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Historically ultrawide movie formats have varied between ~2.35 (1678:715), ~2.39 (1024:429) and 2.4. To complicate matters further, films were also produced in following ratios: 2.55, 2.76 and 4. Developed by Rowe E. Carney Jr. and Tom F. Smith, the Smith-Carney System used a 3 camera system, with 4.6945 (1737:370) ratio, to project movies in 180°. Disney even created a 6.85 ratio, using 5 projectors to display 200°. The only movie filmed in Disney's 6.85 ratio is Impressions de France.
In 2016, IMAX announced the release of films in 'Ultra-WideScreen 3.6' format,[failed verification] with an aspect ratio of 18:5 (36:10). A year later, Samsung and Phillips announced 'super ultra-wide displays', with aspect ratio of 32:9, for "iMax-style cinematic viewing". Panacast developed a 32:9 webcam with three integrated cameras giving 180° view, and resolution matching upcoming 5K 32:9 monitors, 5120x1440. In 2018 Q4, Dell released the U4919DW, a 5K 32:9 monitor with a resolution of 5120x1440, and Phillips announced the 499P9H with the same resolution. 32:9 Ultrawide monitors are often sold as an alternative to dual 16:9 monitor setups and for more inmersive experiences while playing videogames, and many are capable of displaying 2 16:9 inputs at the same time.
Aspect ratio is another noticeable feature when switching from a dual monitor setup to an ultrawide monitor, specifically in relation to watching movies. As we mentioned earlier, an ultrawide monitor leverages a 21:9 aspect ratio.
For those comfortable with the ease of managing windows on dual monitors, the Windows Snap feature in Windows 10 implements similar window management functionality that is suitable for an ultrawide monitor. Using Windows Snap, you can easily snap windows to different areas of an ultrawide screen to have windows opened up side by side fairly seamlessly.
We already know both ultrawide and dual monitor setups are an excellent way to boost your editing productivity. When comparing an ultrawide vs. dual monitor setup though, there is some significant quality of life changes that come along with an ultrawide monitor that is unmatchable by dual monitors.
The standard ultra-wide (21:9 aspect ratio) resolutions amount to 3440×1440 or 2560×1080 pixels, which offer extra horizontal space in comparison to their respective 16:9 widescreen resolutions of 2560×1440 and 1920×1080.
Some bigger ultrawide monitors feature even higher screen resolutions such as 3840×1600 and 5120×2160. The latter is considered as 5K ultrawide (and 5K2K or 2160p ultrawide), which is kind of a combination between 4K and ultrawide.
As you can see, both choices have their downsides. The upsides? Watching compatible content at the native resolution. Indeed, with a 21:9 ultrawide display, some movies are closer to their native aspect ratio at which they are shot (2.39:1).
There are plenty of phones out there with ultrawide cameras, but the best of the bunch deliver far more than just a wider field of view. In fact, an ultrawide perspective is only one part of the equation when it comes to delivering a great wide-angle experience.
This wider field of view allows you to cram more into your picture and is also more in line with what your eyes see. Check out the difference between the Samsung Galaxy S23 main (left) and ultrawide shots below.
One downside to ultrawide cameras is that many of them suffer from fish-eye lens distortion. Those with an extremely wide field of view (~120 degrees or higher) usually have more pronounced distortion in this regard. For example, straight lines at the edges of a photo can appear curved, while people on the periphery can look squashed or have abnormally shaped features. Nevertheless, some people like this distortion because it gives images a look akin to a GoPro.
Autofocus on an ultrawide camera also makes for a more flexible camera in general. It allows you to treat the ultrawide lens more like a normal camera, focusing on the foreground or the background as you see fit. Want to take a photo of some flowers with a mountain in the background? Or vice-versa? You can take both if you have autofocus on your wide-angle sensor, as the samples above show.
Having autofocus can also yield better ultrawide images in general, as the camera is able to properly focus on the desired scene instead of just taking a fixed-focus shot that might end up looking soft.
Meanwhile, vivo has adopted a so-called micro-gimbal camera system on the ultrawide camera of some flagships, combining this hardware with smart software to offer even smoother video than Super Steady modes. In fact, several vivo flagships have a so-called Horizon Line stabilization mode that can keep the horizon level even when the phone is tilted by 45 degrees or more.
A simple, highly accurate measurement technique for real-time monitoring of the group delay (GD) profiles of photonic dispersive devices over ultra-broad spectral bandwidths (e.g. an entire communication wavelength band) is demonstrated. The technique is based on time-domain self-interference of an incoherent light pulse after linear propagation through the device under test, providing a measurement wavelength range as wide as the source spectral bandwidth. Significant enhancement in the signal-to-noise ratio of the self-interference signal has been observed by use of a relatively low-noise incoherent light source as compared with the theoretical estimate for a white-noise light source. This fact combined with the use of balanced photo-detection has allowed us to significantly reduce the number of profiles that need to be averaged to reach a targeted GD measurement accuracy, thus achieving reconstruction of the device GD profile in real time. We report highly-accurate monitoring of (i) the group-delay ripple (GDR) profile of a 10-m long chirped fiber Bragg grating over the full C band (~42 nm), and (ii) the group velocity dispersion (GVD) and dispersion slope (DS) profiles of a ~2-km long dispersion compensating fiber module over an ~72-nm wavelength range, both captured at a 15 frames/s video rate update, with demonstrated standard deviations in the captured GD profiles as low as ~1.6 ps. 781b155fdc
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