1. Introducció
Gràcies per la compraasing the TTArtisan 27mm F2.8 XF-Mount Auto Focus APS-C STM Lens. This compact and versatile lens is designed for Fujifilm X-Mount mirrorless cameras, offering a 27mm focal length (approximately 40.5mm equivalent in full-frame) and a bright F2.8 aperture. It features an STM stepping motor for smooth and quiet autofocus, making it suitable for various photography and videography applications.
Càmeres compatibles: X-A1, X-A10, X-A2, X-A3, X-A5, X-A7, X-M1, X-H1, X-H2, X-T1, X-T10, X-T2, X-T20, X-T30, X-T3, X-T4, X-T5, X-T100, X-T200, X-PR01, X-PR02, X-PR03, X-E1, X-E2, X-E2S, X-E3, X-E4, XS10.

Figura 1.1: Frontal view of the TTArtisan 27mm F2.8 XF-Mount lens.
2. Configuració i instal·lació
2.1 Unpacking the Lens
Carefully remove the lens and its accessories from the packaging. Ensure all components listed in the specifications are present.

Figure 2.1: The TTArtisan 27mm F2.8 lens with its standard accessories, including front and rear caps, lens hood, filter, pouch, and cleaning cloth.
2.2 Fixació de l'objectiu a la càmera
- Assegureu-vos que la càmera estigui apagada.
- Remove the rear lens cap from the TTArtisan 27mm F2.8 lens and the body cap from your Fujifilm X-Mount camera.
- Alinea el punt vermell del cilindre de l'objectiu amb el punt vermell de la muntura de l'objectiu de la càmera.
- Introduïu suaument l'objectiu a la muntura de la càmera i gireu-lo en sentit horari fins que encaixi. No forceu l'objectiu.
- Traieu la tapa frontal de l'objectiu. Ara l'objectiu ja està a punt per al seu ús.

Figure 2.2: The TTArtisan 27mm F2.8 lens properly mounted on a Fujifilm X-M1 camera body.

Figure 2.3: Demonstrating the compact size of the lens when attached to a camera.
3. Funcionament de l'objectiu
3.1 Autofocus System (STM Stepping Motor)
The TTArtisan AF 27mm F2.8 lens incorporates an STM (Stepping Motor) with a leading screw design. This motor provides fast, smooth, and quiet autofocus performance, which is beneficial for both still photography and video recording. The compact size of the motor contributes to the overall small form factor of the lens.

Figura 3.1: Intern view illustrating the STM stepping motor mechanism.
3.2 Eye Detection Autofocus
This lens supports eye-detection autofocus when used with compatible Fujifilm cameras. This feature allows the camera to automatically detect and track the subject's eyes, ensuring sharp focus on portraits and moving subjects. This functionality enhances both photo and video capture.

Figure 3.2: A visual representation of the eye-detection autofocus feature in action.
3.3 Click Aperture Ring
The lens features an independent aperture ring with distinct click stops. This design allows for tactile and precise aperture adjustments directly on the lens, providing a more intuitive and faster shooting experience compared to adjusting aperture through the camera body's controls.

Figure 3.3: Detail of the lens's aperture ring with click stops.
3.4 Close-up Shooting
The lens offers a minimum focusing distance of 0.35 meters (1.15 feet), enabling close-up photography to capture fine details. The wide F2.8 aperture also contributes to pleasing background blur (bokeh) in close-up shots.

Figura 3.4: Una imatge que mostraasing the shallow depth of field and bokeh achievable with the F2.8 aperture.
4. Manteniment i cura
4.1 Neteja de la lent
- Feu servir un drap suau i sense borrissol o un raspall per a lents per eliminar la pols de les superfícies de les lents.
- For smudges or fingerprints, apply a small amount of lens cleaning solution to a microfiber cloth and gently wipe the lens in a circular motion.
- Eviteu tocar els elements de vidre directament amb els dits.
4.2 Emmagatzematge
- Col·loqueu sempre les tapes frontal i posterior de l'objectiu quan no l'utilitzeu.
- Guardeu la lent en un lloc fresc i sec, allunyat de la llum solar directa i de temperatures extremes.
- Si s'emmagatzema durant períodes prolongats, considereu l'ús d'un dessecant per prevenir la floridura i el míldiu.
4.3 Actualització del firmware
The lens features a USB-C interface on its rear lens cap for firmware upgrades. This allows for improved performance and compatibility updates. Refer to the official TTArtisan website for the latest firmware and detailed upgrade instructions.

Figure 4.1: The USB-C port located on the rear lens cap for firmware updates.
5. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| La càmera no reconeix l'objectiu | Lens not properly mounted; dirty electrical contacts. | Re-mount the lens, ensuring it clicks into place. Clean the lens and camera electrical contacts with a clean, dry cloth. |
| L'enfocament automàtic és lent o busca | Low light conditions; low contrast subject; outdated firmware. | Ensure adequate lighting. Focus on a high-contrast area. Update lens firmware via the USB-C port. |
| Vinyetatge (cantons foscos) a les imatges | Common at wide apertures (e.g., F2.8); lens hood misalignment. | This is often a characteristic of wide-aperture lenses and can be corrected in post-processing. Ensure lens hood is correctly attached. |
| L'anell de diafragma no respon | Camera settings overriding lens control. | Check your camera's settings to ensure it is set to allow aperture control via the lens. |
6. Especificacions
- Distància focal: 27 mm
- Apertura màxima: F2.8
- Apertura mínima: F16
- Mida del filtre: 39 mm
- Tipus de marc: APS-C
- Distància d'enfocament més propera: 0.35 m (1.15 peus)
- Fulles de diafragma: 7
- Disseny òptic: 6 elements en 5 grups
- Mètode d'enfocament: AF (enfocament automàtic)
- Angle de View: 56°
- Dimensions: 61 x 29 mm
- Pes: 93g (approximately 3.3 ounces)
- Accessoris inclosos: Lens, front lens cap, rear lens cap, lens hood, lens filter, user manual, pouch case, clean cloth.
7. Informació de la garantia
TTArtisan products are covered by a manufacturer's warranty against defects in materials and workmanship. The specific terms and duration of the warranty may vary by region. Please retain your proof of purchase for warranty claims. For detailed warranty information, please visit the official TTArtisan weblloc web o poseu-vos en contacte amb el vostre distribuïdor local.
8. Atenció al client
If you encounter any issues or have questions regarding your TTArtisan 27mm F2.8 lens, please refer to the troubleshooting section of this manual. For further assistance, you can contact TTArtisan customer support through their official weblloc web o el venedor on vau comprar el producte.
Oficial Weblloc: www.ttartisan.com





