Show HN:iPhone 应用可同时调用两个镜头拍摄,并合成为一张照片
Show HN: iPhone app takes simultaneous images from 2 lenses, fuses into 1 photo

原始链接: https://photosynthesis.camera

**Photosynthesis 应用摘要** Photosynthesis 适用于配备双镜头或三镜头系统的 iPhone(iPhone 11 及后续机型)。该应用使用机器学习(而非生成式 AI)来合并真实相机的像素,以实现最大程度的细节呈现,确保每张图像均为真实拍摄。 为保持高质量,该应用限制了数码变焦和手动对焦功能,因为这些功能会干扰多镜头之间的精确对齐。为获得最佳拍摄效果,用户应避免进行极近距离拍摄,因为物理镜头之间的间距会导致对齐困难;不过,如果对齐失败,用户仍可导出单个镜头的原始影像。 拍摄的照片存储在应用内,支持 iCloud 备份并可自动导出至“照片”应用。虽然拍摄和编辑功能不受限制,但免费用户每月仅限导出三张照片。如需更多帮助或提供反馈,用户可通过应用内设置或发送邮件至 [email protected] 直接联系支持团队。

最近一篇“Show HN”帖子介绍了一款名为 **photosynthesis.camera** 的 iPhone 应用。该应用能同时调用两个镜头拍摄图像,并将它们融合成一张高质量的照片。 Hacker News 社区对此反应不一。虽然一些用户对底层的技术表示赞赏,认为其有提升分辨率的潜力,但这种评价被怀疑态度所抵消。许多评论者对该应用采用 SaaS(订阅制)商业模式感到不满,称订阅制相机应用简直是“荒谬至极”。 技术反馈指出,与标准 iPhone 拍照相比,该应用在色温和对比度上存在不一致。其他人则注意到成片质量参差不齐,部分对比显示其清晰度甚至不如原生相机。尽管反响平平,但一些用户对开发者展示对比图的透明度表示认可,即便该应用的输出结果并未明显优于原生相机。用户还在询问其是否有 Android 版本,并质疑图像处理过程中的折衷与取舍。
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原文
Which iPhone models are supported?

Every iPhone with 2 or 3 lenses on the back from the iPhone 11 onwards is officially supported. iPhones with 2 lenses can combine both of those lenses into one image, while iPhones with 3 lenses can choose which pair they want to combine, or combine all three (currently in beta).

Is the detail created by AI?

There is no generative AI use in Photosynthesis. We do use machine learning to calculate the best alignment and colour match between the lens captures, but every pixel of detail comes from a photo taken by your camera.

Why can’t I zoom in the viewfinder?

Photosynthesis is designed to capture the most detail possible for every photo, without compromising with digital zoom. Keeping the image ‘zoomed out’ helps to frame your subject correctly for the full set of lenses. You can then focus in by cropping the photo once it has been processed.

Can I set focus manually?

The app defaults to focus in the centre of the viewfinder to optimise for the alignment of both lenses. A manual focus control would fight against this alignment.

Does it work up close?

Because the lenses are physically separate on your phone, the closer you are to the subject, the harder the two photos are to align. If they don’t align properly, you can always export the image from each lens on its own.

Where are my photos saved?

Every photo is kept inside the app so nothing is lost while the app is still installed. You can optionally backup to iCloud and/or a folder of your choosing, and you can auto-export every photo to the Photos app, as well as manually export in a number of different formats.

Why can’t I export any more photos?

Free users can export 3 photos a month. Capturing, editing and viewing photos in the app are unlimited — the limit only applies to exporting a photo outside of Photosynthesis.

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