前段时间一篇著名的图片畸变畸变矫正应用 SKRWT 对 iPhone 历代相机的对比评测文。让我们更加直观的了解 iPhone 4s 到 6s+ 拍摄效果的变化。普通人也能很容易的看出来到底谁更胜一筹。由于测试者认为上一次的评测环境不能足够客观地反应已有结论，决定重新补充评测一次。当然，这并不代表对上一次得出结论的完全否定，仅相当于对已有结论的完善。
全文采用中英对照编译，部分内容为更好理解进行了适当演绎。
After posting "The Big iPhone Camera Comparison" I didn’t felt like I gave the 6s and 6s+ the right playground to prove themselves. This time I’ve used a tripod and went to Rotterdam, NL with all devices for a more realistic shooting surrounding.
在上一篇文章发布之后，我的内心是纠结的。因为我感觉拍摄时并没有找到能足够客观反映出 6s 和 6s+ 相机实力的环境。于是，我带上了所有的 iPhone 及三脚架，跑到了荷兰的鹿特丹来测试，就是为了找一个更加客观合理的拍摄场景。
注：这篇文章中你看到的所有照片均由 iPhone 拍摄，文末提供了所有原片(ZIP 压缩包)用于下载。
对比测试
1，High contrast – 100% and unedited – shot using a tripod
This shot has been a tricky one. The bright white bridge and a partly cloudy sky were a good challenge to show the phones’ dynamic range capabilities. The 4s image came out pretty grainy, the 5s did a decent job and starting with the 6 the images started looking better. 6+ a bit sharper than the 6 – the 6s and 6s+ winning this comparison due to the megapixel advantage and as already mentioned in the previous comparison: the new iPhones’ pictures are warmer right out of the box.
iPhone 6s 拍摄|后期应用: SKRWT, SNAPSEED, VSCO
第一组：高对比度 – 放大到 100% 显示，使用三脚架拍摄但未进行后期编辑
这个场景其实不怎么好拍。斜拉桥是白色的，而其身后又有一大片白色的云层，所以对手机相机的动态范围表现是极大的考验。4s 拍出来的照片看起来噪点比较明显，5s 的表现还行。从 6 系列开始就明显好了很多，6+ 拍出来的效果比 6 要锐利一些。至于 6s 和 6s+，由于像素方面的提升，顺理成章的获得了这一轮对比测试的冠军。看完这一组照片，，也印证了之前的结论，那就是 6s 和 6s+ 拍出来的照片更偏暖色调。
2，Skin – 100% and unedited – shot using a tripod
This may be every smartphones masterclass – portraits and skin-tones. We found a good spot with nice soft light and the 6s and especially the 6s+ did the best job. Better contrast and more detailed, but the 6+ kept up very well. I don’t know what happened with the 6 though, the images I shot at this spot were not on point – the 5s had no problems and lets not talk about the 4s anymore.
iPhone 6s 拍摄|后期应用: SKRWT, SNAPSEED, VSCO
第二轮：人像皮肤 – 放大到 100% 显示，使用三脚架拍摄但未进行后期编辑
对于每一款智能手机而言，肖像摄影及还原出真实完美的肤色是必须好好解决的大问题。为此，我们精心寻找到一个光线温和的拍摄场所。整个拍摄下来，6s 和 6s+ 果然不负众望，表现出了更加出色的对比度且呈现出更为完美的细节。6+ 在这一轮的拍摄中的表现也不赖。我不太明白在 6 身上发生了什么，没有达到我的预期效果。5s 表现只能算勉强，至于 4s 已经没继续谈论的必要了。
3，Underground – 100% and unedited – shot using a tripod
Rotterdam does have a nice underground system which was perfect for our third test. The 5s has an overall decent noise handling, but couldn’t keep up with the other phones. Beginning with the 6 everything started looking crisper. It’s a head to head race between the 6s+ and the 6+ at the end – the 6s can’t quite match their level of detail.
iPhone 6s+ 拍摄|后期应用: SKRWT, SNAPSEED, VSCO
第三轮：地下摄影 – 放大到 100% 显示，使用三脚架拍摄但未进行后期编辑
鹿特丹出众的地下运输系统为我们的第三轮测试提供了合适的场地。5s 在噪点控制方面总体良好，但是和其他的对比来看还是有差距的。从 6 开始，一切表现的都较为满意了。从 6+ 到 6s+，整体水平稳步上升。但是在我看来，6s 并没有达到它应有的水平。
4，Underground – 100% and unedited – handheld but stabilized
Hands and pants down- the 6s+ smashed everything in this shot – it took an image so much brighter and gave me a little "wow" moment. The 6s could not catch me as much as the 6+ and the 6 got the least good noise handling of the 6-series, but managed to snap a crips image.
iPhone 6s+ 拍摄|后期应用: SKRWT, SNAPSEED, VSCO
第四轮：地下摄影 – 放大到 100% 显示，手持拍摄但未进行后期编辑
一直想去旅行，去很美很美的地方，但往往真正踏足想去的地方，
