Sigma 10-20mm f/3.5 EX DC HSM

Ultra-wide constant aperture zoom for APS-C sensors

Sigma 10-20mm f/3.5 EX DC HSM
79/100
LENS SCORE
Features 16
Performance 16
Durability 16
Price 14
Usability 17
Brand Sigma
Model 202-101

Key Features

SENSOR Designed for APS-C format digital SLR cameras
PROCESSOR N/A
AUTOFOCUS Hyper Sonic Motor (HSM) for fast, quiet internal focusing
PHASE DETECTION Compatible with camera-based phase detection AF systems
VIDEO Supports video AF, though focus noise may be audible
STABILIZATION None
BURST RATE N/A
VIEWFINDER N/A
DISPLAY N/A
CONNECTIVITY N/A
MEMORY CARD N/A
WEATHER SEALING EX series build quality, no formal weather sealing rating
BATTERY LIFE N/A

The Most Important Rings & Switches — Sigma 10-20mm f/3.5 EX DC HSM

Ring / Switch / Control Status Note
Focus Ring ✓ Present Manual focus override available
Zoom Ring ✓ Present Mechanical zoom
Aperture Ring ✗ Not Present Controlled via camera body
AF/MF Switch ✓ Present
Image Stabilisation Switch ✗ Not Present
Focus Limiter Switch ✗ Not Present
Function (L-Fn) Button ✗ Not Present
Zoom Lock Switch ✗ Not Present
Optical Image Stabilisation (OIS) ✗ Not Present
Weather Sealing ✗ Not Present

How-to Use Sigma 10-20mm f/3.5 EX DC HSM

Welcome to the How-to section of the lens. In this Light & Composition University website, each page for a lens has a how-to section and a section for learning. The rings, switches and controls of each lens are placed differently between brands and models. The how-to section helps you operate the lens; however, if you are interested in learning photography, you also need to know what each control changes and why you would change it. Click the “Learn” or scroll down.

Learn & Master Photography with Sigma 10-20mm f/3.5 EX DC HSM

For over a decade, we have been teaching photography following a university standard. No one does it better than us. We have a selection of courses, diplomas, graduate and post-graduate programs, as well as some of our best-selling university press publications, to guide you in the best possible way for your lens. Enroll in the fundamentals and then move to the genres you want to master.

Technical Specification

Focal Length 10-20mm
Maximum Aperture f/3.5
Minimum Aperture f/22
Lens Construction 13 elements in 10 groups
Diaphragm Blades 7
Minimum Focus Distance 24cm (9.4 in)
Maximum Magnification 1:6.6
Filter Size 82mm
Weight 520g
Dimensions 87.3mm x 88.2mm