Sigma 35mm F1.2 Art DG DN Lens for Sony E User Manual

Introduction

This manual provides detailed instructions for the proper use and care of your Sigma 35mm F1.2 Art DG DN Lens. Designed for full-frame Sony E-mount systems, this wide-angle lens features a maximum aperture of F1.2, offering exceptional low-light performance and shallow depth of field capabilities.

What's in the Box

• Sigma 35mm F1.2 Art DG DN Lens
• Lens Hood Case
• Front Lens Cap
• Rear Lens Cap

Setup

Attaching the Lens to Your Camera

1. Ensure your camera is powered off.
2. Remove the rear lens cap from the lens and the body cap from your camera.
3. Align the mounting index on the lens with the mounting index on your camera body (typically a white dot or line).
4. Insert the lens into the camera mount and rotate it clockwise until it clicks into place. Do not force the lens.
5. Attach the lens hood by aligning its mark with the mark on the front of the lens and twisting until it locks.

Figure 1: Sigma 35mm F1.2 Art DG DN Lens with its included lens hood.

Operating the Lens

Focus Mode Switch (AF/MF)

The lens features a switch to select between Autofocus (AF) and Manual Focus (MF). Slide the switch to your desired mode. In AF mode, the camera will automatically focus. In MF mode, you can manually adjust the focus ring on the lens.

Aperture Ring and Click Switch

The lens is equipped with an aperture ring, allowing you to directly control the aperture from F1.2 to F16. An 'A' setting is available for camera-controlled aperture. The 'CLICK ON/OFF' switch allows you to enable or disable the click stops on the aperture ring. Disabling click stops is useful for smooth aperture transitions during video recording.

Figure 2: Side view of the lens, highlighting the AF/MF switch, AFL button, and aperture ring with its click switch.

AFL Button

The AFL (Autofocus Lock) button can be customized via your camera's settings to perform various functions, such as locking focus or activating eye-AF.

Maintenance

Cleaning the Lens

• Use a lens blower to remove dust and loose particles from the lens surface.
• For smudges or fingerprints, apply a small amount of lens cleaning solution to a clean microfiber cloth and gently wipe the lens in a circular motion.
• Never use abrasive materials or harsh chemicals on the lens.

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. Using the provided lens hood case can offer additional protection during storage and transport.

Figure 3: The Sigma 35mm F1.2 Art DG DN Lens, ready for storage with caps on.

Troubleshooting

Common Issues and Solutions

• Lens not recognized by camera: Ensure the lens is securely attached to the camera body and that the camera's firmware is up to date. Clean the lens and camera contacts with a dry, lint-free cloth.
• Autofocus not working: Check that the AF/MF switch on the lens is set to AF. Ensure your camera's focus mode is set to autofocus. Verify there is sufficient light for the autofocus system to operate effectively.
• Image quality issues (softness, aberrations): Ensure the lens is clean and free from smudges. Check that the aperture is set appropriately for your shooting conditions. For optimal sharpness, avoid shooting at the extreme ends of the aperture range unless desired for creative effect.

If you encounter persistent issues, please refer to the official Sigma support website or contact customer service.

Specifications

Figure 4: Diagram illustrating the approximate dimensions of the Sigma 35mm F1.2 Art DG DN Lens.

Warranty and Support

For detailed warranty information, please refer to the official Sigma website or the warranty card included with your product. For technical support, service, or inquiries, please visit the Sigma Global Support page.