1. Introducción
This manual provides detailed instructions for the proper use and care of your VILTROX AF 25mm F1.7 Z-Mount lens. Designed for Nikon Z-mount APS-C cameras, this lens offers a bright f/1.7 aperture and fast autofocus, making it suitable for various photographic applications. Please read this manual thoroughly before using the lens to ensure optimal performance and longevity.
2. Características del producto
- Bright f/1.7 Aperture: Enables excellent low-light performance and produces pleasing background blur (bokeh), ideal for portraits and creative photography.
- Optimized Optical Design: Features 12 elements in 10 groups, including 2 High Refractive (HR) elements, 1 Extra-low Dispersion (ED) element, and 2 Aspherical (ASPH) elements. This design minimizes chromatic aberrations, distortion, and flare for high image quality.
- Longitud focal equivalente a 38 mm: Provides a natural perspective on APS-C sensors, suitable for landscapes, portraits, and general everyday shooting.
- Fast Autofocus and Low Focus Breathing: Equipped with a new STM motor for quick, precise, and quiet autofocus. Minimized focus breathing ensures stable framing during video recording.
- Diseño compacto y ligero: Weighs approximately 180g, enhancing portability for photographers on the go.
- 0.3m Minimum Focusing Distance: Allows for detailed close-up shots, expanding the lens's versatility.
3. ¿Qué hay en la caja?

The image above displays the typical contents included with your VILTROX AF 25mm F1.7 Z-Mount lens package.
- VILTROX AF 25mm F1.7 Z-Mount Lens
- Tapa de lente frontal
- Tapa de lente trasera
- Parasol
- Estuche para lentes
- Tarjeta de garantía
- Manual de instrucciones (este documento)
4. Configuración
4.1 Cómo colocar la lente en la cámara
- Asegúrese de que su cámara esté apagada.
- Remove the rear lens cap from the VILTROX 25mm F1.7 Z lens and the body cap from your Nikon Z-mount camera.
- Align the white dot on the lens barrel with the white dot on your camera's lens mount.
- Inserte el objetivo en el soporte de la cámara y gírelo en sentido horario hasta que encaje. No fuerce el objetivo.

This image shows the VILTROX 25mm F1.7 Z lens correctly attached to a Nikon Z-series camera body, ready for use.
4.2 Extracción de la lente
- Asegúrese de que su cámara esté apagada.
- Mantenga presionado el botón de liberación de la lente en el cuerpo de la cámara.
- Rotate the lens counter-clockwise until it detaches from the camera mount.
- Coloque inmediatamente la tapa trasera de la lente en la lente y la tapa del cuerpo en la cámara para proteger los sensores y los elementos de la lente del polvo.
4.3 Colocación del parasol
The included lens hood helps to prevent flare and ghosting caused by stray light entering the lens. Align the lens hood with the front of the lens and twist it until it locks into place. Ensure it is securely attached.
4.4 actualizaciones de firmware
The lens features a USB-C port on its mount for firmware updates. Connect the lens to a computer using a USB-C cable and visit the official VILTROX website for the latest firmware and update instructions. Keeping your lens firmware updated ensures compatibility and optimal performance.

This image highlights the metal lens mount and the USB-C port located on the rear of the lens, used for firmware updates.
5. Operación de la lente
5.1 Enfoque automático (AF)
The VILTROX 25mm F1.7 Z lens is equipped with an STM stepping motor, providing fast, precise, and quiet autofocus performance. To use autofocus, set your camera's focus mode to AF. The lens supports various AF modes available on your Nikon Z camera, including single-shot AF (AF-S) and continuous AF (AF-C).

The lens is designed to be lightweight and compact, making it easy to handle and operate for extended periods.
5.2 Enfoque manual (MF)
To use manual focus, set your camera's focus mode to MF. Rotate the focus ring on the lens to adjust focus. Your camera's focus peaking and magnification features can assist in achieving critical focus.
5.3 Control de apertura
The lens features a bright f/1.7 maximum aperture. Aperture is controlled electronically through your camera body. Adjusting the aperture allows you to control the depth of field and the amount of light entering the lens.
5.4 Focus Breathing
This lens is designed with minimized focus breathing, which means the angle of view remains largely consistent when adjusting focus. This feature is particularly beneficial for video recording, preventing distracting changes in framing.
5.5 Samplas imágenes


6. Mantenimiento
6.1 Limpieza de la lente
- Utilice un cepillo soplador para eliminar el polvo y las partículas sueltas de la superficie de la lente.
- For smudges or fingerprints, use a clean microfiber cloth specifically designed for optics, along with a small amount of lens cleaning solution. Apply the solution to the cloth, not directly to the lens.
- Limpie suavemente con movimientos circulares desde el centro hacia afuera.
- Evite tocar los elementos de la lente con los dedos.
6.2 Almacenamiento
- Coloque siempre las tapas de las lentes delantera y trasera cuando la lente no esté en uso.
- Guarde la lente en un lugar fresco y seco, alejado de la luz solar directa y de temperaturas extremas.
- If storing for extended periods, consider using a dehumidifying cabinet or silica gel packets to prevent mold and fungus growth.
7. Solución de problemas
| Problema | Posible causa | Solución |
|---|---|---|
| La cámara no reconoce la lente | Improper mounting; dirty electrical contacts; outdated firmware. | Re-mount the lens securely; clean lens and camera contacts with a dry cloth; check for and install latest firmware. |
| El enfoque automático es lento o impreciso | Low light conditions; camera AF settings; dirty lens elements; outdated firmware. | Ensure adequate lighting; check camera AF mode (e.g., switch to AF-S for still subjects); clean lens; update firmware. |
| Las imágenes están borrosas o suaves | Incorrect focus; camera shake; dirty lens; shooting at extreme apertures. | Verify focus; use a faster shutter speed or tripod; clean lens; try shooting at f/2.8 or f/4 for optimal sharpness. |
| Lens not focusing in manual mode | Camera still in autofocus mode. | Set camera's focus mode to MF (Manual Focus). |
8. Especificaciones
| Característica | Detalle |
|---|---|
| Número de modelo | 25mmF1.7STM(Z-mount) |
| Longitud focal | 25mm (38mm equivalent on APS-C) |
| Apertura máxima | f/1.7 |
| Apertura mínima | f/16 |
| Montura de lente | Nikon Z |
| Compatibilidad de formato | APS-C |
| Diseño óptico | 12 Elements in 10 Groups (including HR, ED, ASPH elements) |
| Motor de enfoque automático | STM (motor paso a paso) |
| Distancia mínima de enfoque | 0.3m (1 ft) |
| Tamaño del filtro | 52 mm |
| Dimensiones (Diámetro x Largo) | 2.22 x 2.52 x 2.52 pulgadas (aprox.) |
| Peso | 180 g (6.3 onzas) |
| Puerto de actualización de firmware | USB-C |


9. Vídeos oficiales del producto
9.1 VILTROX 25mm f1.7 Z Lens Overview
Este vídeo ofrece una breve descripciónview and unboxing of the VILTROX AF 25mm F1.7 Z-Mount lens, demonstrating its compact size and how it attaches to a camera.
9.2 AF 25mm F1.7 Air Z Nikon Half-Frame Humanities Lens Showcase
This video showcases the VILTROX AF 25mm F1.7 Air Z lens, highlighting its features and providing examples of its use in various photographic scenarios, including humanities and street photography.
10. Garantía y soporte
VILTROX products are covered by a limited warranty. For specific warranty terms, registration, and technical support, please refer to the warranty card included in your product packaging or visit the official VILTROX website. If you encounter any issues not covered in this manual, please contact VILTROX customer service for assistance.
VILTROX oficial Websitio: www.viltrox.com





