1. Introduction
This manual provides essential information for the proper use and care of your Rokinon 10mm F2.8 ED AS NCS CS Ultra Wide Angle Lens. Designed specifically for Fuji X Mount digital cameras, this prime lens offers an ultra-wide 110-degree angle of view and a fast F2.8 aperture, making it suitable for architectural, landscape, and astrophotography. It incorporates Nano Crystal Anti-Reflection Coating System (NCS), Aspherical Lens Elements (AS), and Extra Low Dispersion (ED) glass for enhanced optical performance.
Figure 1: Rokinon 10mm F2.8 ED AS NCS CS Ultra Wide Angle Lens with lens hood attached.
Video 1: Overview of the Rokinon 10mm F2.8 Ultra Wide Angle Lens. This video provides a brief visual introduction to the lens's features and design.
2. Setup
2.1 Attaching the Lens
- Ensure your camera is powered off.
- Remove the rear lens cap from the Rokinon 10mm F2.8 lens and the body cap from your Fuji X Mount 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 and rotate it clockwise until it clicks into place. Do not force the lens.
2.2 Removing the Lens
- Ensure your camera is powered off.
- Press and hold the lens release button on your camera body.
- Rotate the lens counter-clockwise until it detaches from the camera body.
- Immediately attach the rear lens cap to the lens and the body cap to the camera to protect them from dust and damage.
3. Operating the Lens
The Rokinon 10mm F2.8 is a manual focus, manual aperture lens. This means you will control both focus and aperture settings directly on the lens.
3.1 Focusing
- Manual Focus Ring: Rotate the large, textured ring on the front of the lens to adjust focus.
- Focus Scale: The lens features a distance scale in both meters (m) and feet (ft) to assist with precise focusing.
- Camera Focus Aids: Utilize your camera's focus peaking and magnification features for accurate manual focusing, especially when shooting at wider apertures.
3.2 Aperture Control
- Aperture Ring: The lens has a dedicated aperture ring with markings from F2.8 to F22. Rotate this ring to select your desired aperture.
- Click Stops: The aperture ring features distinct click stops for tactile feedback, allowing you to adjust aperture without looking away from the viewfinder.
- Exposure: Adjust your camera's shutter speed and ISO settings to achieve correct exposure based on your chosen aperture.
3.3 Using the Lens Hood
- The integrated petal-type lens hood helps to reduce flare and ghosting caused by stray light.
- Ensure the lens hood is properly oriented and securely attached during use.
4. Maintenance
4.1 Cleaning the Lens
- Use a lens blower to remove dust and loose particles from the lens surfaces.
- For smudges or fingerprints, use a clean, soft 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.
- Wipe gently in a circular motion from the center outwards.
- Never use abrasive materials or harsh chemicals.
4.2 Storage
- Always attach the front and rear lens caps when the lens is not in use.
- Store the lens in a cool, dry place, away from direct sunlight and extreme temperatures.
- If storing for extended periods, consider using a dehumidifying agent to prevent mold growth.
5. Troubleshooting
- Blurry Images: Ensure the lens is properly focused using your camera's focus aids. Check that the aperture is set appropriately for your desired depth of field.
- Dark Images: Verify that your camera's exposure settings (shutter speed, ISO) are correctly adjusted for the chosen aperture and lighting conditions.
- Lens Not Attaching: Confirm that the lens mount is clean and free of obstructions. Ensure proper alignment of the red dots and rotate until it clicks.
- Dust on Sensor/Lens: Use a lens blower to remove dust. If dust persists on the sensor, consult your camera's manual for sensor cleaning procedures or seek professional service.
6. Specifications
| Feature | Detail |
|---|---|
| Brand | Rokinon |
| Model Number | 10M-FX |
| Focal Length | 10mm |
| Maximum Aperture | F2.8 |
| Lens Type | Ultra Wide Angle |
| Compatible Mountings | Fujifilm X |
| Minimum Focus Distance | 9.5 inches (0.24m) |
| Angle of View | 110 degrees (on APS-C) |
| Optical Construction | Includes Aspherical Lens Elements (AS) and Extra Low Dispersion (ED) glass |
| Coating | Nano Crystal Anti-Reflection Coating System (NCS) |
| Product Dimensions | 4.1 x 3.38 x 3.38 inches |
| Item Weight | 1.28 pounds |
7. Warranty and Support
For warranty information and technical support, please refer to the official Rokinon website or contact your authorized Rokinon dealer. Keep your proof of purchase for any warranty claims.
- Online Resources: Visit the Rokinon Store on Amazon for additional product information and resources.
- Customer Service: Contact Rokinon customer service for assistance with product registration, troubleshooting, or repair services.
