Sep 13, 2019
THE MARE,ITS FOAL AND THE MAGPIE...:COURSEULLES-NORMANDY-FRANCE July 2014 by FREDERIC VIGNOLLES
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THE MARE,ITS FOAL AND THE MAGPIE...:COURSEULLES-NORMANDY-FRANCE July 2014 by FREDERIC VIGNOLLES
Engineers have designed what could be the last eyeglasses anyone would need. Right now, they’re bulky but smart. Liquid lenses are key to their adjustability — and those lenses focus automatically.
This is one in a series presenting news on technology and innovation, made possible with generous support from the Lemelson Foundation.
With round lenses set in super-thick frames, these new eyeglasses look like they belong on a cartoon character. But what they lack in style, they make up for in smart design. Their lenses are made of glycerin — a thick, colorless liquid — encased in clear rubber. And without effort, they will focus on whatever the wearer looks at.
Nazmul Hasan is the first to admit that the glasses he helped design may not be comfortable — or look cool. “They're not very fashionable,” he concedes. “And they're heavy,” notes this graduate student in engineering at the University of Utah in Salt Lake City.
Still, these glasses are truly special. The lenses in normal glasses curve in a specific way to help a person’s eyes focus on something close or far away. Not everyone who needs glasses requires the same curvature. So one person’s glasses will not necessarily work for someone else. In contrast, the glasses that Hasan and his team designed can be adjusted to meet anyone’s visual needs.
Consider, for example, someone who wants to read a Science News for Students story. With an app on her phone, the reader sends her lens prescription to the glasses. Now, when she puts the glasses on, a small infrared (In-fruh-RED) light in the frames begins sending out light pulses. That light bounces off what’s in front of the wearer — here, perhaps your smartphone — and back to the glasses. Those specs use the bounced light to calculate the distance from the glasses to the smartphone screen. Tiny motors in the frame respond by bending the lens so that its curvature matches the person's prescription. Voila! The article comes into focus.
Tunable, liquid lenses can be turned into “instant prescription eyewear,” says Tracy Xu, who did not work on the new glasses. Xu is an engineer at the University of Central Florida in Orlando. She studies how new technologies that use light — like lasers and lenses — can be used to build devices that help people.
Tunable glasses could be useful in emergencies and in poor countries, she says. A whole family might use one pair as a backup for broken glasses. “Millions of people in developing countries cannot afford an eye exam or do not have access to optometrists,” says Xu. “Low-cost, self-focusing liquid lenses can become a relatively cheap solution.”
THE MARE,ITS FOAL AND THE MAGPIE...:COURSEULLES-NORMANDY-FRANCE July 2014 by FREDERIC VIGNOLLES
Its only Auto if its set up correctly!
I have posts mounting up in my head and no time to write. To much going on I cannot talk about but is exciting times for my business. Watch this Space! Autofocus issues seems to be the clickbait for Fuji (H) users, so more clickbait ;-)
I have posts mounting up in my head and no time to write. To much going on I cannot talk about but is exciting times for my business. Watch this Space! Autofocus issues seems to be the clickbait for Fuji (H) users, particularly since the last 2 firmware updates. The proverb my dad quoted at me? A bad workman always blames his tools. The thing is, as I went on later in this exchange is.. The…
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These 5 Under Used Camera Settings are Game Changers
These 5 Under Used Camera Settings are Game Changers. These are settings you aren't using but should be to advance. Read More...
These 5 Under Used Camera Settings are Game Changers Professional cameras can look like something designed by the NSA, but they really aren’t as complicated as first impressions might lead us to believe. With basic knowledge of camera settings and the exposure triangle, you can begin to figure out what most of the functions do and begin experimenting with your camera to push your knowledge and…
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Could Nikon’s Pro Mirrorless Camera Feature ‘Dual Pixel AF’-Like Tech?
Could this be the basis of Nikon's upcoming mirrorless camera's AF system?
Nikon’s professional mirrorless camera is expected to be announced at some point this year. But details are still scarce. There is no doubt, Canon’s Dual Pixel AF technology is some of the best out there, especially for video and when it comes to tracking subjects. So, when a new report comes out indicating some patents that suggest Nikon’s upcoming ‘pro’ mirrorless camera could feature some…
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New firmware v4.0 announced for the Fujifilm X-T1
Fujifilm have today announced that a new version, 4.0 of the X-T1 firmware will be available for download late June 2015.. This update brings huge upgrades to the auto-focus system and shows yet again why so many people have such an affinity for the Fujifilm X-Series system as opposed to other mirrorless makes out there. Have a look at the new AF system in action in the Fujifilm video below. [embedvideo id="ZaoIZXA5RMM" website="youtube"] PRESS RELEASE Substantial firmware updates for the X-T1, delivering a new AF system for better capture of moving subjects among other improvements Embargo: May 11th, 2015 6a.m. BST Fujifilm Corporation has announced that it will release a free firmware update for both the Fujifilm X-T1 and Fujifilm X-T1 Graphite Silver Edition in late June, 2015. The firmware introduces a new AF system with upgraded autofocus performance as well as an array of other improvements that reflect feedback from users. This update follows on from a previous major functionality improvement for the X-T1 introduced on December 18th, 2014 and shows that Fujifilm continues to listen to customer feedback to boost the performance of X-Series cameras, ensuring many years of continued use. <Firmware release date> Late June, 2015 <Firmware version> FUJIFILM X-T1: Ver.4.00 <Improvements with this firmware update> 1. New AF System (1) New AF system with Zone and Wide/Tracking modes for effortless capture of moving subjects The AF System complements the fast and accurate 49-single-point autofocus system with new Zone and Wide/Tracking modes, which use 77 autofocus points across a wider area to substantially improve the camera’s ability to capture moving subjects. The Zone mode allows users to choose a 3x3, 5x3 or 5x5 zone from the 77-point AF area. When combined with the AF-C continuous focusing mode, the camera continues tracking a subject at the centre of the selected zone. The 3x3 and 5x3 zones at the centre, in particular, offer extra-fast focusing with the use of the built-in phase detection pixels. In the Wide/Tracking mode, the camera displays the area in focus, identified automatically out of the 77-point AF area (Wide in the AF-S mode) and tracks the focus area’s subject across the entire 77-point AF area (Tracking in the AF-C mode). This makes it possible to maintain focus on a subject that moves vertically, horizontally, and back and forth. (2) Improvement of AF accuracy Single-point AF divides the focus area into smaller sections to more accurately determine the distance to the subject for even greater focusing accuracy. The built-in phase detection pixels have the detection range of 0.5EV, an improvement from the previous 2.5EV, delivering phase detection AF performance that enables fast focusing in low-light conditions and on low-contrast subjects. (3) Eye Detection AF The firmware update provides Fujifilm’s Eye Detection AF, which automatically detects and focuses on human eyes. The function allows you to easily focus on the eyes even in more complex conditions, e.g. when shooting a portrait wide open to obtain a beautiful bokeh background. (4) Auto Macro mode The firmware update introduces the Auto Macro function, which automatically switches the camera into the Macro mode while maintaining the conventional AF speed. You no longer have to press the Macro button to initiate a close-up shot. This update eliminates the Macro function assigned to the Macro Button, allowing you to assign a different function to the button. (5) AF improvement in the Movie mode The optimised algorithm delivers a more natural and smooth AF action during movie recording. 2. Other improvements (1) Improved Shutter Speed Dial operation When the Shutter Speed Dial is set to T and the Shutter Type to Mechanical + Electronic, you can use the command dial to set a full range of exposure times from 30-1/32000sec. Previously, this was limited to 30-2 seconds. This means you can change the shutter speeds across a broader range without having to change camera position. This is particularly useful when shooting in portrait orientation with the Vertical Battery Grip VG-XT1 attached. (2) Exposure Compensation control in Manual You can use the Exposure Compensation dial to make exposure adjustments while shooting in Manual exposure mode with ISO Auto selected. (3) Finer lines on the framing grid enhances visibility The lines on the framing grid, which you can choose to display in the Screen Set-Up menu, have been made finer making it easier to view the subject. (4) Name of Silent mode has been changed to avoid confusion The Silent Mode has been renamed to “SOUND & FLASH OFF”. 3. Previously, Firmware ver. 3.00 (released in December 2014) brought substantial improvements to the following functions: (1) High-speed electronic shutter with a maximum speed of 1/32000sec. (2) Option to mute the shutter sound (3) Classic Chrome Film Simulation mode for more creativity (4) Natural Live View function - just like the naked eye (5) EVF / LCD Colour Control (6) AF+MF function for seamless manual focusing (7) Direct selection of AF area (8) Interchangeable AE-L / AF-L buttons (9) Ability to change the size of the Focus frame in Manual Focus (10) Direct selection of Macro mode (11) Customisable Q. Menu (12) New video frame rates (50P / 25P / 24P) (13) Manual shooting in Video mode (14) Phase detection AF support for Instant AF (15) Interlocking of metering and focus areas (16) Shutter speed range expanded in Program Shift mode from 1/4sec to a maximum of 4 seconds (17) Additional settings in Function (Fn) options (18) Instax Printer print (19) Software lock function added to avoid accidental button pressing (20) Custom white balance options expanded from one to three (21) Greater choice of EVF / LCD display options when shooting in the Manual exposure mode (22) Support for PC-tethered shooting with HS-V5 software (23) Ability to change Face Detection functionality in Focus-Frame Selection AF (24) When pressing AE-L button, exposure is reflected in live view (25) When AF is locked by pressing AF-L button, the AF lock is maintained during zooming (26) Icon added to show RAW shooting is not available when an expanded sensitivity range is selected in RAW shooting.
ENDS -
AVAILABILITY of FIRMWARE FUJIFILM X-T1: Ver.4.00 The Ver.4 firmware will be available from end June 2015 http://www.fujifilm.com/x-t1/ver4/ This firmware is exclusive to the FUJIFILM X-T1 and X-T1 Graphite Silver Edition cameras. Firmware is software that controls the camera body.