Indledning
The Rokinon 24mm F1.4 Aspherical Wide Angle Lens is a high-quality manual focus lens designed for various camera mounts, including Canon EF. It features a large f/1.4 aperture, making it ideal for low-light photography and achieving shallow depth of field. Constructed with 13 elements in 12 groups, including aspherical lenses, it delivers excellent optical performance. This lens is versatile, suitable for street, landscape, architectural, and astrophotography on full-frame cameras, and serves as a perfect lens for journalistic and landscape photography on DX sensors.
Hvad er der i æsken
- Rokinon 24mm f/1.4 ED Aspherical Lens
- Frontlinsedæksel
- Bageste objektivdæksel
- Modlysblænde
- Bæretaske
- Brugervejledning (dette dokument)
- Garantikort
Produkt overview
Figur 1: Forside view of the Rokinon 24mm f/1.4 lens with its lens hood attached. This image highlights the wide aperture and the robust build of the lens.
Figur 2: Bagside view of the Rokinon 24mm f/1.4 lens, showcasing the camera mount. This view is important for understanding how the lens connects to your camera body.
The Rokinon 24mm f/1.4 lens features a durable metal barrel, a wide, ribbed manual focus ring for precise adjustments, and an aperture ring with clear f-stop markings. The lens includes a removable petal-shaped lens hood to minimize flare and protect the front element. The rear mount is designed for secure attachment to compatible camera bodies.
Opsætning
Fastgøring af objektivet
- Ensure your camera is turned SLUKKET before attaching or detaching any lens.
- Remove the rear lens cap from the Rokinon 24mm lens and the body cap from your camera.
- Juster den røde prik på objektivhuset med den tilsvarende røde prik på kameraets objektivfatning.
- Gently insert the lens into the camera mount and rotate it clockwise (for Canon EF mount) until it clicks into place. Do not force the lens.
- Attach the front lens cap when the lens is not in use to protect the front element.
Montering af modlysblænden
- Align the white dot on the lens hood with the white dot on the front of the lens barrel.
- Twist the hood clockwise until it locks securely into place.
- To store, the hood can be reversed and mounted onto the lens.
Betjening af objektivet
Manuel fokus
This is a manual focus lens. To achieve sharp focus:
- Indstil dit kamera til Manuel fokus (MF) mode.
- Kig igennem viewfinder eller brug Live View på dit kameras LCD-skærm.
- Rotate the wide, ribbed focus ring on the lens until your subject appears sharp. Many modern cameras offer focus peaking or magnification aids in Live View to assist with precise manual focusing.
- The focus distance scale on the lens barrel provides an indication of the current focus distance in meters and feet.
Justering af blænde
The aperture is adjusted directly on the lens using the aperture ring.
- Rotate the aperture ring to select your desired f-stop (e.g., f/1.4, f/2.8, f/5.6).
- A smaller f-number (e.g., f/1.4) indicates a wider aperture, allowing more light to enter the lens and producing a shallower depth of field (more background blur).
- A larger f-number (e.g., f/22) indicates a narrower aperture, allowing less light and producing a greater depth of field (more of the scene in focus).
- Note that your camera may not display the selected aperture value as this is a manual lens without electronic contacts.
Opretholdelse
Proper care and maintenance will ensure the longevity and optimal performance of your Rokinon 24mm lens.
- Rengøring af linseelementerne: Use a soft, lint-free microfiber cloth specifically designed for optics. For stubborn smudges, use a small amount of lens cleaning solution applied to the cloth, not directly to the lens. Always remove dust and loose particles with a blower brush before wiping.
- Rengøring af linsehuset: Wipe the lens barrel with a clean, dry cloth. Avoid using harsh chemicals or solvents.
- Opbevaring: Store the lens in a cool, dry place away from direct sunlight and extreme temperatures. Use the provided lens caps and carrying pouch to protect it from dust and scratches. If storing for extended periods, consider using a dehumidifying cabinet to prevent mold growth.
- Håndtering: Avoid dropping or subjecting the lens to strong impacts. Do not touch the glass elements with your fingers.
Fejlfinding
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Billederne er slørede/ude af fokus. | Forkert manuel fokusering. | Ensure camera is set to MF. Use Live View magnification or focus peaking for precise focusing. Practice manual focusing. |
| Objektivet er ikke fastgjort ordentligt til kameraet. | Forkert justering eller blokering. | Ensure red dots are aligned. Check for any debris on the lens mount or camera mount. Do not force. |
| Dark corners (vignetting) in images. | Normal for wide-angle lenses, especially at wide apertures. | This is a characteristic of some wide-angle lenses. It can often be corrected in post-processing software. Stopping down the aperture (e.g., to f/2.8 or f/4) can also reduce vignetting. |
| Dust or smudges on lens elements. | Forkert håndtering eller opbevaring. | Clean the lens elements carefully using a blower brush and a microfiber cloth. Refer to the Maintenance section. |
Specifikationer
| Feature | Detalje |
|---|---|
| Mærke | Rokinon |
| Modelnummer | RK24M-C |
| Brændvidde | 24 mm |
| Maksimal blænde | f/1.4 |
| Minimum blænde | f/22 |
| Linsetype | Wide Angle, Aspherical |
| Kompatible monteringer | Canon EF (as per this model) |
| Linsekonstruktion | 13 elementer i 12 grupper (2 asfæriske linser) |
| Vinkel på View | 84 grader |
| Minimum fokuseringsafstand | 0.984 fod (0.3 meter) |
| Produktdimensioner | 3.84 x 3.3 x 3.3 tommer |
| Varens vægt | 1.4 pund |
Garanti
The Rokinon 24mm f/1.4 ED Aspherical Lens comes with a standard manufacturer's warranty. Please refer to the warranty card included in your product packaging for specific terms, conditions, and duration of coverage. Retain your proof of purchase for warranty claims.
Støtte
For further assistance, technical support, or service inquiries, please contact Rokinon customer support. You can often find contact information on the manufacturer's official website or through the retailer where you purchased the product. Additionally, the officiel brugermanual (PDF) is available for download for more detailed information.
