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Articles: Digital Photography Review (dpreview.com)
All articles from Digital Photography Review
Articles: Digital Photography Review (dpreview.com)
  • Ready for takeoff: GoPro records rocket trip into space

    While you're waiting for Space X to get you into orbit, there's an easier way to enjoy an otherworldly view. A GoPro HERO 4 camera was used to record a UP Aerospace Inc. SL-10 rocket's travel into space, showing the flight at speeds of up to Mach 5.5 from Earth to an altitude of 120,700m / 396,000ft and back again. The video was recorded on November 6, 2015 during a mission to deploy the Maraia Capsule designed by NASA, and was recently showcased by GoPro on its YouTube channel.

    This isn’t the first time GoPro’s action cameras have been used to record space missions. In April 2015, for example, NASA published a pair of videos showing astronauts on a spacewalk, both of which were recorded using the small action cameras. A GoPro was also used to record Felix Baumartner’s ‘Red Bull Stratos,’ a space jump that took place 24 miles above Earth. 

    GoPro HERO4 Session Review

  • No alias: Pentax K-1 Pixel Shift shows impressive early results

    It's been a long wait for the arrival of our Pentax K-1, but it finally is here. We wasted no time taking Ricoh's new flagship DSLR to our studio to see how the long-awaited full frame 36MP sensor stacks up to the competition. Huge thanks to LensRentals for renting us the lens for these tests.

    Pixel Shift

    It's worth calling out in particular one of the major highlights of the K-1: its Pixel Shift Resolution mode that debuted in the APS-C format K-3 II last spring. We're only showing you this mode at ISO 100 for the time being, but we'll be updating our widget with higher ISOs once ACR support is updated.

    The K-1's Pixel Shift Resolution mode takes four consecutive shots and moves the sensor by a single pixel each time. This means that each of the original pixel positions gets sampled by a red, a blue and two green pixels. This has a few major benefits. First, it removes the need to demosaic: you don’t have to interpolate data from the surrounding area to build up color information, which leads to less color aliasing. It also brings a modest increase in resolution because you're sampling luminance information at every pixel position and not effectively blurring it by borrowing it from surrounding pixels. The increased resolution can easily be seen by looking at the color resolution targets, or looking at the text in the center of the studio scene, which shows no aliasing and can be read down to the very last line.

    Another benefit to Pixel Shift is better noise performance: because you’re taking four shots, the camera essentially captures four times as much light, which decreases relative shot noise contributions. The decreased noise levels lead to better high ISO performance, and increased dynamic range.

    There's yet another benefit to Pixel Shift: the camera locks up the mechanical shutter and mirror, and uses a fully electronic shutter instead. This removes any risk of vibrations that might be caused by the mechanical shutter. For example, there's a very tiny amount of blur in single shot mode at 1/40 sec, although it's near-imperceptible without a direct comparison to a sharper, Pixel Shift image.

  • Unconventional COVR Photo case launches for iPhone SE

    The COVR Photo iPhone case promotes shooting from an unconventional angle. Rather than holding your phone with the screen facing toward you, a prism in the case redirects the camera's angle of view so the user can hold the phone as they would a remote control. Previously available for the iPhone 5/5S and 6/6S, it's been released for the iPhone SE.

    The app that is used with the device has also been improved to allow control of contrast, brightness and manual focusing, as well as a square shooting option and a burst mode.

    The guiding principle behind the device's design is that it allows more comfortable one-handed operation of the iPhone. Because the user points the ‘wrong’ part of the phone towards the subject, it isn’t obvious that a picture is being taken. The inventor, photo journalist Thomas Hurst, says that the design lets parents take more natural pictures of their children. He claims it is also useful for street photography and photo documentary work.

    The device consists of a rigid case that snaps around the iPhone and a sliding prism with a lens unit that can be pushed over the phone’s camera unit or pulled back for 'normal' shooting. An app converts the image so that it doesn’t appear upside down on the screen.

    The COVR Photo lens case for the iPhone SE costs $59.95 and comes in black, white, blue and purple. The case is also available for the iPhone 5/5S and 6/6S.

    For more information visit the COVR Photo website.


    Press release:

    COVR Photo Releases App and New Case for iPhone SE

    COVR the world with the only case that allows for one-handed iPhonography

    As the only iPhone case with a built-in lens and custom app, COVR Photo is pleased to announce its case for the new iPhone SE. COVR Photo is the only case that allows users to take photos and videos while holding the phone one-handed and from a horizontal angle, like holding a TV remote.

    "As a professional photographer for 20-years, I know how difficult it can be to capture a timeless moment,” said COVR Photo Founder, Thomas Hurst. "COVR came from a desire to help my wife easily capture the natural moments of our four children with the camera she always had with her – her smartphone.”

    He adds, “COVR is the first smartphone case with a sliding lens built directly into it – so it’s always with you, at your fingertips, ready to help all of us capture the spontaneity of life with of our family, friends, and loved ones."

    Accompanying the new iPhone SE case, COVR Photo has just launched an updated app. In addition to adding manual contrast and brightness adjustment, the new app also features a “burst” mode, improved social media sharing, square camera mode and manual focus abilities.

    The iPhone SE COVR case is available online now in black for $29.95 and $24.95 for white, blue and purple. Along with the case for the new iPhone SE, COVR Photo also offers cases for the iPhone 5/5S and iPhone 6/6S.

    Parents, grandparents, professionals, photo-enthusiasts and travelers around the world use COVR to take photos and videos from a unique angle to capture once-in-lifetime moments using just one hand.

    The case features include:

    • Patented sliding feature– Allows users to shoot using the COVR case similar to a remote control, or slide the COVR lens back and take pictures or videos with the regular iPhone camera lens.
    • Built-in Lens– COVR Photo is the only iPhone case with a built-in lens.
    • Protective case– Shock absorbent rubber core and a hard outer shell provides durability and protection without the bulk and weight.
    • Mobile app– The free COVR Photo app complements the COVR case by redirecting pictures through the COVR Photo lens as well as allows users to adjust focus, exposure and formatting.

    Based out of Renton, Wash., COVR Photo was founded in 2014 by award-winning photojournalist Thomas Hurst. Designed with a high-quality prism, COVR Photo sits at just under a half inch tall, fitting comfortably in most pockets.

    About COVR Photo: Created by photographer, Thomas Hurst, COVR Photo produces revolutionary products to equip and inspire people to document the world around them through photographs and videos. To learn more, visit covrphoto.com.

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