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TLR Companion

Meter. Track. Shoot.

For photographers learning to see light through cameras that were built to last forever.

Light Meter for Film Photography

  • Real-time exposure calculation
  • Aperture and shutter speed recommendations
  • Lock either setting independently
  • Exposure priority modes
  • Overexposure and low-light warnings
  • EV display
  • ND filter support with bulb timer and reciprocity correction

120 Film Roll Tracking

  • Load film onto specific cameras
  • Automatic frame counting for 120 film
  • Track each roll: shooting, complete, developed
  • Switch cameras — film stays with the right body
  • Add and edit notes per roll

TLR & Medium Format Cameras

  • 11 camera profiles with real specs
  • Manage multiple cameras with nicknames
  • See film status per camera at a glance
  • Rolleiflex, Yashica, Mamiya, Minolta

Reference Photos

  • Capture with full exposure metadata
  • Frame-numbered, tied to your film roll
  • Text and voice notes per frame
  • Compare with developed film later

Focus Assistance

  • Focus peaking overlay
  • Adjustable sensitivity and color
  • Rule of thirds grid

19 Film Stocks

  • Tri-X, HP5, Delta 3200
  • Portra 400, Gold 200, Ektar 100
  • Cinestill 800T, Superia, and more

No subscription. No cloud. No ads. No tracking.

Built for Twin-Lens Reflex Photographers

TLR Companion includes camera profiles with real aperture and shutter speed constraints for the most popular TLR cameras. Load your specific camera, and the light meter recommends only settings your camera can actually use.

Explore the TLR Camera Guide

New to twin-lens reflex cameras? Our TLR Camera Guide covers 48 cameras across four brands — complete with specs, history, current market prices, manuals, and sample photos.