Laowa 9mm f5.6 FF RL Lens for Sony E

No, the Laowa 9mm f/5.6 FF RL Lens for Sony E is a manual focus lens. You will need to adjust focus by hand using the focus ring on the lens barrel.

Rectilinear means that straight lines in the scene will appear as straight lines in the photograph, without the curvature typically associated with wide-angle or fisheye lenses. This lens provides a 135° angle of view while maintaining straight lines.

The closest focusing distance is 12 cm (approximately 4.72 inches) from the camera's sensor plane to the subject.

While it will mount, the lens is designed for full-frame sensors. On an APS-C camera, it will provide a narrower field of view due to the crop factor, negating its ultra-wide capabilities.

Use a soft, lint-free lens cloth. For tougher spots, apply a small amount of lens cleaning solution to the cloth, not directly to the lens, and wipe gently.

A 135° viewing angle allows you to capture an extremely wide field of view, fitting significantly more into your frame. This is particularly useful for expansive landscapes, grand architecture, and tight interior spaces.

The ability to focus as close as 12cm allows for unique wide-angle macro shots, where you can get very close to your subject while still including a broad perspective of the surroundings, and it also offers more creative control over depth of field.

Ensure you are using a compatible Sony E-mount camera and that the lens is aligned correctly with the mount index before attempting to attach.

Verify that the lens is set to manual focus and that you are actively adjusting the focus ring while using your camera's focus aids (like focus peaking or magnification) to achieve sharpness.

Utilize the included lens hood. Try to position yourself to avoid direct light sources entering the lens at extreme angles, or adjust your shooting angle slightly.

Use the aperture ring on the lens to adjust the depth of field. For deeper depth of field, stop down to smaller apertures (higher f-numbers like f/11, f/16). For shallower depth of field, use wider apertures (lower f-numbers like f/5.6).