Image Format Comparison

HEIC vs RAW: iPhone Format vs Camera RAW Compared

HEIC and RAW solve different problems. HEIC is a space-efficient format for finished photographs — excellent quality in a small file, easy to share, but with limited post-processing latitude. RAW (including Apple ProRAW) is an unprocessed sensor dump — massive files with maximum editing flexibility, full dynamic range, and no detail baked out. Which to use depends entirely on how you plan to use your photos.

HEICvsRAW

Quick Verdict

Use HEIC when…

Use HEIC for everyday iPhone photography where storage efficiency and easy sharing matter more than maximum editability.

Use RAW when…

Use RAW (or ProRAW on iPhone 12 Pro+) when you need maximum editing flexibility, HDR capture, or professional-quality output that requires extensive post-processing.

HEIC vs RAW: Feature Comparison

Feature	HEIC	RAW
Compression	Lossy (HEVC-based) — about 50% smaller than JPG at same quality	Uncompressed or losslessly compressed sensor data
Editability	Limited — colour-graded final image, hard to recover shadows/highlights	Maximum — full sensor dynamic range available for editing
File size	2–5 MB per photo	15–80 MB per photo depending on camera
Compatibility	Apple devices + browser converters; poor elsewhere	Requires RAW editing software (Lightroom, Capture One, Photos)
Dynamic range	SDR or HDR (iPhone Smart HDR)	Full sensor dynamic range — maximum HDR capability
iPhone availability	Default camera format since iOS 11	Apple ProRAW available on iPhone 12 Pro and later

When HEIC wins

✓Compression: Lossy (HEVC-based) — about 50% smaller than JPG at same quality
✓Editability: Limited — colour-graded final image, hard to recover shadows/highlights
✓File size: 2–5 MB per photo

When RAW wins

✓Compression: Uncompressed or losslessly compressed sensor data
✓Editability: Maximum — full sensor dynamic range available for editing
✓File size: 15–80 MB per photo depending on camera

Frequently asked questions

What is Apple ProRAW?

Apple ProRAW is Apple's RAW format for iPhone 12 Pro and later, available in the Camera app. Unlike standard RAW from DSLRs, ProRAW applies computational photography processing (Smart HDR, Deep Fusion, Night mode) before saving, then stores the result with RAW-like editing latitude in a DNG-compatible container. It gives much more editing flexibility than HEIC while retaining iPhone's computational photography advantages. File sizes are 25–60 MB per photo vs. 2–5 MB for HEIC.

Should I shoot HEIC or RAW on iPhone?

For most people: HEIC. It produces excellent photos with minimal storage impact and is perfect for everyday social sharing, memories, and casual photography. For photographers who post-process in Lightroom or want maximum editing latitude for professional work: Apple ProRAW. The 10–20× larger file size of ProRAW is only justified if you're actually editing in a RAW editor.

Can I convert HEIC to RAW?

No — this would be a meaningless conversion. HEIC is a processed, lossy image; RAW is unprocessed sensor data. You cannot recover RAW-level editing latitude from a HEIC file by converting it to a .dng or .arw container — the information simply isn't there. The reverse (RAW to HEIC) is possible and means converting the developed RAW to a compressed HEIC file.