M43 Lens Database
M43 Lens database and DoF-calc
Only for iPhone
$1.99 · Designed for iPhone. Not verified for macOS.
iPhone
Your MFT lens companion — 81 lenses plus your own. My Kit dashboard, visual DOF, shot log with photos, and lens comparison. No subscriptions.
Your personal Micro Four Thirds lens companion. Browse the lens database, add your own, catalog your collection, log your shoots with photos, and see depth of field — all tuned for your system.
My Kit
- See your entire collection at a glance
- Focal coverage chart shows what your kit covers — and where the gaps are
- Total weight, fastest aperture, widest and longest lens
- Lens usage heat map reveals which lenses you actually shoot with
80 MFT lenses with full specs — plus your own
- Panasonic Lumix G and Leica DG
- OM System / Olympus M.Zuiko
- Sigma Contemporary and Voigtländer Nokton
- Weight, dimensions, weather sealing, image stabilization for every lens
- Add any lens that isn't here — legacy, adapted, or third-party — and it works everywhere
Your lens collection
- Mark owned lenses with one tap
- Filter by brand, type, focus, filter diameter
- Weather Resistance (WR) and Image Stabilisation (IS) badges at a glance
- Brand-colored cards for quick identification
Compare lenses
- Pick two lenses and compare depth of field side-by-side
- Independent focal length and aperture controls per lens
- See real differences at any focus distance
Shot log
- Document your shots with lens, settings, and conditions
- Attach a photo to each note for a visual record
- Record what worked and what to try differently
- Export notes in CSV, JSON, or Markdown
Depth of field tools
- Visual DOF diagram shows your in-focus zone in real-time
- MFT-specific calculations (correct 0.015mm circle of confusion)
- Hyperfocal, near limit, and far limit
- Tap any lens to instantly calculate its DOF
- Smart matching shows which lenses fit your current settings
No subscriptions. No ads. Pay once, own it.
Whether you shoot OM System, Panasonic, Sigma, Voigtländer — or adapt vintage glass — this is your Micro Four Thirds field companion.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
"Edit your lenses. Photograph your kit."
- New: Edit custom lenses — fix a name or any spec on the lenses you've added. Rename one and its owned status and shot notes follow it automatically.
- New: Photos on lenses — attach your own photos to any lens (product shots, MTF charts, reference frames). The icon turns blue once a lens has photos, so you can see what you've documented at a glance.
- Fixed: custom lens names are no longer autocorrected
(Every change here came straight from feedback on the mu-43 forum — thank you.)
The developer, Andre Berg-Stølen, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Andre Berg-Stølen
- Size
- 1.5 MB
- Category
- Photo & Video
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © André Berg-Stølen

