PonToExif

PonToExif analyzes EXIF data from your photos to visualize your shooting patterns and equipment usage.

• Which cameras and lenses you use most
• Peak shooting times and days
• Preferred focal lengths, apertures, and ISO
• Map view of shooting locations
• Equipment cost-performance analysis

PonToExif requires EXIF data from your photos. There are two ways to get this data:

Method 1: Export from Lightroom Classic (Recommended)

If you use Lightroom Classic on your PC, exporting catalog data is the easiest method. Works on both iOS and Android.

Method 2: Scan Device Photos (iOS only)

Read EXIF directly from photos in iPhone's Photos app. Use this if you don't use Lightroom Classic.

To import Lightroom Classic catalog data, you need the PC conversion tool "PonLrCExporter".

Supported OS

• macOS: Apple Silicon (M1/M2/M3/M4) and Intel Mac
• Windows: Windows 10/11 (64bit)

Download

📥 Download here (Google Drive)

How to Use

1. Launch PonLrCExporter
2. Drag and drop your Lightroom catalog file (.lrcat)
3. Click "Export" button
4. A .ponexif file will be created on your Desktop
5. Transfer to your smartphone via AirDrop (Mac→iPhone) or file transfer
6. Import from PonToExif app's Settings

Photo Access Permission

When you first launch the app, you'll be asked for photo library access. Select "Allow Access to All Photos".

Running a Scan

Tap "Start Scan" from Settings. Two scan modes are available:

• Period-based (Recommended): Scans only recent photos. Fast and memory-efficient.
• Full period: Scans all photos. Takes longer.

Rankings

View photo count rankings by camera body, lens, and combinations.

• Body: Usage frequency by camera
• Lens: Usage frequency by lens
• Combo: Body × Lens combinations
• Blank: Days since last use

Analysis

Visualize your shooting patterns with graphs.

• Monthly Photos: Photo count trends by month
• Day × Time: Heatmap of peak shooting times
• Focal Length Distribution: Most used focal lengths
• Exposure Trends: F-stop, SS, ISO distribution
• Teleconverter Usage: TC usage counts and lens breakdown

Photo Map

Display shooting locations on a heatmap. Areas with higher shooting density appear in red.

Search & Filter

Filter photos by various conditions. Filter settings apply to rankings and analysis as well.

• Basic: Date range, past X days, day of week, time of day
• Equipment & Settings: Maker, camera, lens, focal length, F-stop, SS, ISO

Saved Filters

Save frequently used filter conditions with a name and recall them anytime.

Import CSV files exported from the "CameraAsset" app to enable equipment cost calculations.

Import Steps

1. In CameraAsset, go to "Settings" → "Backup"
2. Share the generated CSV file
3. Select "Import CameraAsset CSV" in PonToExif Settings

Select which data source to use for analysis in Settings.

• All: Both device photos and LrC data
• Device: iPhone photo library only
• LrC: Lightroom Classic data only

※ Android supports LrC data only

Backup and restore scanned data from Settings.

• Backup: Export as ZIP file
• Restore: Restore data from backup file

Teleconverter Merge

When using Nikon Z teleconverters, this feature groups them with the base lens. When enabled, lens rankings show merged results.

Camera Maker Settings

Manually assign makers when they can't be automatically detected from camera model names. A notification appears in Settings when unclassified cameras exist.

For questions, requests, or bug reports, please contact us.

v1.2.0

• Added manual camera maker mapping feature
• Added maker selection to filter conditions
• Improved Android UI (loading indicator during import, version display in settings)

v1.1.1

• Added teleconverter merge feature (Nikon Z TC support)
• Added teleconverter usage statistics to analysis