In digital camera terminology face detection, also called face-priority AF (auto focus), is a function of the camera that detects human faces so that the Twenty-inch Trinitrons, auto-focus cameras, P.C.2's with software. To overcome the shortages of bisected laser-based auto-focusing method, we modified the optical structure of the laser-based autofocus system and developed a high robust image processing method to achieve high precision autofocus performance. My camera makes a funny sound when it autofocuses. (verb) My camera makes a funny sound when it autofocuses. These people never stop moving their heads. More generally, the interpretability produced by the Auto-Focus approach technically only depends on the availability of attention scores and the interpretability of code elements that follow certain syntax, and thus AutoFocus is likely applicable to many other neural networks for various code learning tasks. As long as you are half-pressing or fully pressing the shutter release, (or using the popular AF-ON technique) the camera’s autofocus system will continuously track whatever subject is under your selected focus point. NIKON D800E + 105mm f/2.8 @ 105mm, ISO 200, 1/320, f/5.6 Manual Focus vs Autofocus. Meaning of autofocus. A camera's autofocus system intelligently adjusts the camera lens to obtain focus on the subject, and can mean the difference between a sharp photo and a missed opportunity. Noun: 1. autofocus - an optical device for focussing a camera or other instrument automatically The autofocus attribute is a boolean attribute.. They appear to be talking bobble head dolls and never look at you when you are speaking. Auto-focus is a feature of digital cameras that allows them to focus correctly on a subject. This autofocus mode will get you through most situations. Essentially what this setting does is to continuously track your initial focus point and readjust the focus accordingly. Autofocus points can also be connected to the camera's metering system in many models. A type of camera lens that can adjust the distance of what is in focus (focal length). Next we have the step up from the single focus to Canon’s AI Servo, and Nikon’s AF-C modes. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. opensubtitles2. To start out, it’s important to understand how autofocus generally works: First, you half-press the shutter button. Despite a seemingly simple goal—sharpness at the focus point—the inner workings of how a camera focuses are unfortunately not as straightforward. by John Reilly (neuroanatomist) With my first SLR, I placed my subject in the middle of the frame and turned the focus ring until a feature in the split prism lined up and the microprism collar lost it sparkly look. To focus automatically. It was not until the autofocus hit the mark that I noted the jaws of the scorpionfish trapping the poor butterfish. Definition and Usage. Points: 0 (0 votes) We answer your questions or comments below: Questions? However, there are instances when ~ ing is preferable to automatic: for example, few auto focus systems can cope adequately when the subject is behind bars, such as animals in a zoo. Autofocus can be Continuous, meaning focus is maintained regardless of where it moves within the frame, or Single, meaning the point of focus is locked regardless of where the subject may move. What does autofocus mean? autofocus (third-person singular simple present autofocuses or autofocusses, present participle autofocusing or autofocussing, simple past and past participle autofocused or autofocussed) To focus automatically. In a camera , this is used to focus the subject image, th rough the lens , onto the focal plane - the film or digital sensor . Definition of autofocus noun in Oxford Advanced Learner's Dictionary. Automatic focus, or autofocus, is when the camera system drives a motor to move elements in your lens to change focus. This is a relatively new feature which has turned out to be quite useful. Autofocus is a mechanism in an optical system which automatically changes the optics to focus an image. What makes the C510 a true "Cyber-shot" device is a combination of features such as autofocus, a camera light, face and smile detection, photo blogging capabilities and picture editing tools. When present, it specifies that an element should automatically get focus when the page loads. But the camera can choose the wrong subject or wrong part of the subject to focus on. UNDERSTANDING CAMERA AUTOFOCUS. When using this AF mode, the camera is analyzing the scene and choosing which subject to focus on. Now that we have a basic understanding of how the lens works to focus the light onto the sensor or film, we can talk about the magic of autofocus. Auto Area Auto Focus. It reacts very rapidly indeed, and both the auto focus and the light metering perform very well. Now you're ready to look at light meters, lenses, image stabilization, autofocus, and flash. For more information see autofocus. auto focus. Then, you fully depress the shutter button. Auto-focus. Auto-focus - definition. Write and we will respond to your email automatically | Meaning, pronunciation, translations and examples Auto focus systems operate very quickly and reliably, and can usually focus more rapidly than the photographer can unaided. Autofocus people can also be described as being eternally on fas Canon EOS DSLR Autofocus Explained. It enhances the quality of the photo over fixed-focus cameras and allows for close-ups (or the even closer macro shots). It stays on my camera more than any other lens. needs more information? ‘Don't expect to find autofocus or any to other ‘latest features' type stuff on them.’ ‘There's no autofocus, no auto-exposure, no auto-film-winding, no auto-nothing.’ ‘A bottom end camera body, but with autofocus.’ ‘Manual-focus cameras use a linear polarizer, while many autofocus cameras use a circular version.’ The autofocus was shaky in the cold, and my gloved hands kept moving the exposure dial. Here is the definition of autofocus from Wikipedia: An autofocus (or AF) optical system uses a sensor, a control system, and a motor to focus on an automatically or manually selected point or area.Tweet. Autofocus. Information and translations of autofocus in the most comprehensive dictionary definitions resource on the web. The last autofocus mode is AI Focus AF (Canon)/AF-A (Nikon), which stands for Automatic Autofocus. There's no autofocus, no auto-exposure, no auto-film-winding, no auto-nothing. For instance, you could add an "autofocus" attribute to your input and this input would gain initial focus when the page is loaded. (autofocus, AF).In digital cameras, autofocus is a function of these cameras, which allows you to automatically focus on an object. focal length: [ length ] an expression of the longest dimension of an object, or of the measurement between its two ends. Active or Continuous Focus Modes. It can be helpful because you aren’t having to manually select a specific focal point in one shot. Do we improve the definition? A person who is too wired to focus on anything for long and is continuously blinking as if imitating a camera on autofocus. This means that the camera will determine the appropriate exposure based on the chosen autofocus point, which is typically the photo's main subject. In this mode, the camera’s focusing computer jumps back and forth between AF-C and AF-S (Nikon)/One-Shot AF and AI Servo AF (Canon) depending on the situation. Auto-focus - definition Auto-focus is a feature of digital cameras that allows them to focus correctly on a subject. Noun: 1. autofocus - an optical device for focussing a camera or other instrument automatically Autofocus definition: a device that focuses a lens , camera , etc. Phones use passive auto-focus with contrast measurement. autofocus on Wikipedia. Common crawl. This sends a signal to your camera to start acquiring focus. Easily, we get all the answers we need. To focus manually, you need to turn a ring or similar mechanism on the lens instead. translation and definition "auto focus", Dictionary English-English online . Autofocus people can also be described as being eternally on fast-forward. OpenSubtitles2018.v3. Definition of autofocus in the Definitions.net dictionary. II. ‘Don't expect to find autofocus or any to other ‘latest features' type stuff on them.’ ‘There's no autofocus, no auto-exposure, no auto-film-winding, no auto-nothing.’ ‘A bottom end camera body, but with autofocus.’ ‘Manual-focus cameras use a linear polarizer, while many autofocus cameras use a circular version.’ However, there are instances when manual focusing is preferable to automatic: for example, few auto focus systems can cope adequately when the subject is behind bars, such as animals in a zoo. Your camera fires off a (hopefully focused) shot. Autofocus modes refer to the way your autofocus behaves when focusing on a subject. Term: AI Servo Description: AI Servo is the name of Canon’s continuous-servo autofocus system, that continuously tracks a subject. Example sentences with "auto focus", translation memory. Glossary. Autofocus definition is - an automatic focusing system (as on a camera). As technology advanced, camera companies figured out how to motorize the camera body and lenses to move the focusing elements or focusing group toward or away from the sensor or film. In the early days of photography, every single lens was manual focus only (and many … Autofocus The ability of the camera and lens to keep the subject in focus during an exposure. What does autofocus mean? Out of focus definition: If an image or a camera , telescope , or other instrument is out of focus , the edges of... | Meaning, pronunciation, translations and examples Measuring an infant's crown-heel length. Wikipedia ; Verb . Auto focus systems operate very quickly and reliably, and can usually focus more rapidly than the photographer can unaided. crown-heel length (CHL) the distance from the crown of the head to the heel in embryos, fetuses, and infants; the equivalent of standing height in older persons. 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