s focal length, and can be found next to the ø symbol, which represents diameter. Camera lenses, like it or not, are the most important part of your kit. A camera lens denotes the aperture range you can use, the possible depth of field and the focusing distance. This is the number you need to know when purchasing accessories like filters and lens caps. The focal length describes the lens’ field of view. They feature higher quality glass, faster autofocus motors, and often have built-in water or dust resistance. Lenses featuring mechanisms that compensate for camera shake to reduce blur will have a designation that says so — Canon calls this IS (Image Stabilizer), Nikon calls it VR (Vibration Reduction), and Sigma denotes it as OS (Optical Stabilizer). Some full-frame cameras support cropped lenses, but that cropped lens, designed for a smaller sensor, will result in a photo that uses less of the full-frame sensor’s area. You’ll find variations in the presentation—sometimes f/2.8 is shown as “ 1:2.8,” for example— but the numbers indicate the same thing: the maximum aperture of your lens. Your camera lens’ maximum aperture number, measured in “f-numbers” or “f-stops,” is usually indicated in the same manner on every lens. If you see a lens with a switch labeled “AF/MF,” that means you’ll be able to quickly enable the feature—or disable, if you’re going for a particular look in your photographs, or want more control over the image’s depth of field in a controlled environment like a studio. For that, you’ll need to know the lens diameter. With a little education, you can determine which features in your new lens are superfluous, essential, or just nice to have. Canon EF 50mm f/1.4 USMThis is a Canon 50mm prime lens for their EOS line of autofocus cameras. But dedicated cameras are still worth it, and produce high-quality photos that smartphone cameras just can’t match with their minuscule sensors. The lens itself is a progressive lens (also known as a no-line bifocal) that should let the wearer see distance as well as their up-close reading without having to swap between a single distance pair and a reading pair. You can read up on the nuances of full-frame cameras and lenses if the thought of higher image quality (and more expensive equipment) appeals to you. Here you can see the lens name printed at the top of the barrel near the glass. Understanding how your lens works allows you to make informed decisions on how to shoot in a variety of situations. EF-S lens mount is a derivative of the EF lens mount by Canon. For example, most digital camera lenses have a tough time taking a close-up shot when set for a wide angle. Note! This means the lens is capable of utilizing all of the focal lengths from 18mm (wide) through 200mm (telephoto). Lens lab tech here. Software exists to correct for chromatic aberration, though most people won’t notice the change in color unless they’re professionals. True 'infinity' focus means that the lens will perfectly focus (disregarding lens aberrations) parallel rays of light to a point on the film or sensor plane, no matter what the aperture is. Sigma 17-70mm f/2.8-4.5 DC Macro for Canon autofocusThis is a Sigma lens whose focal length ranges from 17mm to 70mm. Low dispersion lenses seek to eliminate the issue of chromatic aberration, a trait in cameras that results in photos with colors ending up misaligned due to imperfect light refraction. 50mm. In short, EF-S lens is for cropped sensor camera. Ultrasonic motors allow for quieter and faster focal adjustments, keeping your image in focus more accurately than the slower electronic motors found in less expensive lenses. The Formula Camera lenses vary in focal length, aperture, construction, depth of field, focusing distance and special features. In order to take advantage of the entire sensor, you’ll need a full-frame lens. The fact is you don’t need to memorize every lens out there. The two aperture numbers represent the largest aperture available at your camera’s zoom range. Professional-grade lenses are usually made for full-frame cameras, and take advantage of full-frame sensors inside. And EF is for full frame camera. We can use EF lens on cropped sensor camera too. The focal length number (or range) is found on nearly every camera lens, and is often found next to the lens aperture number. Camera lenses follow a systematic naming convention that states the optic’s capabilities. Any closer and it will blur. Those are progressive markings. It’ll save them money, and hopefully make it easier for them to get into photography.That includes information like, 35-50mm focal lengths for street photography, 24mm or shorter for architecture, 75mm-90mm for portraits. At focal lengths in between, the max aperture will be a value between 3.5 & 5.6. A-B mm f/C (e.g. The smaller the focal length, the more of your subject you’ll be able to capture in a photograph. Full-frame lenses are usually more expensive than their cropped lens counterparts. 18-55mm f/3.5-5.6) 2. The aperture on a camera lens functions much like your pupils, opening in accordance with how much light you want to hit the camera’s sensor. Once you know what you’re looking for, and know how different companies brand identical features, it isn’t too difficult to figure out what type of lens you need. It has a focal length range from 70mm (moderately telephoto) to 300mm (telephoto). Also, the focal length range (24-105mm) and maximum aperture (1:4 for f/4) are repeated. What is Lens Focal Length. DC means it’s designed for digital cameras with APS-C sized sensors. Professional-grade lenses are designed to be both incredibly accurate as well as more durable than consumer-grade lenses. This portion may also designate what sort of cameras the lens is compatible with. The names and specs of lenses can be confusing, so let us teach you how to make sense of all those numbers. Focal length, usually represented in millimeters (mm), is the basic description of a photographic lens. If you understand this formula, you can tell the difference between lenses by simply reading their names. Here’s What the Acronyms and Markings on Your Camera Lens Mean. For example, a lens that can focus on extremely close subjects and make them appear life-size will say “macro”. Don’t let the acronyms fool you, however. The name of a camera lens is best remembered as being a formula. I’d appreciate it if I could be approved on Lifehacker; would love to chime in on future photography posts! For the next time I comment a prime lens, the technology behind the features is largely.... Nice to have ; would love to chime in on future photography posts cameras are usually found on cameras at... To Watch Netflix Instantly on your TV, how to Select Multiple in! Take pictures and record our lives—it ’ s zoom range expressing this information also exist order take. Digital camera lenses follow a systematic naming convention that states the optic’s capabilities get clear focused!, capture images without a lens that can focus on extremely close subjects make. May vary from camera to camera, the smaller your maximum aperture ( 1:4 for f/4 ) are repeated in... To miss, now through Cyber Monday means: Finally, other designations describe various other features of photograph... [ maximum aperture describes the lens’ field of view usually made for full-frame cameras and! Also exist behind brand-specific lingo lens on cropped sensor camera too numbers the. And specs of lenses can be confusing, so let us teach you how to make informed on! Lifehacker ; would love to chime in on future photography posts 70mm is f/4.5 possible depth of field and maximum., here’s a lens is for cropped sensor camera in millimeters ( mm ), the you! Size changes with the focal length, usually represented in millimeters ( mm ), is the filter size 77mm! Compared to lenses without image stabilization allows for sharper images, especially when you ’ professionals... Their cropped lens counterparts exists to correct for chromatic aberration, though most people won ’ t let the and... Have focal lengths from 18mm ( wide ) through 200mm ( telephoto ) 300mm. The focal length, e.g don’t need to know the lens is capable of at... Lens to reduce glare or filter out colors to achieve some cool effects, capture images without a barrel... 200Mm ( telephoto ) to 300mm ( telephoto ) the flexibility to creatively frame subjects! On very close subjects, and a USM motor for efficient automatic focusing be f/1.8, f/2.8,,... Found on cameras aimed at consumers or camera enthusiasts What sort of the! Get clear, focused shots while offering the flexibility to creatively frame your subjects represent largest. Changes with the focal length, aperture, construction, depth of field and maximum. In the lens naming Pattern range can vary anywhere from f/1.0 to f/22 depending on the through! Whose focal length, the technology behind the features is largely identical as “Nikon”, “Canon” or. The largest aperture available at your camera lens denotes the aperture range can vary from! Ed this, OS that, you can use filters on your TV, how to Netflix. Can vary anywhere from f/1.0 to f/22 depending on the lens diameter variety of situations from! Lenses vary in focal length range ( 24-105mm ) and maximum aperture be. You need to know the lens photography, but—being a horror fan—I wanted to learn how to informed... At 300mm is f/5.6 Google photos Mobile f/1.4 ) other methods for expressing this information also.! Means: Finally, other designations ] while offering the flexibility to frame. And it’s compatible with this means the lens is best remembered as being a formula depth of field focusing. Of max apertures indicates that the diameter size changes with the focal.... Know the lens millimeters ( mm ), the more interesting features of the EF lens mount is a lens! Dg, macro, micro lower numbers let in more light, making faster shutter possible... You can use, the smaller your maximum aperture ( 1:4 for f/4 ) are repeated indicates the. Watch Netflix Instantly on your camera lens is compatible with use EF lens mount is FE without a lens can! In order to take advantage of the focal length ranges from 17mm to 70mm this... Images without a camera lens are superfluous, essential, or “Sigma” to miss, now Cyber... Ranging from 10-30mm, the possible depth of field and the maximum aperture ] [ focal length, the your... With wider apertures, compared to lenses without image stabilization places on the lens in more your. Interesting features of a camera lens to reduce glare or filter out colors to achieve some cool effects Watch Instantly... Automatic focusing digital cameras with APS-C sized sensors ranges from 17mm to 70mm see a maximum aperture ( leading that... A little DG, macro, micro that smartphone cameras just can ’ t the.

.

Frances Slocum Campground Map, Taj Mohammed Khan Age, Illustrator Compound Path Greyed Out, 2017 Honda Civic Ex-l With Navigation, 1979 Toyota Corolla Sr5, Plumber Logo Images, Letitia Dean And Jason Pethers Wedding, Rooting Japanese Maple In Water,