Tag: crowned

  • Laptop/Rooftop: Chicago Apple Store is Crowned with a Giant MacBook

    [ By SA Rogers in Architecture & Offices & Commercial. ]

    Construction is in full swing on Chicago’s new Apple store by Foster + Partners, revealing a surprise design feature that wasn’t visible in the firm’s early renderings: a gigantic MacBook for a roof. When the project was initially unveiled in 2015, the drawings depicted a sleek two-story structure with river views, glass walls and a slimline roof canopy that looks like it’s precariously balancing on slender supports. But construction crews recently added a shiny metallic silver finish to that canopy – and a familiar white Apple logo.

    The store is a relocation of Apple’s Chicago flagship, and will measure about 20,000 square feet. The glass walls range from 14 to 32 feet in height, but there’s little danger of breakage, as they consist of four layers of half-inch-thick glass melded with additional layers of thicker laminated glass. The carbon fiber roof is made of a similar material as yacht hulls, which is what gives it that iconic sheen. It’s four feet thick in the center and just four inches thick at its tapered edges.

    You can see this unexpected addition in action in the video above. DNA Chicago reports that crews affixed the logo and left it in place for no more than 60 minutes before removing it again, but it seems likely that it’ll return, especially since the Chicago Tribune reported back in March that the logo would be part of the design. The Tribune has more photos of the construction process.

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    [ By SA Rogers in Architecture & Offices & Commercial. ]

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  • Has a new champion been crowned? Sigma 85mm F1.4 Art lens review

    The Sigma 85mm F1.4 Art hasn’t been on the market long, but it has already begun to make some serious waves. Lenstip and DxO have rated it the sharpest 85mm lens ever created, beating out even the legendary 85mm F1.4 Zeiss Otus, which isn’t something that we take lightly. We were lucky enough to get our hands on the lens back in mid-November and we were very impressed to say the least, so much so that it took top honors for the ‘Best Prime Lens of 2016’ as chosen by our staff.

    It has, without a doubt, been a pretty big topic of discussion not only amongst our staff members, but also amongst portrait photographers around the world. With that said we just had to get our hands on it to see how it really performs and to see how it holds up next to some very stiff competition at 85mm. The Sony FE 85mm F1.4 GM is a very formidable competitor and arguably the best modern 85mm F1.4 on the market (behind the manual focus Zeiss Otus, of course). With that in mind, the question is; can the Sigma hold its own? Our review will answer that question and more.

    APS-C   

    With an equivalent focal length of 136mm and an equivalent aperture of F2.2, this lens can be usefully used on an APS-C camera. Even with its slightly longer focal length, it does still fit into the focal range that’s often used by portrait photographers and the fast aperture does allow for it to be used in low-light situations as well. However, its size, weight and price makes it worth considering 85mm F1.8 lenses instead.

    Sigma 85mm F1.4 DG HSM Art headline features

    • F1.4 maximum aperture
    • 85mm max fixed focal range
    • 2 FLD glass elements (low-distortion glass with fluorite-like performance)
    • 1 Aspherical SLD element
    • Canon EF, Nikon (FX) and Sigma SA Bayonet mounts

    Specifications Compared

      Sony FE 85mm F1.4 GM Sigma 85mm F1.4 DG HSM Art
     MSRP $ 1800.00  $ 1199.00
     Lens Type Prime Prime
     Focal Length 85mm  85mm 
     Filter Thread 77mm 86mm
    Image Stabilization No No
    Lens Mount  Sony FE Canon EF, Nikon (FX), Sigma SA Bayonet 
    Aperture Ring Yes (w/ d-click feature) No
    Maximum Aperture  F1.4 F1.4
    Minimum Aperture F16  F16
    Minimum Focus  0.80 m (31.5?) 0.85 m (33.46?)
    Diaphragm Blades  11 9
    Elements  11  14
    Groups  8 12
    Special Elements/Coatings  1 ‘Extreme Aspherical’ element, 3 ED elements and ‘Nano AR’ coating 2 FLD glass elements and 1 Aspherical SLD element
    Autofocus  Yes Yes
    Motor Type  Ring-type Supersonic Wave Ring-type Hypersonic
    Full Time Manual  Yes Yes
    Focus Method  Internal Internal
    Distance Scale  No Yes 
    DoF Scale  No Yes
    Full Weather Sealing  Yes No (dust and splash proof)
    Weight 820g (1.81 lb) 1131g (2.49 lb) 
    Dimensions  108 mm (4.23?) x 90mm (3.52?) 126mm (5.0″) x 95mm (3.7″)
    Hood  Yes ( ALC-SH142) Yes

    As you can see the lenses are fairly different in terms of build and design. The Sony 85mm has a manual aperture ring that can not only function on its own, but the aperture can also be adjusted with the camera by switching the ring to ‘A’. This ring also features a special de-click feature for smooth, silent aperture changes while shooting video. The Sigma 85mm lacks the weather sealing that the Sony has and there’s also a fairly substantial difference in size and weight as the Sony 85mm is a fair bit smaller and lighter. The price point is one area of the where the Sigma really prevails over the Sony, on paper, at least.

    Specifications are fun to look at, but the real question is how do these lenses perform? Read on, to find out.

    Articles: Digital Photography Review (dpreview.com)

  • Sigma 85mm F1.4 Art DxO results: a new king is crowned

    $ (document).ready(function() { LensWidget({“containerElement”:”#reviewLensWidget”,”allowProductChange”:false,”enableKeyboardShortcuts”:false,”state”:{“lensId”:”sigma_85_1p4_dg_hsm_a”,”cameraId”:”nikon_d810″,”version”:”0″,”view”:null,”aperture”:null,”focalLength”:null}}) })

    DxO just published its score for the Nikon mount Sigma 85mm F1.4 DG HSM A. Drumroll please: it received the highest score ever for a lens on DxO, a 50 when mounted to a D810 and a 51 when mounted to the D800E. What’s even more impressive is that it actually scored a perfect 36 P-Mpix for image sharpness on a D810, which has a 36MP sensor.

    That’s pretty incredible. We know that sharpness isn’t everything when it comes to shooting portraits, but you have to admire the sheer feat of engineering that Sigma was able to accomplish with this lens. 

    See our Sigma Art 85mm F1.4
    sample gallery

    Articles: Digital Photography Review (dpreview.com)