Electronics / Camera Lenses
User Manual for Sigma 20-200mm F3.5-6.3 DG Contemporary Lens
Comprehensive user guide for the Sigma 20-200mm F3.5-6.3 DG Contemporary lens. Includes instructions for lens attachment, focusing modes, zoom operation, lens hood installation, and proper maintenance.
Quick answers from the manual
Quick answer
- The Sigma 20-200mm F3.5-6.3 DG Contemporary is a zoom lens. To operate, attach it to your camera, set the focus mode switch to AF or MF, and rotate the zoom ring to adjust the focal length. Use the zoom lock switch to prevent the lens from extending when not in use. p. 5
Key actions
- Switching focus modes p. 5
- Using the zoom lock p. 5
First start
- Attach the lens to the camera body and set aberration correction to ON (AUTO) in the camera menu. p. 5
Problems and fixes
Lens creep when tilted
Use the Zoom Lock switch at 20mm.
p. 5Technical specifications
| Parameter | Value | Meaning | Pages |
|---|---|---|---|
| Filter Size | 72 mm | Diameter of the filter thread. | p. 5 |
| Weight | 550 g | Total weight of the lens. | p. 5 |
Where to find it in the PDF
- English Instructions p. 5
Table of contents
Quick guide from the manual
This manual provides essential instructions for operating the Sigma 20-200mm F3.5-6.3 DG Contemporary lens. Key operations include attaching the lens to your camera, switching between autofocus (AF) and manual focus (MF), and using the zoom lock switch to prevent lens creep.
Description of the parts
- Filter Attachment Thread: For attaching filters.
- Focus Ring: Used for manual focusing.
- Zoom Ring: Used to adjust the focal length.
- Focus Mode Switch: Toggles between AF and MF.
- Zoom Lock Switch: Prevents the lens from extending when tilted.
- Mount: Connects the lens to the camera body.
- Lens Hood: Reduces flare and ghosting.
Attaching to the camera
Please refer to your camera's instruction manual for specific details on attaching or detaching the lens. Ensure the camera is turned off before attaching. Be careful with the electrical contacts on the lens mount, as scratches or dirt can cause malfunctions.
Focusing
For autofocus, set the focus mode switch on the lens to the AF position. For manual focus, set the switch to the MF position and rotate the focus ring to adjust sharpness.
Zooming and zoom lock
Rotate the rubber grip on the zoom ring to change the focal length. To use the zoom lock, set the zoom ring to 20mm and slide the zoom lock switch to the LOCK position. Always unlock the switch before shooting.
Lens hood
Attach the bayonet-type lens hood by aligning it with the lens and turning it clockwise until it stops. For storage, the hood can be removed and attached in reverse position.
Care and storage
- Avoid extreme temperatures and high humidity.
- Store in a cool, dry, well-ventilated place.
- Do not use organic solvents like thinner or benzine for cleaning. Use a soft, moistened lens cloth or lens tissue.
- The lens has a dust and splash-resistant structure, but it is not waterproof. Avoid exposure to large amounts of water.
- If moving from a cold environment to a warm room, keep the lens in a case until it reaches room temperature to prevent condensation.
Technical specifications
- Lens construction: 14 – 18 elements
- Angle of View: 94.5° – 12.3°
- Minimum Aperture: F 22 – 40
- Minimum Focusing Distance: 25 – 65 cm (16.5 cm at 28mm)
- Maximum Magnification Ratio: 1:2 (at 28 – 85 mm)
- Filter Size: 72 mm
- Dimensions: 77.2 x 115.5 mm
- Weight: 550 g
Practical help
Common problems
Lens extends automatically when tilted down
Set the zoom ring to 20mm and engage the Zoom Lock switch to the LOCK position.
Condensation or fogging on the lens
When moving from a cold to a warm environment, keep the lens in a case until it gradually reaches room temperature.
Autofocus not functioning
Ensure the focus mode switch on the lens is set to AF and check your camera's focus settings.
Before use
- Ensure the lens mount is clean and free of debris.
- Set aberration correction to ON (AUTO) in the camera menu if applicable.
- Verify the lens hood is securely attached.
- Check that the camera is turned off before attaching the lens.
Specs in practice
- Minimum Focusing Distance
- The closest distance at which the lens can focus, varying by focal length (25-65cm).
- Maximum Magnification Ratio
- The ratio of the size of the subject on the sensor to its actual size (1:2).
Images and diagrams
- Fig 1: Overview of lens components including filter thread, focus ring, and zoom ring.
- Fig 2/3: Focus mode switch positions for AF and MF.
- Fig 4: Operation of the zoom lock switch.
- Fig 5/6: Attaching and storing the lens hood.
Model compatibility
- Designed for L-mount cameras.
- Dust and splash-resistant structure, but not waterproof.
Manual page author
Emily Carter
User documentation editor
Prepares concise manual descriptions and highlights the most useful setup, operation, and maintenance information for readers.