SIRUI 50mm f1.8 Anamorphic 1.33X Lens - Fujifilm X Mount

The '1.33x' indicates the lens compresses the image horizontally by a factor of 1.33. This allows it to capture a wider field of view than a standard lens. In post-production, the footage needs to be 'de-squeezed' by the same factor (1.33x) to display the correct widescreen 2.4:1 aspect ratio.

Yes, absolutely. To achieve the intended 2.4:1 widescreen aspect ratio and correct the horizontal compression, you must apply a de-squeeze effect in your video editing software.

This lens is optimized for APS-C sensors. While it might physically mount on some full-frame cameras, it will likely result in heavy vignetting and an unusable image circle, or it may not cover the sensor adequately at all.

With the 1.33x anamorphic squeeze, the horizontal field of view is widened significantly. The effective field of view is equivalent to approximately a 37.5mm lens on a 16:9 sensor, providing a wider perspective than a conventional 50mm lens.

This anamorphic lens typically produces oval-shaped bokeh, which is a characteristic trait of anamorphic lenses. This can add a unique visual element to your footage.

No, this lens features manual focus only. You will need to adjust focus manually using the focus ring on the lens.

The closest focusing distance for this lens is 0.85 meters (approximately 2.79 feet).

The lens has a 67mm filter thread, allowing you to attach standard 67mm filters such as ND, CPL, or diffusion filters.

Verify that your camera has a Fujifilm X-mount and that the lens is aligned correctly with the mounting index. Ensure no obstructions are present in the mount.

This lens is designed for APS-C sensors. Ensure it is mounted on a compatible APS-C Fujifilm X-mount camera. Vignetting may occur at wider apertures or if used on a camera with a larger sensor.

Practice manual focusing using the camera's focus peaking or magnification features. Ensure you are using the correct rotation range (143.6°) and the minimum focus distance (0.85m) is not exceeded.

Control the angle of light hitting the lens. Sometimes repositioning the light source or using a lens hood (if compatible and does not cause internal reflections) can help manage flares. Shoot in different lighting conditions to find what works best for your desired look.