Otro título en Dolby Vision
http://ultrahd.highdefdigest.com/46515/powerrangersultrahdbluray.html
The mighty morphing power rangers battle to save Ultra HD Blu-ray alongside a stunning, reference-quality HEVC H.265 encode in Dolby Vision, marking it the first live-action film on a physical media with Dolby Vision HDR. For anyone without a Dolby Vision-capable HDR-display, the disc will default to HDR10.
I couldn't imagine an already demo-worthy Blu-ray being bested, but here it is, a 4K presentation that handily outshines its SDR counterpart and looks slightly better in Dolby Vision than the HDR10. Don't get me wrong, the HDR10 encode is gorgeous with much to love and gush over, and the difference between these competing HDR formats is not as dramatic as the jump from the HD version. In all honesty, they are pretty subtle, but there are differences nonetheless.
For one, primaries are more vibrant and have a slightly gaudier zest to them in Dolby Vision, and this is apparent in the way the green of grass and trees or the blue sky shines with a bit more pop. Several exterior shots come with that much sought-after looking-out-the-window effect, especially the extreme wide shots that take in the whole town or the surrounding environment, and facial complexions are more revealing and lifelike than before. When the teen superheroes don their uniforms, each color radiates with more intensity and flash, particularly the Red Ranger who glistens under the sun like a cherry tomato. The same goes for secondary hues appearing brighter and more true-to-life than the Blu-ray while only a tad perkier than the HDR10. The cold open with the original Power Rangers is a great example of this as viewers can distinctly make out more shades of colors in the bodies of the aliens. Also, compared to the HDR10 version, Rita's emerald green costume appears more vivid and intense in the sunlight while exposing black lines and very subtle hints of yellow. Meanwhile, Goldar and Rita's golden staff come with a dazzling, realistic sparkle. The Morphing Grid, too, flashes with more luster and fervor, showing better distinction between the various colors than in the HDR10, where it look a bit more misty and cloudy. Rita's rock Putties also show a pinkish purple glow between the cracks, and Alpha 5's swirling eyes reveal small details within the vortex.
Presented in a 2.40:1 aspect ratio, the 2160p video also impresses with a pitch-perfect and brighter contrast, keeping the action and drama endlessly vivid and optimistic. From beginning to end, whites are beaming and wash over every scene with an intense luminosity without hampering other areas of the picture. Specular highlights are phenomenal for a live-action film, providing the Ranger uniforms, Rita's staff and various other metal objects with a more realistic glow and roundness when light bounces off them. And even here, the Dolby Vision shows an improvement as that same glow seems tighter and more controlled, revealing a better outline and definition in those objects. When the sun shines on faces, the furrows and pores remain discrete and are not engulfed by the glow. A good example of this is when the teens finally morph and the intensely bright light of the Grid overwhelms them. In the Dolby Vision, the wrinkles and creases in the clothes are distinct whereas in the HDR10, some of that is sadly lost. Better still, brightness levels deliver even more luxurious, inky-rich blacks, providing the image with gorgeous three-dimensional quality and an appreciable cinematic appeal. Individual black hairs remain separate from each other, the mesh lines in Alpha 5's arms are resolute, and the darkest portions of the frame never ruin the finer details. And again, the opening battle shows Dolby Vision being the winner in this area, as one can better make out the clouds and mountains in the dark background while the debris in the foreground is slightly sharper.
As mentioned in the Blu-ray, the movie was shot on the Red Epic Dragon camera system, capable of up to 6K resolution and later transferred into a 4K digital intermediate, and on Ultra HD, the transfer is delivers razor-sharp definition in the clothing and costumes. Even the threading and stitching in the Power Ranger uniforms are better defined while every smudge of dirt and blemish on Rita Repulsa's surprisingly sparse outfit is made more plainly visible. The tiniest object aboard Zordon's spaceship is resolute and distinct in the distance, the internal wires of Alpha 5's robotic body are clearly delineated, and the lettering on buildings and signs are surprisingly more legible than before. The CG animation is highly detailed even during the craziest action sequences, which are typically done at 2K resolution, but reportedly, the filmmakers shot the superhero actioner with 4K HDR and Dolby Vision in mind. In either case, the little bits of debris are discrete while the oozing lumps of gold in either Rita's staff or Goldar's body come with small cracks and imperfections.
