NiSi Athena Prime Master Set - Canon RF

No, the NiSi Athena Prime series are fully manual focus lenses designed for cinema applications.

The lenses are native Canon RF mount; using them on other systems would require an adapter that maintains electrical communication, though native mounting is recommended.

Yes, they feature industry-standard 0.8 MOD gears, ensuring compatibility with most cinema follow-focus systems.

Yes, while they feature a convenient rear filter mount, they also accept standard front filters depending on the specific lens element size.

The glowing markings allow focus pullers to read the focus distance clearly in dark environments without requiring a secondary light source near the lens.

Check for debris near the gear interface. If the lens was recently exposed to extreme cold, allow it to acclimate to room temperature before further use.

Verify that the gear ring on the lens is aligned with the drive gear on your follow focus unit; re-calibrate the motor range if using an electronic system.

Inspect the rear element of the lens for dust and clean with a dry lens brush; if the issue persists, perform a sensor cleaning on the camera body.