The Samsung Galaxy Z Fold 4 (2022) supports Expert RAW in DNG format and has no mechanical shutter — the image counter stored in each DNG file records total electronic captures. Drop an Expert RAW DNG to read it instantly.
Check Image Counter →The Galaxy Z Fold 4 (2022) is powered by the Snapdragon 8+ Gen 1 for Galaxy and features a refined triple-camera system: a 50 MP main sensor (f/1.8, OIS, Dual Pixel PDAF), a 12 MP ultrawide (f/2.2, 123°), and a 10 MP 3× telephoto (f/2.4, OIS). The 7.6-inch QXF AMOLED 2X inner display and 6.2-inch cover display both support 1–120 Hz LTPO adaptive refresh. The Z Fold 4 introduced the Taskbar and improved multitasking UI built around its large inner screen, alongside IPX8 water resistance.
Like all Samsung Galaxy foldables, the Z Fold 4 uses CMOS electronic readout only — there is no mechanical focal-plane shutter. Every image increments the persistent electronic image counter embedded in Expert RAW DNG files.
| Model | Release | Main Sensor | Shutter Type | RAW Format |
|---|---|---|---|---|
| Galaxy Z Fold 4 | 2022 | 50 MP (f/1.8, OIS) | Electronic only | Expert RAW (DNG) |
| Galaxy Z Fold 5 | 2023 | 50 MP (f/1.8, OIS) | Electronic only | Expert RAW (DNG) |
| Galaxy Z Fold 6 | 2024 | 50 MP (f/1.8, OIS) | Electronic only | Expert RAW (DNG) |
.dng extension.The image counter indicates photographic intensity but carries no mechanical wear significance. Foldable-specific checks are more important:
| What to Check | How |
|---|---|
| Inner display crease | Inspect the 7.6-inch inner display for crease depth under direct light; some crease is normal but deep creasing suggests rough use |
| Hinge smoothness | Open and close the device 10–15 times; the hinge should feel consistent and stop firmly at any angle without looseness |
| Battery health | Settings → Battery and device care → Battery. Below 80% warrants replacement consideration |
| Inner display | Check for dead pixels, touch-response issues near the crease, and screen protector condition |
| Camera lenses | Test all three rear cameras and the under-display selfie camera (10 MP, f/2.2); inner screen cameras are a Z Fold 4 exclusive |
| Image counter | High count (>40,000) indicates heavy photographic use — useful context, not a hardware failure indicator |
The Z Fold 5 made one defining change: the Flex hinge allows the device to close completely flat with no gap between the two halves. The Z Fold 4 retains a small gap when folded, making it slightly thicker and less pocketable when closed. Both share identical 50 MP + 12 MP + 10 MP camera hardware and the same Expert RAW DNG image counter format.
The Z Fold 5 also upgrades to the Snapdragon 8 Gen 2 (vs 8+ Gen 1 on the Fold 4) and reduces total weight by about 10 grams. For used buyers, the Fold 4’s lower price can represent excellent value given the near-identical camera output.
No. All Galaxy Z Fold smartphones use CMOS electronic readout. There is no focal-plane shutter and no rated mechanical lifespan.
Open the Galaxy Store, search for Expert RAW, and install it. It is free and exclusive to Samsung Galaxy devices. It integrates with the Camera app’s more modes menu and also runs as a standalone app.
Yes, provided the inner display and hinge are in good condition. Battery health is the primary cost concern. The camera hardware is identical to the Z Fold 5, so photographic performance is unchanged; only the hinge design and chip generation differ.
No. The image counter is stored in persistent hardware memory and cannot be reset by a factory reset, software update, or any user action.
Yes. Any capture — from the rear cameras, the cover selfie camera, or the under-display inner selfie camera — increments the same persistent image counter embedded in DNG files.