[Bug]: Uploading large .dng RAW images succeeds, but gives error 500 via iOS client and server log indicates TypeError strlen(): Argument #1 ($string) must be of type string, false given Uncaught exception

[NCfeedback]

⚠️ This issue respects the following points: ⚠️

• This is a bug, not a question or a configuration/webserver/proxy issue.
• This issue is not already reported on Github OR Nextcloud Community Forum (I've searched it).
• Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
• I agree to follow Nextcloud's Code of Conduct.

Bug description

Full server below log after uploading 75mb .dng photos both manually and automatically with iOS client on iPad and iOS both on 26.5.2, NC Server 24.0.1, iOS client 33.1.09:

Steps to reproduce

1. Upload image via iOS client manually or automatically, file completes and appears but does not show successful

Expected behavior

I was able to add this line:
if ($json === false) { $json = '{}'; }
Above line 167 in:
private/FilesMetadata/FilesMetadataManager.php
And achieve results, however not sure this is the correct answer for future releases

Nextcloud Server version

34

Operating system

Debian/Ubuntu

PHP engine version

PHP 8.5

Web server

Apache (supported)

Database engine version

MariaDB

Is this bug present after an update or on a fresh install?

Upgraded to a MAJOR version (ex. 31 to 32)

Are you using the Nextcloud Server Encryption module?

Encryption is Disabled

What user-backends are you using?

• Default user-backend (database)
• LDAP/ Active Directory
• SSO - SAML
• Other

Configuration report

{
    "system": {
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "serverid": "1",
        "trusted_domains": [
            "localhost",
            "192.*.*.*",
            "Mydomain1",
            "10.*.*.*",
            "Mydomain2",
            "Mydomain3",
        ],
        "enable_previews": true,
        "enabledPreviewProviders": [
            "OC\\Preview\\Movie",
            "OC\\Preview\\PNG",
            "OC\\Preview\\JPEG",
            "OC\\Preview\\GIF",
            "OC\\Preview\\BMP",
            "OC\\Preview\\XBitmap",
            "OC\\Preview\\MP3",
            "OC\\Preview\\MP4",
            "OC\\Preview\\TXT",
            "OC\\Preview\\MarkDown",
            "OC\\Preview\\PDF",
            "OC\\Preview\\HEIC",
            "OC\\Preview\\HEIF",
            "OC\\Preview\\DNG",
            "OC\\Preview\\MOV",
            "OC\\Preview\\X-DCRaw",
            "OC\\Preview\\Imagick",
            "OC\\Preview\\x-adobe-dng",
            "OC\\Preview\\tiff"
        ],
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "tempdirectory": "\/mnt\/f\/nextcloud\/TempDownloads",
        "dbtype": "mysql",
        "version": "34.0.1.2",
        "overwrite.cli.url": "https:\/\/Mydomain1",
        "overwriteprotocol": "https",
        "htaccess.RewriteBase": "\/",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbport": "",
        "dbdriveroptions": {
            "2": 2,
            "1002": "SET NAMES utf8mb4"
        },
        "dbtableprefix": "oc_",
        "mysql.utf8mb4": true,
        "backgroundjobs_mode": "cron",
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "davstorage.request_timeout": 30,
        "session_relaxed_expiry": true,
        "session_keepalive": true,
        "installed": true,
        "check_data_directory_permissions": false,
        "filelocking.enabled": true,
        "maintenance": false,
        "bulkupload.enabled": false,
        "trashbin_retention_obligation": "auto, 10",
        "default_phone_region": "US",
        "memcache.distributed": "\\OC\\Memcache\\Redis",
        "memcache.local": "\\OC\\Memcache\\Redis",
        "memcache.locking": "\\OC\\Memcache\\Redis",
        "localstorage.umask": 2,
        "redis": {
            "host": "***REMOVED SENSITIVE VALUE***",
            "port": 6379,
            "timeout": 30,
            "read_timeout": 30
        },
        "mail_smtpmode": "smtp",
        "mail_sendmailmode": "smtp",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpauthtype": "LOGIN",
        "mail_smtpauth": 1,
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpsecure": "tls",
        "mail_smtpport": "587",
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
        "app_install_overwrite": {
            "0": "vibeetoee",
            "1": "ransomware_protection",
            "2": "news",
            "3": "memories",
            "4": "end_to_end_encryption",
            "5": "maps",
            "6": "phonetrack",
            "8": "camerarawpreviews"
        },
        "theme": "",
        "loglevel": 1,
        "log_rotate_size": 10485760,
        "twofactor_enforced": "true",
        "twofactor_enforced_groups": [
            "admin",
            "Family",
            "Cars"
        ],
        "twofactor_enforced_excluded_groups": [],
        "memories.vod.path": "\/var\/www\/html\/nextcloud\/apps\/memories\/bin-ext\/go-vod-amd64",
        "memories.vod.ffmpeg": "\/usr\/bin\/ffmpeg",
        "memories.vod.ffprobe": "\/usr\/bin\/ffprobe",
        "memories.exiftool": "\/var\/www\/html\/nextcloud\/apps\/memories\/bin-ext\/exiftool-amd64-glibc",
        "memories.index.mode": "3",
        "memories.index.path": "\/Photos",
        "maintenance_window_start": 1,
        "data-fingerprint": "e79ee7eac4b332f0c6ac1b6314188c52",
        "memories.db.triggers.fcu": true,
        "mimetypealiases": {
            "image\/x-dcraw": "image"
        },
        "dbhost": "***REMOVED SENSITIVE VALUE***"
    }
}

List of activated Apps

Enabled:
  - activity: 7.0.0
  - admin_audit: 1.24.0
  - app_api: 34.0.0
  - appstore: 1.0.0
  - audioplayer: 3.9.0
  - bruteforcesettings: 7.0.0
  - calendar: 6.5.0
  - camerarawpreviews: 1.1.1
  - circles: 34.0.0
  - cloud_federation_api: 1.18.0
  - comments: 1.24.0
  - contacts: 8.7.3
  - contactsinteraction: 1.15.0
  - dashboard: 7.14.0
  - dav: 1.39.0
  - end_to_end_encryption: 2.2.0
  - external: 9.0.1
  - federatedfilesharing: 1.24.0
  - files: 2.6.0
  - files_downloadlimit: 5.2.0-dev.0
  - files_external: 1.26.0
  - files_lock: 34.0.0
  - files_pdfviewer: 7.0.0-dev.0
  - files_sharing: 1.26.0
  - files_trashbin: 1.24.0
  - firstrunwizard: 7.0.0-dev.0
  - groupfolders: 22.0.2
  - logreader: 7.0.0
  - lookup_server_connector: 1.22.0
  - mail: 5.10.7
  - memories: 8.1.0
  - music: 3.1.0
  - nextcloud_announcements: 6.0.0
  - notifications: 7.0.0-dev.1
  - notify_push: 1.3.3
  - oauth2: 1.22.0
  - office: 1.0.0
  - phonetrack: 1.2.0
  - photos: 7.0.0
  - polls: 9.1.4
  - previewgenerator: 5.14.0
  - privacy: 6.0.0-dev.1
  - profile: 1.3.0
  - provisioning_api: 1.24.0
  - recognize: 12.0.0
  - registration: 3.0.0
  - related_resources: 5.0.0-dev.0
  - serverinfo: 6.0.0
  - settings: 1.17.0
  - sharebymail: 1.24.0
  - spreed: 24.0.2
  - support: 6.0.0
  - systemtags: 1.24.0
  - text: 8.0.0
  - theming: 2.9.0
  - twofactor_backupcodes: 1.23.0
  - twofactor_totp: 16.0.0
  - twofactor_webauthn: 2.7.0
  - updatenotification: 1.24.0
  - user_status: 1.14.0
  - viewer: 7.0.0-dev.0
  - weather_status: 1.14.0
  - workflowengine: 2.16.0
Disabled:
  - assistant: 3.4.3 (installed 3.4.3)
  - bookmarks: 16.2.2 (installed 16.2.2)
  - drawio: 4.2.5 (installed 4.2.5)
  - encryption: 2.22.0
  - federation: 1.24.0 (installed 1.22.0)
  - files_accesscontrol: 5.0.0 (installed 5.0.0)
  - files_reminders: 1.7.0 (installed 1.4.0)
  - files_versions: 1.27.0 (installed 1.25.0)
  - htmlviewer: 34.0.0 (installed 34.0.0)
  - impersonate: 5.0.0 (installed 5.0.0)
  - integration_homeassistant: 0.0.8 (installed 0.0.7)
  - integration_openai: 4.5.1
  - metadata: 0.23.0 (installed 0.24.0)
  - news: 28.6.0 (installed 28.6.0)
  - password_policy: 6.0.0-dev.0 (installed 1.18.0)
  - ransomware_protection: 1.14.0 (installed 1.14.0)
  - recommendations: 7.0.0 (installed 5.0.0-dev.0)
  - richdocuments: 11.0.0 (installed 11.0.0)
  - sendent: 4.3.1 (installed 4.3.1)
  - side_menu: 5.3.0 (installed 5.3.0)
  - survey_client: 6.0.0-dev.0 (installed 4.0.0-dev.0)
  - suspicious_login: 12.0.0-dev.0 (installed 5.0.0)
  - testing: 1.23.0
  - theming_customcss: 1.20.0 (installed 1.20.0)
  - twofactor_nextcloud_notification: 8.0.0
  - user_ldap: 1.25.0
  - user_usage_report: 5.0.0 (installed 5.0.0)
  - webhook_listeners: 1.6.0 (installed 1.1.0-dev)

Nextcloud Signing status

No errors have been found

Nextcloud Logs

{"reqId":"C4XJzVSQ8DKH9ZA2RXRz","level":3,"time":"2026-07-14T13:01:22+00:00","remoteAddr":"192.168.1.244","user":"user","app":"no app in context","method":"PUT","url":"/remote.php/dav/files/user/Photos/2026/07/photo_name.dng","scriptName":"/remote.php","message":"Uncaught exception","userAgent":"Mozilla/5.0 (iOS) Nextcloud-iOS/33.1.0","version":"34.0.1.2","exception":{"Exception":"TypeError","Message":"strlen(): Argument #1 ($string) must be of type string, false given","Code":0,"Trace":[{"file":"/var/www/html/nextcloud/lib/private/FilesMetadata/FilesMetadataManager.php","line":167,"function":"strlen"},{"file":"/var/www/html/nextcloud/lib/private/FilesMetadata/FilesMetadataManager.php","line":102,"function":"saveMetadata","class":"OC\\FilesMetadata\\FilesMetadataManager","type":"->"},{"file":"/var/www/html/nextcloud/lib/private/FilesMetadata/Listener/MetadataUpdate.php","line":43,"function":"refreshMetadata","class":"OC\\FilesMetadata\\FilesMetadataManager","type":"->"},{"file":"/var/www/html/nextcloud/lib/private/EventDispatcher/ServiceEventListener.php","line":57,"function":"handle","class":"OC\\FilesMetadata\\Listener\\MetadataUpdate","type":"->"},{"file":"/var/www/html/nextcloud/3rdparty/symfony/event-dispatcher/EventDispatcher.php","line":220,"function":"__invoke","class":"OC\\EventDispatcher\\ServiceEventListener","type":"->"},{"file":"/var/www/html/nextcloud/3rdparty/symfony/event-dispatcher/EventDispatcher.php","line":56,"function":"callListeners","class":"Symfony\\Component\\EventDispatcher\\EventDispatcher","type":"->"},{"file":"/var/www/html/nextcloud/lib/private/EventDispatcher/EventDispatcher.php","line":73,"function":"dispatch","class":"Symfony\\Component\\EventDispatcher\\EventDispatcher","type":"->"},{"file":"/var/www/html/nextcloud/lib/private/EventDispatcher/EventDispatcher.php","line":86,"function":"dispatch","class":"OC\\EventDispatcher\\EventDispatcher","type":"->"},{"file":"/var/www/html/nextcloud/lib/private/Files/Node/HookConnector.php","line":83,"function":"dispatchTyped","class":"OC\\EventDispatcher\\EventDispatcher","type":"->"},{"file":"/var/www/html/nextcloud/lib/private/legacy/OC_Hook.php","line":87,"function":"postWrite","class":"OC\\Files\\Node\\HookConnector","type":"->"},{"file":"/var/www/html/nextcloud/apps/dav/lib/Connector/Sabre/File.php","line":459,"function":"emit","class":"OC_Hook","type":"::"},{"file":"/var/www/html/nextcloud/apps/dav/lib/Connector/Sabre/File.php","line":394,"function":"emitPostHooks","class":"OCA\\DAV\\Connector\\Sabre\\File","type":"->"},{"file":"/var/www/html/nextcloud/apps/dav/lib/Connector/Sabre/File.php","line":338,"function":"finalizeUpload","class":"OCA\\DAV\\Connector\\Sabre\\File","type":"->"},{"file":"/var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":1137,"function":"put","class":"OCA\\DAV\\Connector\\Sabre\\File","type":"->"},{"file":"/var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php","line":492,"function":"updateFile","class":"Sabre\\DAV\\Server","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php","line":89,"function":"httpPut","class":"Sabre\\DAV\\CorePlugin","type":"->"},{"file":"/var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":472,"function":"emit","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/var/www/html/nextcloud/apps/dav/lib/Connector/Sabre/Server.php","line":215,"function":"invokeMethod","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/var/www/html/nextcloud/apps/dav/lib/Server.php","line":430,"function":"start","class":"OCA\\DAV\\Connector\\Sabre\\Server","type":"->"},{"file":"/var/www/html/nextcloud/apps/dav/appinfo/v2/remote.php","line":25,"function":"exec","class":"OCA\\DAV\\Server","type":"->"},{"file":"/var/www/html/nextcloud/remote.php","line":152,"args":["/var/www/html/nextcloud/apps/dav/appinfo/v2/remote.php"],"function":"require_once"}],"File":"/var/www/html/nextcloud/lib/private/FilesMetadata/FilesMetadataManager.php","Line":167,"message":"Uncaught exception","exception":"{\"class\":\"TypeError\",\"message\":\"strlen(): Argument #1 ($string) must be of type string, false given\",\"code\":0,\"file\":\"/var/www/html/nextcloud/lib/private/FilesMetadata/FilesMetadataManager.php:167\",\"trace\":\"#0 /var/www/html/nextcloud/lib/private/FilesMetadata/FilesMetadataManager.php(167): strlen()\\n#1 /var/www/html/nextcloud/lib/private/FilesMetadata/FilesMetadataManager.php(102): OC\\FilesMetadata\\FilesMetadataManager->saveMetadata()\\n#2 /var/www/html/nextcloud/lib/private/FilesMetadata/Listener/MetadataUpdate.php(43): OC\\FilesMetadata\\FilesMetadataManager->refreshMetadata()\\n#3 /var/www/html/nextcloud/lib/private/EventDispatcher/ServiceEventListener.php(57): OC\\FilesMetadata\\Listener\\MetadataUpdate->handle()\\n#4 /var/www/html/nextcloud/3rdparty/symfony/event-dispatcher/EventDispatcher.php(220): OC\\EventDispatcher\\ServiceEventListener->__invoke()\\n#5 /var/www/html/nextcloud/3rdparty/symfony/event-dispatcher/EventDispatcher.php(56): Symfony\\Component\\EventDispatcher\\EventDispatcher->callListeners()\\n#6 /var/www/html/nextcloud/lib/private/EventDispatcher/EventDispatcher.php(73): Symfony\\Component\\EventDispatcher\\EventDispatcher->dispatch()\\n#7 /var/www/html/nextcloud/lib/private/EventDispatcher/EventDispatcher.php(86): OC\\EventDispatcher\\EventDispatcher->dispatch()\\n#8 /var/www/html/nextcloud/lib/private/Files/Node/HookConnector.php(83): OC\\EventDispatcher\\EventDispatcher->dispatchTyped()\\n#9 /var/www/html/nextcloud/lib/private/legacy/OC_Hook.php(87): OC\\Files\\Node\\HookConnector->postWrite()\\n#10 /var/www/html/nextcloud/apps/dav/lib/Connector/Sabre/File.php(459): OC_Hook::emit()\\n#11 /var/www/html/nextcloud/apps/dav/lib/Connector/Sabre/File.php(394): OCA\\DAV\\Connector\\Sabre\\File->emitPostHooks()\\n#12 /var/www/html/nextcloud/apps/dav/lib/Connector/Sabre/File.php(338): OCA\\DAV\\Connector\\Sabre\\File->finalizeUpload()\\n#13 /var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php(1137): OCA\\DAV\\Connector\\Sabre\\File->put()\\n#14 /var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php(492): Sabre\\DAV\\Server->updateFile()\\n#15 /var/www/html/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php(89): Sabre\\DAV\\CorePlugin->httpPut()\\n#16 /var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php(472): Sabre\\DAV\\Server->emit()\\n#17 /var/www/html/nextcloud/apps/dav/lib/Connector/Sabre/Server.php(215): Sabre\\DAV\\Server->invokeMethod()\\n#18 /var/www/html/nextcloud/apps/dav/lib/Server.php(430): OCA\\DAV\\Connector\\Sabre\\Server->start()\\n#19 /var/www/html/nextcloud/apps/dav/appinfo/v2/remote.php(25): OCA\\DAV\\Server->exec()\\n#20 /var/www/html/nextcloud/remote.php(152): require_once('...')\\n#21 {main}\"}","CustomMessage":"Uncaught exception"},"id":"6a563715c6e09"}

Additional info

No response

[joshtrichards]

It's likely an invalid metadata string (I.e. invalid UTF-8), but yeah we should handle this better. We also should probably also audit the code base and retrofit the json_encode/json_decode calls for consistency in error handing - hello Rector!... Staring with throwing on error so that we get useful info and can start isolating these.

In your individual situation, to identify the actual bad metadata field, log or inspect $filesMetadata->jsonSerialize() and call json_last_error_msg() immediately after the current json_encode() call. Something like:

$serializedMetadata = $filesMetadata->jsonSerialize();
$json = json_encode($serializedMetadata);

if ($json === false) {
	$this->logger->error('Unable to JSON-encode file metadata', [
		'fileId' => $filesMetadata->getFileId(),
		'error' => json_last_error_msg(),
		'metadata' => $serializedMetadata,
	]);

	foreach ($serializedMetadata as $key => $value) {
		if (json_encode($value) === false) {
			$this->logger->error('Unable to JSON-encode metadata field', [
				'fileId' => $filesMetadata->getFileId(),
				'key' => $key,
				'error' => json_last_error_msg(),
				'value' => $value,
			]);
		}
	}

	throw new FilesMetadataException(
		'Unable to JSON-encode metadata for fileId '
		. $filesMetadata->getFileId()
		. ': ' . json_last_error_msg(),
	);
}

if (strlen($json) > self::JSON_MAXSIZE) {

[NCfeedback]

I added that above the last line you provided, and it’s still successful now, even commenting out the single line I added. I’ll keep digging into it. If it helps, here’s a metadata sample from an image that was unsuccessful when I made this:

---- ExifTool ----
ExifTool Version Number : 12.76
Warning : [Minor] Not decoding some large array(s). Ignore minor errors to decode
---- System ----
File Name : 07,14,2026,08;58;22;AM,6702.dng
Directory : .
File Size : 79 MB
File Modification Date/Time : 2026:07:14 08:58:30-04:00
File Access Date/Time : 2026:07:14 09:24:55-04:00
File Inode Change Date/Time : 2026:07:14 09:24:55-04:00
File Permissions : -rw-rw-r--
---- File ----
File Type : DNG
File Type Extension : dng
MIME Type : image/x-adobe-dng
Exif Byte Order : Big-endian (Motorola, MM)
---- IFD0 ----
Subfile Type : Reduced-resolution image
Image Width : 8064
Image Height : 6048
Bits Per Sample : 8 8 8
Compression : JPEG
Photometric Interpretation : YCbCr
Make : Apple
Camera Model Name : iPhone 17 Pro Max
Preview Image Start : 206184
Orientation : Horizontal (normal)
Samples Per Pixel : 3
Rows Per Strip : 6048
Preview Image Length : 11021978
Software : 26.5.2
Modify Date : 2026:07:14 08:58:22
DNG Version : 1.6.0.0
DNG Backward Version : 1.3.0.0
Unique Camera Model : iPhone18,2 back camera
Color Matrix 1 : 1.299852848 -0.6473193765 -0.2318986207 -0.4558799863 1.513552666 -0.02695739456 -0.04014902189 0.1442424506 0.6399207115
Color Matrix 2 : 0.9567329288 -0.379699856 -0.1292831898 -0.4220122099 1.30898881 0.08943350613 -0.09921766818 0.2101706117 0.467231214
Analog Balance : 2.560058594 1 1.876464963
As Shot Neutral : 1 1 1
Baseline Exposure : 0.5146380663
Baseline Sharpness : 1.5
Calibration Illuminant 1 : Standard Light A
Calibration Illuminant 2 : D65
Noise Reduction Applied : 0.9499999881
Profile Name : Apple Embedded Color Profile
Profile Tone Curve : (large array of 514 float values)
Preview Image : (Binary data 11021978 bytes, use -b option to extract)
---- SubIFD ----
Subfile Type : Full-resolution image
Image Width : 8064
Image Height : 6048
Bits Per Sample : 10 10 10
Compression : JPEG
Photometric Interpretation : Linear Raw
Samples Per Pixel : 3
Planar Configuration : Chunky
Tile Width : 1008
Tile Length : 1008
Tile Offsets : (Binary data 431 bytes, use -b option to extract)
Tile Byte Counts : (Binary data 378 bytes, use -b option to extract)
Linearization Table : (Binary data 5438 bytes, use -b option to extract)
Black Level : 0 0 0
White Level : 65535 65535 65535
Noise Profile : 3e-05 3e-08
Default Black Render : None
Profile Gain Table Map : (Binary data 197440 bytes, use -b option to extract)
---- SubIFD1 ----
Subfile Type : Semantic Mask
Image Width : 2016
Image Height : 1512
Bits Per Sample : 8
Compression : Lossy JPEG
Photometric Interpretation : Semantic Mask
Other Image Start : 11228164
Samples Per Pixel : 1
Rows Per Strip : 1512
Other Image Length : 138407
Semantic Name : urn:com:apple:photo:2020:aux:semanticskymatte
Other Image : (Binary data 138407 bytes, use -b option to extract)
---- XMP-x ----
XMP Toolkit : XMP Core 6.0.0
---- XMP-semanticSegmentationMatte ----
Semantic Segmentation Matte Version: 65536
---- XMP-apdi ----
Auxiliary Image Type : urn:com:apple:photo:2020:aux:semanticskymatte
---- ExifIFD ----
Exposure Time : 1/686
F Number : 1.8
Exposure Program : Program AE
ISO : 64
Exif Version : 0232
Date/Time Original : 2026:07:14 08:58:22
Create Date : 2026:07:14 08:58:22
Offset Time : -04:00
Offset Time Original : -04:00
Offset Time Digitized : -04:00
Shutter Speed Value : 1/686
Aperture Value : 1.8
Brightness Value : 7.187811444
Exposure Compensation : 0
Metering Mode : Multi-segment
Flash : Off, Did not fire
Focal Length : 6.8 mm
Subject Area : 4027 3020 4435 2655
Sub Sec Time Original : 797
Sub Sec Time Digitized : 797
Exif Image Width : 8064
Exif Image Height : 6048
Sensing Method : One-chip color area
Scene Type : Directly photographed
Custom Rendered : Custom
Exposure Mode : Auto
White Balance : Auto
Focal Length In 35mm Format : 24 mm
Lens Info : 2.220000029-16.890625mm f/1.779999971-2.798828125
Lens Make : Apple
Lens Model : iPhone 17 Pro Max back triple camera 6.765mm f/1.78
---- Apple ----
Maker Note Version : 16
Run Time Flags : Valid
Run Time Value : 23826255491708
Run Time Scale : 1000000000
Run Time Epoch : 0
AE Stable : Yes
AE Target : 172
AE Average : 172
AF Stable : Yes
Acceleration Vector : -0.9196620584 0.04226083307 0.3369942606
Focus Distance Range : 1.79 - 1.80 m
Apple 0x000d : 21
Apple 0x000e : 0
Apple 0x0010 : 1
Image Capture Type : ProRAW
Live Photo Video Index : 4294967764
Image Processing Flags : [13], [16]
Quality Hint : q750n
Apple 0x001f : 0
Image Capture Request ID : 11A580E3-A594-49D4-A41A-E4926332F525
HDR Headroom : 1.00999999
Apple 0x0023 : 192 268435495
Scene Flags : [1], [2], [7], [12], [21], [23]
Signal To Noise Ratio Type : 3
Signal To Noise Ratio : 49.50317383
Photo Identifier : 444D4DBF-15E2-4638-B64E-E190290F8B01
Apple 0x002d : 5438
Apple 0x002e : 1
Focus Position : 56
HDR Gain : 0.007142747753
Apple 0x0033 : 28672
Apple 0x0034 : 1
Apple 0x0035 : 0
Apple 0x0036 : 10841
Apple 0x0037 : 8
AF Measured Depth : 169
Apple 0x0039 : 0
Apple 0x003a : 128
Apple 0x003b : 0
Apple 0x003c : 4
AF Confidence : 91
Apple 0x0043 : 0
Apple 0x0044 : 0
Front Facing Camera : No
Apple 0x0046 : 0
Apple 0x0048 : 0
Apple 0x0049 : 0
Apple 0x004a : 2
Apple 0x004d : 37.68908691
Apple 0x004e : bplist00�......Q1Q2Q3..�..�....S2.1S2.2#@n.�#@�.[...]
Apple 0x004f : bplist00......
Apple 0x0052 : 4
Apple 0x0055 : 0
Apple 0x0058 : 2307
Apple 0x005a : bplist00�..........Q3Q1Q4Q2Q0"<$oP"">�Y`........."'[...]
Apple 0x005e : 98 112 108 105
Apple 0x0060 : 4147
Apple 0x0061 : 24
---- Composite ----
Run Time Since Power Up : 6:37:06
Aperture : 1.8
Image Size : 8064x6048
Megapixels : 48.8
Scale Factor To 35 mm Equivalent: 3.5
Shutter Speed : 1/686
Create Date : 2026:07:14 08:58:22.797-04:00
Date/Time Original : 2026:07:14 08:58:22.797-04:00
Modify Date : 2026:07:14 08:58:22-04:00
Circle Of Confusion : 0.008 mm
Field Of View : 73.7 deg
Focal Length : 6.8 mm (35 mm equivalent: 24.0 mm)
Hyperfocal Distance : 3.04 m
Light Value : 11.7
Lens ID : iPhone 17 Pro Max back triple camera 6.765mm f/1.78

[icewind1991]

#62208 adds some error handling and logging