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Black SIGMA 10-20mm f/4-5.6 EX DC zoom lens, cylindrical barrel with focus ring, model 201205

SIGMA

SIGMA 10-20mm f/4-5.6 EX DC 201205 camera lens

SKU CH-Q350-CCAGF

Ultra-wide 10-20mm zoom for Minolta and Sony DSLRs with ring-type ultrasonic focus, 24cm close focus and SLD glass to control colour aberration

  • TypeZoom Lens
  • ColorBlack
  • Focus TypeRing-type ultrasonic
  • Ultra-wide 10-20mm zoom for expansive interior and landscape shots
  • Ring-type ultrasonic focus motor delivers fast, quiet autofocus performance
  • Three SLD glass elements minimise chromatic aberration across the frame
  • Multilayer coating suppresses flare and ghosting in high-contrast scenes
  • Close 24cm focusing distance allows dramatic near-subject perspectives

Ultra-wide zoom for APS-C DSLRs

This Sigma 10-20mm f/4-5.6 EX DC lens covers a 10 to 20mm focal range on Minolta and Sony A-mount DSLR cameras. It uses three SLD glass elements and a multilayer coating to control colour aberration, flare and ghosting. The ring-type ultrasonic motor drives autofocus, and the minimum focusing distance is 24cm. It is built for photographers who need an expansive field of view on an APS-C sensor.

Suited to interior and landscape shooters on A-mount

The optic fits photographers who work in tight interiors, architecture or wide landscapes with a compatible Sony or Minolta DSLR. It is not for users of other lens mounts, nor for anyone who requires a constant aperture throughout the zoom range. Buyers who need a longer telephoto reach or a faster maximum aperture for low-light work should look at a different lens.

Variable f/4-5.6 maximum aperture

The aperture opens to f/4 at the 10mm end and narrows to f/5.6 at 20mm, which determines the depth of field and exposure latitude available across the zoom range. This variable design keeps the lens compact but limits light gathering at the long end compared with constant-aperture alternatives. Check that your shooting style accepts this aperture behaviour before purchasing.

Highlights

  • Ultra-wide 10-20mm zoom for expansive interior and landscape shots
  • Ring-type ultrasonic focus motor delivers fast, quiet autofocus performance
  • Three SLD glass elements minimise chromatic aberration across the frame
  • Multilayer coating suppresses flare and ghosting in high-contrast scenes
  • Close 24cm focusing distance allows dramatic near-subject perspectives

Specifications

TypeZoom Lens
ColorBlack
Focus TypeRing-type ultrasonic
BrandSIGMA
Model201205

Questions about this item

What comes in the box with the Sigma 10-20mm f/4-5.6 EX DC lens and what must be purchased separately?

The box contains the lens with front and rear caps; a camera body with a compatible Sony or Minolta AF mount is required separately.

Which focal length range suits interior and landscape shots with this lens?

The 10-20mm ultra-wide zoom covers expansive interiors at 10mm and tighter architectural details at 20mm on APS-C sensors.

How close can the lens focus when shooting small foreground subjects?

The minimum focusing distance is 24cm, allowing close-ups of nearby objects while retaining the wide field of view.

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