SIRUI 24mm Anamorphic Lens F2.8 1.33X APS-C RF Mount

With its 1.33x anamorphic compression, this lens produces a 2.4:1 aspect ratio when de-squeezed in post-production, compared to the standard 16:9 aspect ratio.

While it may physically mount, the lens is designed for APS-C sensors. Using it on a full-frame camera will result in heavy vignetting, forcing you to crop significantly. For optimal results, use it on compatible APS-C RF mount cameras.

No, this is a fully manual lens. Both focus and aperture must be adjusted by hand using the rings on the lens barrel.

The horizontal light streaks are a characteristic of anamorphic lenses and are typically produced when strong light sources (like headlights, streetlights, or the sun) are in the frame and hit the front element. They are more pronounced at wider apertures.

The minimum focusing distance for this lens is 0.6 meters (approximately 2 feet).

You will need video editing software that supports anamorphic de-squeezing. Most professional editing suites (e.g., Adobe Premiere Pro, Final Cut Pro, DaVinci Resolve) have options to apply a 1.33x anamorphic de-squeeze to your footage.

It means that the lens compresses the horizontal field of view by a factor of 1.33. This allows you to capture a wider scene onto your camera's sensor, which is then 'stretched' back to its original proportions in post-production to achieve a widescreen cinematic look.

Ensure you are using a compatible Canon RF mount camera and that no debris is obstructing the mount on either the lens or the camera body. Verify you are aligning the mounting indicators correctly.

Confirm that the lens is set to manual focus and that you are actively adjusting the focus ring. Use your camera's focus peaking or magnification tools to achieve precise focus. Ensure the aperture is not set too wide if critical sharpness is needed at the edges.

This lens is designed for APS-C sensors. If you are using a full-frame camera, this vignetting is expected. You will need to crop the image significantly to remove the blacked-out areas, or use the lens on an APS-C camera body.

Ensure the aperture ring is not locked in a specific position. If it remains stiff, it may require professional servicing. Avoid forcing the ring, as this could cause damage.