LockCircle - tools with a vision

- CINEMATIC PRODUCTION CAGE SYSTEM FOR LEICA SL2
- REVOLUTIONARY GRIP MOUNTING SYSTEM FOR ASTERA
- CINEMATIC PRODUCTION CAGE SYSTEM FOR LUMIX GH5/GH5S - SONY A7III/A7RIII/A9
- THE POCKET 4K/6K CAMERA CAGE
- CINEMATIC MODULAR 15MM RODS BASEPLATE SYSTEM
- TITANIUM GRADE 5 HIGH-END 15/19MM ROD MODULAR JOINABLE RODS SYSTEM
- PHOTON TRAP TECHNOLOGY MATTEBOX SYSTEM
- NIKON ZX PRO CAMERA CAGE FOR NIKON Z6/Z7
- PROFESSIONAL CAMERA CAPS FOR EXTREME PROTECTION
- CAMERA DSLR/MIRRORLESS CAMERA PORT SAVERS
- CINEMATIC LENSES/REHOUSINGS, PROFESSIONAL HIGH-END FILTERS
- ADAPTER RINGS AND DEDICATED CUSTOM CAPS FOR CINEMATIC SHOOTING

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PrimeCircle filters are diamond cut from German Ultra-White optical glass, the best quality solution for modern high resolution lenses! The parallel relationship between front and rear surfaces (important for the best optical performance) is verified with a laser interferometer and a densitometer is used for testing consistent density. To check proper light transmission is also used a spectrophotometer!

PrimeCircle Neutral Density (ND) Reverse Grads help balance
foreground with bright horizon, allowing more detail
in foreground and sky above.
The Reverse Grads are creative tools that can be used
to enhance annoying landscapes.