1. Úvod
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. Vlastnosti produktu
- Jasná clona f/1.7: Enables excellent low-light performance and produces pleasing background blur (bokeh), ideal for portraits and creative photography.
- Optimalizovaný optický 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.
- 38 mm Ekvivalentní ohnisková vzdálenost: Provides a natural perspective on APS-C sensors, suitable for landscapes, portraits, and general everyday shooting.
- Rychlé automatické ostření a dýchání při nízkém zaostření: Equipped with a new STM motor for quick, precise, and quiet autofocus. Minimized focus breathing ensures stable framing during video recording.
- Kompaktní a lehký design: 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. Co je v krabici
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
- Krytka předního objektivu
- Zadní krytka objektivu
- Sluneční clona objektivu
- Pouzdro na objektiv
- Záruční list
- Návod k použití (tento dokument)
4. Nastavení
4.1 Nasazení objektivu na fotoaparát
- Ujistěte se, že je fotoaparát vypnutý.
- Remove the rear lens cap from the VILTROX 25mm F1.7 Z lens and the body cap from your Nikon Z-mount camera.
- Zarovnejte bílou tečku na tubusu objektivu s bílou tečkou na bajonetu objektivu fotoaparátu.
- Vložte objektiv do bajonetu fotoaparátu a otáčejte jím ve směru hodinových ručiček, dokud nezacvakne. Netlačte na objektiv silou.
This image shows the VILTROX 25mm F1.7 Z lens correctly attached to a Nikon Z-series camera body, ready for use.
4.2 Sejmutí objektivu
- Ujistěte se, že je fotoaparát vypnutý.
- Stiskněte a podržte tlačítko uvolnění objektivu na těle fotoaparátu.
- Rotate the lens counter-clockwise until it detaches from the camera mount.
- Okamžitě nasaďte zadní krytku objektivu na objektiv a krytku těla na fotoaparát, abyste ochránili snímače a optické členy objektivu před prachem.
4.3 Nasazení sluneční clony objektivu
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 aktualizací firmwaru
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. Ovládání objektivu
5.1 Automatické ostření (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 Manuální ostření (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 Ovládání clony
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 Sample Images
6. Údržba
6.1 Čištění objektivu
- K odstranění prachu a uvolněných částic z povrchu čočky použijte ofukovací kartáč.
- 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.
- Jemně otírejte krouživými pohyby od středu směrem ven.
- Nedotýkejte se čoček prsty.
6.2 Skladování
- Vždy nasaďte přední a zadní krytku objektivu, když objektiv nepoužíváte.
- Čočku skladujte na chladném a suchém místě, mimo dosah přímého slunečního záření a extrémních teplot.
- If storing for extended periods, consider using a dehumidifying cabinet or silica gel packets to prevent mold and fungus growth.
7. Řešení problémů
| Problém | Možná příčina | Řešení |
|---|---|---|
| Fotoaparát nerozpoznál objektiv | 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. |
| Automatické ostření je pomalé nebo nepřesné | 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. |
| Images are blurry or soft | 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. Specifikace
| Funkce | Detail |
|---|---|
| Číslo modelu | 25mmF1.7STM(Z-mount) |
| Ohnisková vzdálenost | 25 mm (ekvivalent 38 mm u APS-C) |
| Maximální clona | f/1.7 |
| Minimální clona | f/16 |
| Držák objektivu | Nikon Z |
| Kompatibilita formátů | APS-C |
| Optický design | 12 Elements in 10 Groups (including HR, ED, ASPH elements) |
| Motor automatického ostření | STM (krokový motor) |
| Minimální zaostřovací vzdálenost | 0.3m (1 ft) |
| Velikost filtru | 52 mm |
| Rozměry (průměr x délka) | 2.22 x 2.52 x 2.52 palce (přibližně) |
| Hmotnost | 180 g (6.3 uncí) |
| Port pro aktualizaci firmwaru | USB-C |
9. Oficiální produktová videa
9.1 VILTROX 25mm f1.7 Z Lens Overview
Toto video poskytuje stručný přehledview 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. Záruka a podpora
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.
Official VILTROX Webmísto: www.viltrox.com