Sirui Vision Prime 1 T1.4 Cine Lens Kit - 24mm, 35mm, 50mm

These lenses are designed for full-frame cameras with Nikon Z-mount, Canon RF-mount, and Leica L-mount systems, using the appropriate user-changeable mount adapter.

The mount adapters can be unscrewed and replaced by hand. Align the new adapter and screw it in until it is secure. Refer to the included manual for detailed instructions.

No, the Sirui Vision Prime 1 lenses are manual focus lenses, designed for precise manual control preferred by many cinematographers.

A T-stop (Transmission stop) measures the actual amount of light transmitted through the lens, offering a more accurate exposure reading compared to an F-stop, which is a theoretical calculation.

Yes, all lenses in the kit feature a 67mm filter thread on the front element, allowing for standard screw-on filters.

The kit typically includes the 24mm, 35mm, and 50mm T1.4 lenses, multiple Z/RF/L mount adapters, and a protective lens bag.

The consistent size, weight, gear position, and color temperature across all focal lengths simplify on-set operation. Once your camera rig is set up, switching lenses requires minimal readjustment of accessories like follow focus or matte boxes, and ensures a unified color grade in post-production.

Ensure the correct mount adapter is securely installed on the lens and the lens is properly mounted to the camera body. Check camera settings for manual lens compatibility.

Verify that the focus ring is set to the desired focal distance. Ensure the lens is clean and free of smudges. Confirm the lens is properly seated on the camera mount.

Avoid forcing the rings. If resistance is felt, check for any obstructions. For persistent issues, contact customer support as the lens may require servicing.

While minimized, some focus breathing may occur at very wide apertures and extreme focus throws. Practice smooth, deliberate focus adjustments. Consider using a lens with a longer focus throw if this is critical.