Sigma 40mm f/1.4 DG HSM Art Lens for Sony E Instruction Manual

1. Introduction

This manual provides detailed instructions for the proper use and care of your Sigma 40mm f/1.4 DG HSM Art Lens for Sony E-mount cameras. Please read this manual thoroughly before using the lens to ensure optimal performance and longevity. This lens is designed to deliver high optical performance, suitable for various photographic applications.

2. Product Overview

Familiarize yourself with the various parts of your Sigma 40mm f/1.4 DG HSM Art Lens.

Figure 2.1: Front view of the Sigma 40mm f/1.4 DG HSM Art Lens. This image displays the lens barrel, focus ring, and the front element.

Figure 2.2: Side view of the lens, highlighting the AF/MF switch and the distance scale window. The focus ring is prominently visible.

Figure 2.3: Close-up view of the front optical element of the lens, showing its large diameter.

Figure 2.4: Rear view of the lens, displaying the Sony E-mount interface and the rear optical element.

Lens Components:

• Focus Ring: Used for manual focusing.
• AF/MF Switch: Toggles between Autofocus and Manual Focus modes.
• Distance Scale Window: Displays the current focus distance.
• Lens Mount: Connects the lens to the camera body.
• Lens Hood Attachment: Point for attaching the included lens hood.

3. Setup

3.1 Attaching the Lens

1. Ensure both the camera and lens are powered off.
2. Remove the rear lens cap from the lens and the body cap from the camera.
3. Align the mounting index (white dot) on the lens with the mounting index on the camera body.
4. Insert the lens into the camera mount and rotate it clockwise until it clicks into place.

3.2 Attaching the Lens Hood

The included lens hood helps to block extraneous light and protect the front of the lens. Align the red dot on the lens hood with the red dot on the front of the lens, then rotate the hood clockwise until it locks securely.

4. Operating Instructions

4.1 Focus Mode Selection

• Autofocus (AF): Slide the AF/MF switch on the lens to the "AF" position. The camera will automatically focus when the shutter button is half-pressed.
• Manual Focus (MF): Slide the AF/MF switch to the "MF" position. Rotate the focus ring on the lens to adjust focus manually. The distance scale window will indicate the current focus distance.

4.2 Aperture Control

Aperture settings are controlled via the camera body. Refer to your camera's instruction manual for details on adjusting aperture.

4.3 General Usage Tips

• Always hold the camera and lens securely.
• Avoid pointing the lens directly at the sun or other strong light sources for extended periods, as this can damage the camera's sensor.
• When not in use, attach the front and rear lens caps to protect the optical elements.

5. Maintenance

5.1 Cleaning the Lens

• Use a blower brush to remove dust and loose particles from the lens surface.
• For smudges or fingerprints, use a clean, soft microfiber cloth specifically designed for optical lenses, along with a small amount of lens cleaning solution. Apply the solution to the cloth, not directly to the lens.
• Clean the lens barrel with a soft, dry cloth.
• Never use organic solvents like paint thinner or benzene to clean the lens.

5.2 Storage

• Store the lens in a cool, dry place, away from direct sunlight and high humidity.
• Attach both front and rear lens caps when storing.
• If storing for an extended period, consider using a desiccant to prevent mold growth.

6. Troubleshooting

7. Specifications

8. Warranty and Support

This Sigma lens is manufactured by Sigma Corporation of America. For warranty information, service, or technical support, please refer to the official Sigma website or contact their customer service department. Keep your proof of purchase for warranty claims.

Manufacturer: Sigma Corporation of America