Introduction
Thank you for choosing the 7artisans AF 35mm F1.8 Auto Focus Camera Lens. This full-frame, lightweight wide-angle lens is designed for various photographic applications, including portraiture, travel, street photography, and video creation. It offers fast, silent, and precise autofocus capabilities. This manual provides essential information for the proper setup, operation, and maintenance of your new lens.
Figure 1: Overview of the 7artisans AF 35mm F1.8 lens and its main features.
What's in the Box
Please check that all the following items are included in your package:
- AF 35mm F1.8 lens x 1
- Lens front cover x 1
- Lens back cover x 1
- Instruction Manual x 1
- Lens hood x 1
- Type-C cable x 1
- Lens packaging box x 1
Figure 2: Product parameters and included accessories.
Product Overview
The 7artisans AF 35mm F1.8 lens features a robust metal body and an ergonomically designed structure for comfortable handling. Key controls include an AF/MF focus mode switch and a customizable Fn button.
Figure 3: Detailed view of lens controls and weight.
Figure 4: Features including USB-C port, lens hood, and construction materials.
Setup
Attaching the Lens
- Ensure your camera is turned off.
- Remove the rear lens cap and the camera body cap.
- Align the mounting index (red dot) on the lens with the corresponding index on your camera body.
- Insert the lens into the camera mount and rotate it clockwise until it clicks into place. Do not force the lens.
Detaching the Lens
- Ensure your camera is turned off.
- While pressing the lens release button on your camera body, rotate the lens counter-clockwise until it stops.
- Carefully remove the lens from the camera body.
- Attach the front and rear lens caps to protect the lens elements.
Operating the Lens
Autofocus (AF) and Manual Focus (MF)
This lens supports both autofocus and manual focus. Use the AF/MF switch on the lens barrel to select your desired mode.
- Autofocus (AF): The lens features a fast and silent STM stepping motor for precise focusing. It supports advanced features like human eye/face recognition, dynamically capturing subtle expressions.
- Manual Focus (MF): For precise control, switch to MF mode and rotate the focus ring to adjust focus manually.
Figure 5: Fast and precise autofocus with eye/face recognition.
Aperture Control
The lens features a wide F1.8 aperture, allowing for excellent low-light performance and beautiful background blur (bokeh). The aperture can be adjusted linearly for smooth transitions during video recording.
Figure 6: Examples of F1.8 bokeh and nightscape performance.
Video Performance
The 35mm focal length provides a natural perspective suitable for daily recording, interviews, and vlogs. The lens supports up to 8K video shooting and minimizes focus breathing, ensuring smooth focus transitions.
Figure 7: Demonstrating the lens's suitability for video creation.
Optical Design and Sharpness
The lens features an 8-group, 11-element optical structure, including 2 aspherical, 2 high-refractive, and 1 low-dispersion lens. This design ensures superb resolution and sharpness, even at wide-open apertures, and is capable of meeting the demands of 60MP full-frame cameras.
Figure 8: Optical structure and sharpness demonstration.
Customizable Function Button (Fn)
The lens is equipped with a customizable Fn button. This button can be programmed via your camera's menu to access frequently used functions or perform shortcut operations, enhancing your shooting efficiency.
Firmware Upgrade
The lens includes a USB Type-C interface for firmware upgrades. This allows you to keep your lens updated with the latest performance enhancements and compatibility improvements. Refer to the 7artisans official website for the latest firmware and instructions.
Maintenance
Cleaning the Lens
- Always use a soft, clean microfiber cloth specifically designed for optical surfaces.
- Gently blow off any loose dust or particles from the lens surface using a blower brush before wiping.
- For stubborn smudges, apply a small amount of lens cleaning solution to the cloth (not directly to the lens) and wipe in a circular motion from the center outwards.
- Avoid touching the lens elements with your fingers.
Storage
- When not in use, always attach the front and rear lens caps.
- 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.
Troubleshooting
Lens Not Attaching Properly
- Ensure the lens and camera mount are clean and free of obstructions.
- Verify correct alignment of the mounting indexes.
- Do not force the lens; if it doesn't click, re-align and try again.
Autofocus Issues
- Check if the lens is set to AF mode using the AF/MF switch.
- Ensure there is sufficient light and contrast in your subject for the autofocus system to work effectively.
- Clean the electronic contacts on both the lens and camera body with a clean, dry cloth.
- Ensure camera firmware and lens firmware are up to date.
Image Quality Concerns
- Ensure the lens elements are clean.
- Check camera settings (ISO, shutter speed, aperture) for optimal exposure.
- Verify that the lens is securely mounted to the camera.
Specifications
| Parameter | Value |
|---|---|
| Model | AF 35mm F1.8 |
| Focal Length | 35mm |
| Frame Type | Full Frame |
| Aperture Range | F1.8 - F16 |
| Optical Construction | 11 elements in 8 groups |
| Weight (E-mount) | Approx. 426g |
| Focusing | Autofocus / Manual |
| Mount Type | E / Z / L |
| Focus Range | 0.4m - ∞ |
| Filter Size | Φ62mm |
| Angle of View | 64° |
| Diaphragm Blades | 11 pcs |
| Lens Type | Standard Prime lens |
| Lens Material | Metal |
Warranty and Support
7artisans products are manufactured to high quality standards and are guaranteed against manufacturing defects. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official 7artisans website.
For technical support, troubleshooting assistance, or service inquiries, please contact 7artisans customer service through their official website or authorized distributors. Please have your product model and purchase information ready when contacting support.
