Sony 11-18mm f/4.5-5.6 DT Wide Angle

Highlights

  • APS-C 35mm Equivalent: 16.5-27mm
  • Aperture Range: f/4.5-29
  • For DT Alpha & Minolta DSLRs
  • Optimized for APS-C Image Sensors
  • Extra-Low Dispersion (ED) Elements
  • 3x Aspherical Glass Lens Elements
  • Internal Focusing System
  • Minimum Focus Distance: 9.8″
  • 7x Circular Aperture Blades
  • Filter Diameter: 77mm

Overview

The 11-18mm f/4.5-5.6 DT Wide Angle Zoom Lens from Sony is a DT-series Alpha lens that has been optimized for cropped image sensors, and as a result it is not recommended for use with larger full-frame cameras. Its 11-18mm focal length is the 35mm equivalent of a 16.5-27mm lens. It is constructed of 15 elements in 12 groups – three of them being aspherical glass elements, with additional Extra-low Dispersion (ED) glass elements – which all help to deliver sharp, clear photos throughout the zoom range. It has a minimum focusing distance of 9.8″ and a front-end filter diameter of 77mm.

APS-C 35mm Equivalent: 16.5-27mm

This wide 11-18mm lens has a 1.6x zoom factor, but its viewing angle becomes the 35mm equivalent of a 16.5-27mm lens when attached to the cropped APS-C cameras it was designed for.

Optimized For APS-C Size / DT-Format Alpha & Minolta DSLRs

Intended for smaller, cropped Sony Alpha cameras, DT lenses employ an optical system that is specifically designed for digital cameras which incorporate an APS-C size image sensor.

Extra-Low Dispersion (ED) Elements

To reduce chromatic aberrations, most noticeable when zoomed all the way in, the extra-low dispersion glass corrects for certain wavelengths of light – producing sharper images with truer colors.

3x Aspherical Glass Lens Elements

These precision lens elements correct distortion for sharper, more visually accurate images across the entire zoom range of the lens.

Internal Focusing System

Internal lens elements move, so the overall length does not change, creating a lens that focuses more quickly and doesn’t change balance.

7x Circular Aperture Blades

Circular aperture blades produce smooth, rounded bokeh background effects when capturing spot-light sources in your pictures. Because the aperture blades form a near circle at the wide openings used for low-light shots, spot-light sources have a pleasing circular defocused effect.

Filter Diameter: 77mm

The 77mm front filter thread does not rotate, allowing rotating polarizing filters to be used.

Specifications

Principal specifications
Lens type Zoom lens
Max Format size APS-C / DX
Focal length 11–18 mm
Image stabilization No
Lens mount Sony/Minolta Alpha
Aperture
Maximum aperture F4.5–5.6
Minimum aperture F22–29
Aperture ring No
Number of diaphragm blades 7
Aperture notes Circular aperture
Optics
Elements 15
Groups 12
Focus
Minimum focus 0.25 m (9.84)
Maximum magnification 0.125×
Autofocus Yes
Motor type Screw drive from camera
Full time manual Unknown
Focus method Internal
Distance scale Yes
DoF scale Yes
Physical
Weight 360 g (0.79 lb)
Diameter 83 mm (3.27)
Length 81 mm (3.17)
Colour Black
Zoom method Rotary (extending)
Filter thread 77.0 mm
Hood supplied Yes
Hood product code petal hood
Tripod collar No