Table of Contents
Understanding ProRAW: The Raw Power of Computational Photography
Apple introduced ProRAW with the iPhone 12 Pro series, and it has since become a cornerstone for serious mobile photographers. Unlike standard HEIC or JPEG files, ProRAW captures a 12-bit raw image file that retains significantly more data from the sensor. This means you get the flexibility of a traditional raw file--adjustable white balance, exposure, and color grading--combined with Apple's computational photography magic like Deep Fusion and Smart HDR. The result is a file that gives you the best of both worlds: the convenience of iPhone processing and the editing latitude of raw.
Each ProRAW file is roughly 25 MB, compared to 2-5 MB for a standard HEIC. This larger size is the trade-off for the immense editing flexibility. When you open a ProRAW image in Lightroom or Capture One, you can recover blown-out highlights, lift shadows without introducing noise, and adjust white balance with precision. The file contains a linear DNG (Digital Negative) that maps the full dynamic range of the sensor, which is about 14 stops on recent iPhone Pro models. For photographers who shoot in challenging lighting--backlit portraits, high-contrast landscapes, or mixed indoor lighting--ProRAW is a lifesaver.
ProRAW files capture up to 14 stops of dynamic range, giving you the latitude to recover highlights and shadows that would be lost in standard JPEG or HEIC formats.
However, ProRAW isn't always the right choice. For everyday snapshots, social media posts, or quick sharing, the standard HEIC format is more practical. The processing Apple applies to HEIC files--like automatic white balance, exposure optimization, and noise reduction--often produces a pleasing result straight out of camera. ProRAW requires post-processing, which adds time to your workflow. If you're shooting hundreds of photos at a family gathering, you'll fill your storage quickly and spend hours editing. Reserve ProRAW for images where you need maximum control: professional shoots, fine art, or scenes with extreme lighting conditions.
ProRes Video: Professional-Grade Recording in Your Pocket
ProRes is Apple's professional video codec, and it arrived on iPhone with the iPhone 13 Pro series. Unlike the highly compressed H.264 or H.265 formats that iPhones typically use, ProRes records video with minimal compression, preserving more color information and detail. This makes it ideal for video editors who need to color grade, key out green screens, or composite multiple layers. ProRes comes in several flavors on iPhone: ProRes 422 HQ (highest quality), ProRes 422 (standard), and ProRes 422 LT (lower data rate). The iPhone can record up to 4K at 30 fps in ProRes, though 4K at 60 fps requires external storage due to the massive file sizes.
A single minute of 4K ProRes 422 HQ video consumes about 6 GB of storage. That's roughly 10 times the size of the same video in H.265. This data rate means your iPhone's internal storage fills up fast--a 128 GB iPhone can hold only about 20 minutes of ProRes footage. For this reason, Apple recommends recording ProRes directly to an external SSD via USB-C on iPhone 15 Pro models. The format is also not optimized for direct playback on social media or casual viewing; you'll need to transcode it to a more compressed format for sharing. ProRes is a production format, not a delivery format.
When should you use ProRes? If you're shooting a short film, a commercial, or any project that will go through a professional post-production pipeline, ProRes is the gold standard. It offers 10-bit color depth, which means smoother gradients and more accurate color reproduction than the 8-bit standard. This is crucial for HDR workflows or when you need to push colors in grading without banding. For vlogs, travel videos, or quick social clips, the standard H.265 format is more practical--it's smaller, easier to edit on mobile devices, and looks great for most purposes. ProRes is overkill for content that won't be heavily graded or composited.
Storage and Workflow Considerations for Both Formats
Both ProRAW and ProRes demand significant storage, but the strategies for managing them differ. For ProRAW, you can enable the format in Settings > Camera > Formats and choose between 12 MP and 48 MP resolution (on iPhone 14 Pro and later). The 48 MP ProRAW files are enormous--around 75 MB each--but they offer incredible detail for large prints or heavy cropping. If you're shooting 48 MP ProRAW, plan on transferring files to a computer or cloud storage regularly. A 256 GB iPhone can hold roughly 3,000 48 MP ProRAW images, which sounds like a lot until you shoot a wedding or a day of landscape photography.
For ProRes video, external storage is almost mandatory for serious work. The iPhone 15 Pro's USB-C port supports fast data transfer (up to 10 Gbps), so you can record directly to an external SSD without lag. This bypasses internal storage limitations entirely. When editing, ProRes files are optimized for Apple's Final Cut Pro, DaVinci Resolve, and Adobe Premiere Pro. They decode quickly and scrub smoothly even on modest hardware. ProRAW files, being DNG-based, work seamlessly with Adobe Lightroom, Capture One, and even Apple's own Photos app with third-party extensions. Both formats benefit from a robust backup strategy--consider using a NAS or cloud service like Backblaze or iCloud with optimized storage.
Another workflow tip: use Apple's Shortcuts app to automate file transfers. You can create a shortcut that moves ProRAW images from your iPhone to a specific folder on your Mac or cloud drive when connected to Wi-Fi. Similarly, for ProRes, you can set up automatic import into Final Cut Pro libraries. These small automations save time and reduce the risk of losing files. Remember that both formats are not meant for long-term archival in their raw state--once you've finished editing, export to a compressed format like HEIC or H.265 for storage and sharing, keeping only the raw files for projects that may need future re-edits.
Real-World Scenarios: When to Choose ProRAW vs ProRes
Let's break down specific use cases to help you decide. For still photography, choose ProRAW when: you're shooting in high-contrast light (sunset, backlit subjects), you plan to print large (16x20 inches or bigger), you need to match color across multiple images in a series, or you're shooting for a client who expects raw files. Skip ProRAW for: casual snapshots, quick social media posts, burst shooting (the buffer fills quickly), or when you're low on storage. A good rule of thumb: if you would shoot raw on a DSLR or mirrorless camera, shoot ProRAW on iPhone.
For video, choose ProRes when: you're shooting a narrative film, a commercial, or any project that will be color graded professionally; you need to key out a green screen (ProRes 422 HQ has minimal chroma subsampling); or you're delivering in HDR and need 10-bit color. Skip ProRes for: vlogs, event coverage, interviews that won't be heavily edited, or any content destined for social media without grading. In those cases, H.265 at 4K 60 fps looks excellent and saves enormous amounts of storage. Also consider that ProRes 422 LT offers a good middle ground--it's about 40% smaller than HQ but still retains 10-bit color and professional editing performance.
One emerging use case is hybrid shooting--capturing both ProRAW stills and ProRes video on the same shoot. For example, a real estate photographer might shoot ProRAW images for listing photos and ProRes video for virtual tours. The consistent color science across both formats makes matching the look easier. Similarly, a documentary filmmaker might shoot ProRes for interviews and ProRAW for b-roll stills that can be used in the edit. The key is to plan your storage and workflow ahead of time. With the right setup--external SSD for video, cloud backup for photos--you can leverage both formats without running into bottlenecks.
Conclusion: Matching the Format to the Task
Apple's ProRAW and ProRes formats are powerful tools, but they're not for every situation. The decision comes down to your end goal: if you need maximum editing flexibility for still images, ProRAW is the clear choice. If you're producing video that will go through a professional post-production pipeline, ProRes is unmatched. For everything else--social media, family memories, quick sharing--the standard HEIC and H.265 formats are more than adequate and far more practical.
As storage becomes cheaper and iPhones continue to improve their computational photography, the gap between professional and consumer formats will narrow. But for now, understanding when to use these formats separates a casual shooter from a serious creator. Start by experimenting with ProRAW on a single shoot--a landscape at golden hour, for example--and compare the editing latitude against a standard HEIC. For video, try recording a short clip in ProRes 422 LT and see how it handles in your editing software. You'll quickly appreciate the difference, and you'll know exactly when to reach for these professional tools.