China
Africa
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Word Play
Published in Robert A. Harris, Writing with Clarity and Style, 2017
For example, below is a passage with a former anthimeria, now converted to a verb by frequent use: The goal of the modern tourist is not the experience of the grand journey, nor even the stimulation of meeting a different people. The goal of the modern tourist is to find a scene that will photograph well. The word photograph is now used as a verb every day, so it will likely lose any rhetorical flavor it was intended to evoke. On the other hand, here is the passage with a fresher anthimeria: The goal of the modern tourist is not the experience of the grand journey, nor even the stimulation of meeting a different people. The goal of the modern tourist is to find a scene that will camera well.In this example, the substitution of camera for the former-noun-turned-verb photograph, emphasizes the mechanics of taking the picture over the picture itself. The writer appears to imply that what looks good through the viewfinder not only is more important than the actual scene but also more important than a photograph of the scene.
Infrared Photography
Published in Adrian Davies, Digital Ultraviolet and Infrared Photography, 2017
IR portraiture has been popular at various times over the years, in particular in the US, where some photographers specialise in it. Due to the penetration of the skin by IR wavelengths, the resulting images result in a translucent skin texture resembling alabaster, completely smooth, well suited to female portraiture, but perhaps not so for males. It can make acne spots disappear completely. It is probably best to use an IR-converted camera rather than a full-spectrum camera so that you can use the viewfinder normally.
Photography of the nail unit
Published in Archana Singal, Shekhar Neema, Piyush Kumar, Nail Disorders, 2019
Sanjeev Gupta, Kartikay Aggarwal
A camera is a basic optical instrument for recording or capturing images that may be stored locally, transmitted to another location, or both. Various parts of the camera are lens, sensor, body, viewfinder, flash, aperture, shutter release, memory card, user controls, and LCD screen. These parts are present in both compact and digital Single-lens reflex (DSLR) cameras. Lens—Light enters through the lens and the process of image capturing begins here. In DSLRs, the lens can be changed.Sensor—Sensor captures the light and converts the light in to an electronic signal.Body—The body houses all the components of the camera.Viewfinder—It lets the photographer see the shot in real time.Flash—To provide adequate illumination of the lesion.Aperture—It controls the amount of light reaching the sensor by changing the diameter of the lens opening. Aperture size can be increased for low lighting conditions and vice versa.Shutter release—It is the switch that releases the shutter and allows the image to be captured. Duration for which shutter remains open is decided by shutter speed and can be changed depending on photographic requirement. For example, a moving object will require fast shutter closure and hence greater shutter speed.Memory card—To store the data.User controls—To control the amount of light exposure by adjusting aperture, shutter speed, etc.LCD screen—Cameras now have LCD screens, which lets the photographer see the shot in real time and thus, helps plan the shot.
The learning camera: A personalized learning model for online pedagogy in human services education
Published in Journal of Technology in Human Services, 2019
Hope J. Corbin, Devyani Chandran, Christina Van Wingerden, Jacquelyn Baker-Sennett
Unlike students’ experiences in traditional face-to-face classrooms, students in online learning environments do not passively walk into a physical space where information flows at all students simultaneously. Rather, online students are the activators of their “classroom” experience—they ultimately control which web pages they open; how long they view content; if they fast forward; and the order in which they will complete readings, view lectures, and finish assignments. This learning process is a radically different experience from the face-to-face classroom and, when considered, can help instructors to be purposeful when presenting content, delivering instructions, and interpreting student work. Once students click on a particular reading, video, or assignment description (or enter an internship or other community-based learning site), they are peering through the viewfinder—making sense of what they see, often grappling with their emotions, and determining which parts of the scene to explore. Through viewing and activating the content in this manner, students begin to identify areas of interest for further inquiry. This process is depicted in Figures 1 and 2 as the viewfinder, the student-activated shutter release, and the student-identified focus of inquiry.
A novel conduit-based coaptation device for primary nerve repair*
Published in International Journal of Neuroscience, 2018
Ravinder Bamba, D. Colton Riley, Nathaniel D. Kelm, Nancy Cardwell, Alonda C. Pollins, Ashkan Afshari, Lyly Nguyen, Richard D. Dortch, Wesley P. Thayer
We examined all stained slides using an Olympus Vanox-TAH-2 light microscope (Olympus, Center Valley, PA, USA) interfaced to a Pixera Pro 600 HS digital camera (Pixera Corporation, Santa Clara, CA, USA). We captured multiple digital photomicrographs at 10× using Viewfinder V3.0.1 (Pixera Corporation). For each nerve processed, we photographed representative cross-sections proximal to the site of injury and distally in the sciatic nerve. To count axons, the number of stained axons on each photomicrograph, we used Fiji, an open source image processing software with a method that has been previously reported [8]. We determined the total number of axons per cross-section by adding the axon totals from all representative photomicrographs or a given cross-section; we took care to avoid double-counting axons.
Mirrorless cameras for medical photography – time to switch?
Published in Journal of Visual Communication in Medicine, 2018
Autofocusing (AF) has improved with the introduction of phase detection in addition to contrast detection on most mirrorless models. However, for the purpose of patient photography manual focusing is standard practice and it is in this area where it may become limited and troublesome. This is due to the viewfinder differences. Mirrorless cameras process data from the digital sensor and display an image on either a display on the back of the camera or a small simulated electronic viewfinder (EVF). This differs from a DSLR where an optical viewfinder (OVF) allows light to bounce through a mirror and prism into the eye, offering an instant ‘through the lens’ live view. An EVF has the advantage of being able to provide an instant preview of how the photo will be rendered, and what the sensor is about to capture at any given exposure. This feature is turned on by default on the Sony A7rIII. Unfortunately, this feature has little use during medical photography, as the use of a small aperture with only ambient light results in an extremely dark EVF display. To mitigate this and for critical focus at stopped down apertures, ‘effects preview’ must be turned OFF. This sets the lens at maximum aperture during focusing, stopping it down only once the shutter is pressed. This however creates an additional issue; as the shutter is half depressed, the aperture is immediately stopped down to prepare for exposure, similar to a depth of field preview mode. The EVF now has a reduced refresh rate as it tries to illuminate the scene by slowing down the speed at which it captures images, resulting in a severe lag. Of course, the shutter can be pressed fully without first needing a half press; however this cannot be done without a split-second delay that could be crucial during the capture of a decisive moment.