Rokinon FE75MFT-B 7.5mm F3.5 UMC Fisheye Lens Instruction Manual

Nhanganyaya

The Rokinon 7.5mm F3.5 UMC Fisheye Lens is specifically designed for Micro Four Thirds camera systems, offering an ultra-wide 180-degree diagonal angle of view. This compact lens features a robust construction and advanced optical design, engineered to deliver sharp images and accurate color reproduction. Its manual operation provides precise control for various photographic applications.

Mufananidzo 1: Mberi view of the Rokinon FE75MFT-B Fisheye Lens (Black).

Product Overview

Key Features

• 180-Degree Angle of View: Captures an expansive field of vision, characteristic of fisheye lenses.
• Optical Construction: Features 9 elements in 7 groups for optimized image quality.
• Aperture Range: Adjustable from F3.5 to F22 for versatile lighting conditions.
• Minimum Focusing Distance: Achieves close-up shots at 3.5 inches (0.09m).
• Compact Design: Approximately 1.9 inches long, making it highly portable.
• Ultra Multi-Coating (UMC): Reduces flare and ghosting for improved contrast and color fidelity.
• Built-in Lens Hood: Integrated petal-type lens hood helps to minimize stray light.

Figure 2: Visual representation of the Rokinon 7.5mm Fisheye Lens's optical and design features.

Zvinotsanangurwa

Gadzirira

Kubatanidza Lens

1. Ita shuwa kuti kamera yako yakadzimwa.
2. Align the red dot on the lens barrel with the corresponding red dot on your camera's lens mount.
3. Isa lenzi zvinyoro nyoro muchibatiso chekamera.
4. Rotate the lens clockwise until it clicks securely into place.
5. Bvisa chivharo chelenzi chemberi.

Mufananidzo 3: Rutivi view of the Rokinon 7.5mm Fisheye Lens, showing the lens mount.

Kubvisa Lenzi

1. Ita shuwa kuti kamera yako yakadzimwa.
2. Batanidza kumberi nekumashure kwema lens caps kuchengetedza ma lens zvinhu.
3. Dzvanya wobata bhatani rekuburitsa lenzi riri mumuviri wekamera yako.
4. Tenderedza lenzi uchitarisa wachi kusvika yabva pane kamera.
5. Store the lens in its protective pouch.

Kushandisa Lens

This Rokinon lens is a manual focus and manual aperture lens. It does not have electronic contacts to communicate with the camera body. Therefore, all focus and aperture adjustments must be made directly on the lens.

Manual Focus

The focus ring is located on the front part of the lens barrel. Rotate this ring to adjust the focus. For Micro Four Thirds cameras, it is often recommended to set the camera to a 'No Lens' or 'Shoot Without Lens' mode in the camera's menu to enable shooting with manual lenses.

Due to the extremely wide angle of view and inherent deep depth of field of a fisheye lens, precise focusing is often less critical. For many shots, especially landscapes or street photography, setting the focus to infinity (∞) or a hyperfocal distance can keep most of the scene in acceptable focus.

Mufananidzo 4: Angled view of the lens, showing the manual focus and aperture rings.

Aperture Control

The aperture ring is located closer to the camera body. Rotate this ring to select your desired aperture (F3.5 to F22). Wider apertures (smaller f-numbers like F3.5) allow more light and create shallower depth of field, while narrower apertures (larger f-numbers like F22) allow less light and create greater depth of field.

Yakavakwa-mukati Lens Hood

The lens features a permanently attached petal-type lens hood. This hood is designed to block stray light from entering the lens, reducing flare and ghosting, and also provides some physical protection to the front element.

Mufananidzo 5: Mberi view of the lens, highlighting the built-in petal-type lens hood.

Inoenderana Makamera

This lens is compatible with Micro Four Thirds (MFT) camera systems, including models from Olympus PEN and Panasonic Lumix G series. Ensure your camera is set to allow shooting without a lens attached, as this is a fully manual lens.

Maintenance

Kuchenesa Lens

• Shandisa jira re microfiber rakapfava, risina jira rakagadzirirwa nzvimbo dzinopenya.
• Kana paine tsvina yakaoma, shandisa mvura shoma yekuchenesa lenzi inoiswa pajira, kwete zvakananga kune lenzi.
• Use a blower brush to remove dust and loose particles before wiping.
• Dzivisa kubata zvinhu zvegirazi neminwe yako.

Storage

• Always attach both front and rear lens caps when not in use.
• Chengeta lenzi munzvimbo yakaoma, inotonhorera, kure nezuva rakananga uye tembiricha yakanyanya.
• Kana ukachengeta kwenguva yakareba, funga nezvekushandisa mushonga unobvisa hunyoro kudzivirira kukura kwefungus.

Kugadzirisa matambudziko

Matambudziko Anowanikwa uye Mhinduro

• Camera not recognizing lens / Shutter not firing: Ensure your Micro Four Thirds camera is set to 'Shoot Without Lens' or a similar setting in its menu. Consult your camera's manual for specific instructions.
• Mifananidzo inoita seisina kujeka: Verify that the focus ring is correctly adjusted for your subject distance. For wide-angle shots, try setting the focus to infinity (∞).
• Guruva pamifananidzo: Clean the lens elements as described in the Maintenance section. If dust persists, it may be on the camera sensor, requiring professional cleaning.
• Vignetting or dark corners: This is a common characteristic of fisheye lenses, especially at wider apertures. It can often be corrected in post-processing software.

Warranty uye Support

The Rokinon FE75MFT-B 7.5mm F3.5 UMC Fisheye Lens typically comes with a 1-year limited warranty from the date of purchase. Please retain your proof of purchase for warranty claims.

For technical support, service, or detailed warranty information, please visit the official Rokinon webtaura nebazi ravo rebasa revatengi. Ruzivo rwekuonana runowanzo kuwanikwa pamapakeji ezvigadzirwa kana emugadziri website.

Official Product Video