如果您有任何较新的 iPhone，您可能已经注意到，当您使用相机拍照时，图像两侧总是有黑条。iPhone 屏幕(iPhone screen)的宽高比(aspect ratio)与照片不同，因此图像不会(image doesn)填满整个屏幕。
对于像我这样的人来说，这真的很烦人。是的， Apple(Apple)这样做的方式有很多优点，我将在下面解释，但我仍然无法在我的 iPhone 上享受全宽屏拍摄，这仍然令人沮丧。(widescreen shot)
幸运的是，您可以通过多种方式在 iPhone 上以宽屏格式拍摄和查看已拍摄的照片。在这篇文章中，我将向您展示如何编辑照片以便它们可以是宽屏的，以及如何在宽屏中拍摄照片，尽管后一种选择带有一些警告。
纵横比
在我们进入细节之前，让我们试着理解为什么在 iPhone 上拍摄的照片会在照片的两侧出现如下图所示的黑条：
iPhone 以 4:3 的纵横比拍摄照片。为什么？好吧，显然这是静态摄影中的首选比例，因为它可以捕获图片中的更多像素，并且是打印等的首选格式。如果他们对照片使用 16:9 的比例，那么您将无法在每个镜头中捕获尽可能多的内容。
你有没有注意到当你在 iPhone 上从照片切换到视频时，相机会放大(camera zooms)？这是因为高清视频(HD video)是以 16:9 的纵横比(aspect ratio)拍摄的，因此会填满整个屏幕。缺点是必须裁剪镜头并且视野要小得多。
在我看来，Apple应该添加一个选项来拍摄 16:9 的照片，并且只是警告用户分辨率将低于 4:3比例图片(ratio picture)的最大分辨率。在我的测试中，我的iPhone 6S Plus的 4:3 格式照片的最大分辨率(resolution photo)为 4032 x 3024。
在 iOS 中，有两种方法可以让你的照片变成 16:9 的宽屏比例：编辑照片或在拍摄视频时拍照。如果您编辑 4:3 照片并将其转换为 16:9，则生成的分辨率为 4032 x 2268。如果您在拍摄视频时拍摄 16:9 的照片，则分辨率最终为 3840×2160。
那是什么意思？基本上(Basically)，如果你喜欢宽屏格式，只需继续以标准 4:3 比例拍摄照片，然后像我上面所做的那样稍后将它们编辑为 16:9。您必须稍微裁剪图像（高度），但您将获得最高分辨率的照片(resolution photo)。
iPhone 上的宽屏图像
好的，现在您已经了解了照片拍摄和显示在手机上的机制，让我们来谈谈获取宽屏照片的两种方法。第一种方法是最简单的，但它需要您拍摄视频。
打开相机(Camera) 应用程序并切换(app and switch)到视频。当您开始拍摄视频时，您会看到 屏幕底部出现一个白色圆圈。(circle appear)这使您可以在录制视频时拍照。
这不是获得宽屏照片的最佳方式有几个原因。首先，您必须拍摄视频才能拍摄宽屏照片。显然，您可以稍后删除视频，但是谁愿意每次要拍照时都继续拍摄视频？
其次，就像我之前提到的，在相机模式下(camera mode)拍摄的照片的分辨率低于您简单地编辑 4:3 标准照片时的分辨率。那么让我们来谈谈如何编辑照片。打开照片(Photos) 应用程序，然后点击(app and tap)要编辑的照片。
在右上角，继续并点击编辑(Edit)链接。
现在点击顶部的第一个图标，用于旋转和裁剪图像。
将出现更多图标以及可用于旋转图像的轮子。(wheel sort)在我们的例子中，我们需要点击底部的纵横比按钮，就在(aspect ratio button)取消(Cancel)按钮旁边。
现在，您将看到一个弹出窗口，其中有几种不同的纵横比可供选择。您需要一直向下滚动以找到16:9的比例并点击它。
最后，您必须通过用手指四处移动来裁剪图像。盒子内的部分将成为您的新宽屏照片。
点击完成(Done)，您的照片现在将采用宽屏格式！这就是它的全部内容。不幸的是，没有办法一次性对一批或一组(batch or set)照片执行此操作。您必须以宽屏格式手动编辑您想要的每张照片。
相机+
如果这听起来太痛苦了，那么您可以从App Store下载一个名为Camera+的应用程序。您可以将拍摄模式(shooting mode)更改为 16:9，并将图像自动存储在普通相机胶卷(camera roll)中。
只需点击大白色圆圈按钮(circle button)旁边的小加号图标，然后在弹出的菜单中选择宽屏图标。要将图像保存到相机胶卷(camera roll)，请点击小汉堡图标(hamburger icon)（三行），然后点击自动保存(AutoSave)并选择相机胶卷( Camera Roll)。
这可能是确保所有照片都以宽屏格式拍摄而无需手动执行任何其他操作的最简单方法。图像的分辨率也是 4032×2268，因此它也是该格式可能的最大分辨率。(max resolution)您可以使用该应用程序做很多其他很棒的事情，因此如果您一直喜欢宽屏图像，那么这完全值得。
希望这些提示能帮助您了解和欣赏您在 iPhone 上拍摄的照片。如果您有任何问题，请随时发表评论。享受！
How to View & Take Photos in Widescreen (16:9) on iPhone
If you havе any of the newer iPhоnes, уou have probably noticed thаt when you take а picture with the camera, it always has black bars on either side of the image. The iPhone screen has differеnt asрeсt ratio than the photo and therefore the image doesn’t fill up the entire screen.
For someone like me, this is just really an annoyance. Yes, there are advantages to the way Apple does it, which I will explain below, but it is still frustrating that I can’t enjoy a full widescreen shot on my iPhone.
Luckily, there are a couple of ways you can take and view your already taken photos in widescreen format on the iPhone. In this post, I’ll show you how to edit photos so that they can be widescreen and how to take a photo in widescreen, though the latter option comes with some caveats.
Aspect Ratios
Before we get into the details, let’s try to understand why photos taken on the iPhone will have black bars on either side of the photo like shown below:
The iPhone takes photos with an aspect ratio of 4:3. Why? Well, apparently that is the preferred ratio in still photography because it captures more pixels in the picture and is the preferred format for print, etc. If they were to use a 16:9 ratio for photos, then you wouldn’t be able to capture as much in each shot.
Have you ever noticed that when you switch from photo to video on the iPhone, the camera zooms in? That is because HD video is shot at the 16:9 aspect ratio and therefore fills up the entire screen. The downside is that the shot has to be cropped and the field of view is considerably less.
In my opinion, Apple should have added an option to take 16:9 photos also and just given a warning to users that the resolution would be less than the max resolution possible with a 4:3 ratio picture. In my tests, a max resolution photo in 4:3 format from my iPhone 6S Plus was 4032 x 3024.
In iOS, there are two ways to get your photos into 16:9 widescreen ratio: either by editing the photo or by taking a picture while you are taking a video. If you edit a 4:3 photo and convert it to 16:9, the resulting resolution is 4032 x 2268. If you take a 16:9 photo while taking a video, the resolution ends up being 3840×2160.
So what does that mean? Basically, if you like the widescreen format, just keep taking photos in the standard 4:3 ratio and simply edit them to 16:9 at a later point like I did above. You’ll have to crop the image a little bit (height-wise), but you’ll get the highest resolution photo.
Widescreen Images on iPhone
OK, so now that you understand the mechanics behind how the photos are taken and displayed on your phone, let’s talk about the two ways to get widescreen photos. The first way is the simplest, but it requires you to take a video.
Open the Camera app and switch to video. When you start taking a video, you’ll see a white circle appear at the bottom of the screen. This allows you to take a picture while recording a video.
There are a couple of reasons why this isn’t the best way to get a widescreen photo. Firstly, you have to take a video in order to take the widescreen shot. Obviously, you can just delete the video later, but who wants to keep taking videos every time they want to take a photo?
Secondly, like I mentioned earlier, the resolution of the photo taken while in camera mode is less than if you simply edited the 4:3 standard photo. So let’s talk about how to edit a photo. Open the Photos app and tap on the photo you want to edit.
At the top right, go ahead and tap on the Edit link.
Now tap on the first icon towards the top, which is for rotating and cropping the image.
A few more icons will appear along with a wheel sort of thing that you can use to rotate the image. In our case, we need to tap on the aspect ratio button at the bottom, right next to the Cancel button.
Now you’ll get a popup with several different aspect ratios to choose from. You need to scroll all the way down to find the 16:9 ratio and tap on it.
Finally, you have to crop the image by moving it around with your finger. The portion that is inside the box is what will become your new widescreen photo.
Tap Done and your photo will now be in widescreen format! That’s about all there is to it. Unfortunately, there is no way to do this on a batch or set or photos in one go. You have to manually edit each photo that you want in widescreen format.
Camera+
If that sounds like too much of a pain, then you can download an app from the App Store called Camera+. You can change the shooting mode to 16:9 and have the images automatically stored in the normal camera roll.
Just tap on the little plus icon next to the big white circle button and then choose the widescreen icon in the menu that pops out. To save images to your camera roll, tap on the little hamburger icon (three lines), then tap on AutoSave and choose Camera Roll.
This is probably the easiest way to ensure that all your photos are taken in widescreen format without having to manually do anything else. The resolution of the image was also 4032×2268, so it’s also the max resolution possible in that format. You can do a lot of other great stuff with that app, so it’s totally worth the cost if you like widescreen images all the time.
Hopefully, these tips will help you understand and enjoy the photos you take on your iPhone. If you have any questions, feel free to comment. Enjoy!
