1. Overview
The VILTROX AF 9mm F2.8 Air lens is an ultra-wide-angle autofocus lens designed for APS-C Sony E-Mount cameras. It offers a 113.8° field of view, making it ideal for capturing expansive landscapes, architectural shots, and vlogging. Its lightweight and compact design ensures portability without compromising optical performance.

Image: VILTROX AF 9mm F2.8 Air APS-C Lens on a camera.
Nøkkelfunksjoner
- Ultra-Wide Angle of View: Equivalent to approximately 13.5mm in full-frame format, with a 113.8° ultra-wide angle, suitable for diverse scenes.
- Clear Image Quality: Features a 13 elements in 11 groups optical structure, including aspherical, extra-low dispersion, and high-refractive index elements for sharp, low-distortion images.
- 0.13m Minimum Focusing Distance: Allows for stunning close-up shots with detailed backgrounds.
- Reliable Autofocus: Equipped with a Viltrox STM silent motor for precise and fast autofocus, ideal for capturing dynamic subjects.
- Lightweight & Stable: Weighs approximately 175g, ensuring portability. Minimal focus breathing for smooth video transitions.
- Unique Starburst Charm: HD multi-layer nano-coating technology reduces flare and ghosting, creating captivating starbursts.
- Excellent Low-Light Shooting: F2.8 aperture allows for increased light intake, enabling slower shutter speeds and purer night scenes.

Bilde: Overview of VILTROX AF 9mm F2.8 Air E lens features including ultra-wide vision, autofocus, optical structure, and lightweight design.
Produktvideo
Video: Official Viltrox video showcasing the AF 9mm F2.8 Air Lens in various shooting scenarios, highlighting its ultra-wide angle, lightweight design, and autofocus capabilities.
2. Pakkens innhold
Verify that all items listed below are included in your product package.
- VILTROX AF 9mm F2.8 Air Lens
- Objektivhette
- Linsepose
- Linsens bakre hette
- Linselokk foran
- Elektronisk manual
- Pakkeboks

Image: Contents of the standard package for the VILTROX AF 9mm F2.8 Air E lens, including the lens, caps, hood, bag, and documentation.
3. Oppsett
Feste objektivet
- Sørg for at kameraet er slått av.
- Remove the rear lens cap from the VILTROX AF 9mm F2.8 Air lens and the body cap from your camera.
- Align the white index mark on the lens barrel with the corresponding index mark on your camera's lens mount.
- Monter linsen ved å rotere den med klokken til den klikker på plass. Ikke bruk makt.
Ta av objektivet
- Sørg for at kameraet er slått av.
- Mens du trykker på utløserknappen for objektivet på kamerahuset, roterer du objektivet mot klokken til det stopper.
- Fjern objektivet forsiktig fra kamerahuset.
- Attach the rear lens cap to the lens and the body cap to the camera to protect them from dust and damage.

Image: A VILTROX AF 9mm F2.8 Air E lens being attached to a Sony E-Mount camera body.
4. Betjening av linsen
Autofokus (AF) og manuell fokus (MF)
The lens features an AF/MF switch on the barrel for quick selection between autofocus and manual focus modes. In AF mode, the STM motor provides fast and precise focusing. In MF mode, rotate the focus ring to adjust focus manually.

Image: Close-up of the VILTROX AF 9mm F2.8 Air E lens barrel, showing the AF/MF switch.
Blenderåpningskontroll
The lens has a maximum aperture of F2.8, allowing for excellent low-light performance and shallow depth of field. The aperture can be adjusted via your camera's settings.
Firmware oppdateringer
The lens is equipped with a Type-C upgrade interface for future firmware updates. Connect the lens to a computer using a USB-C cable to perform updates as instructed by VILTROX.

Bilde: Detaljert view of the VILTROX AF 9mm F2.8 Air E lens, highlighting the Type-C upgrade interface.
5. Vedlikehold
- Always use a soft, clean microfiber cloth to clean the lens elements. Avoid using harsh chemicals or abrasive materials.
- When not in use, keep the lens caps on and store the lens in its bag in a dry, dust-free environment.
- Avoid exposing the lens to extreme temperatures, humidity, or direct sunlight for prolonged periods.
- Do not attempt to disassemble or repair the lens yourself, as this may void the warranty.
6. Feilsøking
- Autofokus fungerer ikke: Ensure the AF/MF switch on the lens is set to AF. Check camera settings to confirm autofocus is enabled. Clean lens and camera contacts.
- Bildet er uskarpt: Verify that the lens is properly attached and securely mounted. Check focus mode (AF/MF) and ensure correct focus. Adjust aperture and shutter speed as needed.
- Objektivet gjenkjennes ikke av kameraet: Ensure the lens is correctly mounted. Turn the camera off and on again. Check for available firmware updates for both the lens and camera.
- Dust or spots on images: Clean the front and rear lens elements carefully with a lens cleaning kit. If spots persist, check your camera's sensor for dust.
7. Spesifikasjoner
| Merke | VILTROX |
| Modellnavn | VILTROX AF 9mm F2.8 Air |
| Linsetype | Wide Angle, Prime |
| Kompatible monteringer | Sony E |
| Brennvidde | 9 Millimeters (Ultra Wide Angle) |
| Minimum blenderåpning | 2.8 f |
| Maksimal blenderåpning | 16 f |
| Antall membranblader | 7 |
| Størrelse på fotofilter | 58 millimeter |
| Fokus Type | Auto/manuell |
| Bildestabilisering | Ingen bildestabilisering |
| Virkelig vinkel av View | 113.8 grader |
| Produsentens delenummer | WY-9mm F2.8 E |

Image: MTF (Modulation Transfer Function) chart illustrating the optical performance of the VILTROX AF 9mm F2.8 Air E lens.
8. Garanti og støtte
For warranty information and customer support, please contact the seller directly.
- Garantibeskrivelse: Ta kontakt med selger
- Selgerkontakt: Weeylite US Store