1. Introduction
This manual provides comprehensive instructions for the VILTROX AF 28mm F4.5 XF Pancake Lens. Designed for Fujifilm X-mount APS-C mirrorless cameras, this ultra-compact and lightweight lens offers a wide-angle perspective, making it ideal for street photography, travel, and everyday use. Its innovative features, including a built-in sliding lens cap and precise autofocus, ensure a seamless photographic experience. Please read this manual thoroughly before using the lens to ensure proper operation and maintenance.
Image 1.1: The VILTROX AF 28mm F4.5 XF Pancake Lens shown mounted on a Fujifilm X-M5 mirrorless camera, highlighting its compact profile.
2. What's in the Box
Upon opening the package, please verify that all the following items are included:
- VILTROX AF 28mm F4.5 XF Pancake Lens
- Warranty Card
- Instruction Manual (Quick Start Guide)
Image 2.1: The VILTROX AF 28mm F4.5 XF Pancake Lens, its packaging, warranty card, and quick start guide.
3. Key Features
- Ultra-Thin & Feather-Light Design: Weighing only 60g and measuring 15.3mm thick, this lens is designed for maximum portability, making it the slimmest and lightest XF lens in the VILTROX lineup.
- Built-In Sliding Lens Cap: Features a unique toggle-style sliding cap for convenient and secure protection of the front element, eliminating the need for a separate lens cap.
- High-Precision Autofocus: Equipped with a fast and silent autofocus motor, ensuring precise focus acquisition for capturing fleeting moments.
- Premium Optical Design: Composed of 6 elements in 6 groups, including 2 ED (Extra-low Dispersion) and 2 aspherical lenses, delivering sharp images with excellent contrast and vibrant colors.
- Starburst Effect Capability: The innovative front lens design allows for the creation of distinct starburst effects when shooting point light sources.
- USB Firmware Upgrade: An integrated USB-C port enables easy firmware updates, ensuring continued compatibility and performance enhancements.
- Durable Metal Build: Constructed with an all-metal barrel for enhanced durability and a premium feel.
4. Setup
4.1 Mounting the Lens
- Ensure your Fujifilm X-mount camera is powered off.
- Remove the rear lens cap from the VILTROX AF 28mm F4.5 XF lens and the body cap from your camera.
- Align the red dot on the lens barrel with the red dot on your camera's lens mount.
- Gently insert the lens into the camera mount.
- Rotate the lens clockwise until it clicks into place, indicating it is securely locked.
- Power on your camera.
Image 4.1: Rear view of the VILTROX AF 28mm F4.5 XF lens, displaying the Fujifilm X-mount interface and electronic contacts.
4.2 Initial Checks
After mounting the lens, perform the following checks:
- Verify that the lens is firmly attached and does not wobble.
- Ensure the camera recognizes the lens (check the display for aperture information).
- Test the autofocus by pointing the camera at an object and half-pressing the shutter button.
- Confirm the sliding lens cap operates smoothly.
5. Operating the Lens
5.1 Autofocus Operation
The VILTROX AF 28mm F4.5 XF lens features a fast and silent autofocus motor. To use autofocus:
- Set your camera's focus mode to AF (Autofocus).
- Point the camera at your subject and half-press the shutter button to activate autofocus.
- The lens will quickly and quietly adjust focus.
- For optimal performance, ensure sufficient light and contrast in your scene.
5.2 Using the Sliding Lens Cap
The integrated sliding lens cap provides convenient protection for the front element.
- To cover the lens: Slide the cap mechanism forward until it fully covers the front element.
- To uncover the lens: Slide the cap mechanism backward until the front element is completely exposed.
Image 5.1: Front view of the VILTROX AF 28mm F4.5 XF lens, showcasing its unique integrated sliding lens cap.
5.3 Firmware Updates
The lens is equipped with a USB-C port for firmware updates, ensuring compatibility with future camera models and performance improvements.
- Locate the USB-C port on the rear of the lens mount.
- Connect the lens to a computer using a USB-C cable (not included).
- Visit the official VILTROX website or refer to the provided QR code in the quick start guide for the latest firmware and update instructions.
- A direct link to the instruction manual PDF, which may contain firmware update information, is available here.
Image 5.2: Rear view of the VILTROX AF 28mm F4.5 XF lens, highlighting the USB-C port for firmware updates.
6. Maintenance
6.1 Cleaning the Lens
- Lens Elements: Use a lens blower to remove dust and loose particles. For smudges or fingerprints, use a clean, soft microfiber lens cloth and a small amount of lens cleaning solution. Apply solution to the cloth, not directly to the lens.
- Lens Body: Wipe the lens barrel with a soft, dry cloth. For stubborn dirt, a slightly damp cloth can be used, followed by a dry cloth.
- Contacts: Gently wipe the electronic contacts on the lens mount with a clean, dry cloth to ensure proper communication with the camera.
- Do not use harsh chemicals, solvents, or abrasive materials.
6.2 Storage
- Store the lens in a cool, dry place away from direct sunlight and extreme temperatures.
- Always attach the front and rear lens caps when not in use to protect the optical elements.
- If storing for extended periods, consider using a desiccant packet to prevent mold and mildew.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Lens not recognized by camera. | Poor contact between lens and camera; lens not securely mounted. |
|
| Autofocus is slow or inaccurate. | Insufficient light; low contrast subject; dirty lens elements; outdated firmware. |
|
| Images appear blurry or soft. | Improper focus; camera shake; dirty lens. |
|
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | FSJYC-03479 |
| Brand | VILTROX |
| Focal Length | 28mm (Wide Angle) |
| Maximum Aperture | F4.5 |
| Lens Type | Pancake, Prime, Wide Angle |
| Compatible Mountings | Fujifilm X-Mount (APS-C) |
| Optical Construction | 6 elements in 6 groups (including 2 ED, 2 Aspherical lenses) |
| Autofocus | Yes |
| Dimensions (Product) | 7.01 x 7.01 x 7.01 inches |
| Item Weight | 60g (approx. 2.1 ounces) |
| Firmware Update Port | USB-C |
| Special Features | Integrated Sliding Lens Cap, All-metal barrel |
Note: The listed product dimensions and item weight (7.01 x 7.01 x 7.01 inches and 7.1 ounces) from the product specifications typically refer to the packaged item. The lens itself is ultra-thin at approximately 15.3mm and weighs around 60g.
9. Warranty and Support
The VILTROX AF 28mm F4.5 XF Pancake Lens comes with a warranty card included in the packaging. Please refer to the warranty card for specific terms and conditions regarding coverage and duration.
For technical support, firmware updates, or additional product information, please visit the official VILTROX website: VILTROX Official Store.
You may also find detailed instructions and firmware downloads on the VILTROX support page, often linked from the quick start guide or product page.
