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Sony 18-70mm f/3.5-5.6 DT A-Mount Autofocus Lens [55]

Model #251070
  • $44.00

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New in box complete with manufacturer's USA warranty. Not previously owned or used.
Essentially new with no signs of use. “Open box.” In manufacturer's packaging with original accessories and instructions. 180-day warranty.
Barely used with virtually no traces of wear. Only the closest inspections will reveal slight use. Lens glass could contain light dust or debris. Excellent picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Lightly used with limited signs of wear. Exceptionally nice but may have slight wear on finish visible. Lens glass could contain light dust or debris. Excellent picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Noticeably used with average signs of wear. Shows moderate wear for the age of the item, with the possibility of blemishes and/or minimal dings. Lens glass may have average dust and zoom/focus ring tension may have slight looseness or tightness overall, but will not affect picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Frequently used with above-average wear. May have dents, dings, or finish loss. Lens glass may have small scratches, dust, and blemishes, and zoom/focus ring tension may have moderate looseness or tightness overall, but should not affect picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Heavily used with extensive visible wear. Equipment is rough, with multiple impressions in the finish, excessive finish loss and brassing. Glass will have marks, fungus and/or heavy/cloudy haze which could affect picture quality. Accessories usually not included, unless noted in listing. Not covered under KEH warranty.
Non-functional or damaged. Equipment will not work. Usable for parts. Not covered under KEH warranty and non-returnable.
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Sony's proven APS-C kit zoom for A-Mount shooters.

The Sony DT 18-70mm f/3.5-5.6 covers the focal range most photographers reach for first, wide enough at 18mm for interiors and landscapes, long enough at 70mm for casual portraits and compressed street shots. The DT designation confirms it's built specifically for APS-C A-Mount bodies, so the image circle is matched to the sensor. That keeps the optics lighter and the price point grounded without compromising coverage where it counts.

The variable aperture runs f/3.5 at the wide end and f/5.6 at 70mm, which is standard territory for a zoom in this class. Pair it with a body that handles ISO well and you have a capable everyday setup. A-Mount's in-body stabilization systems mean this lens benefits from shake reduction without needing it built into the glass itself. For anyone building out an A-Mount kit or looking for a reliable second lens, the 18-70mm range handles most general shooting situations without requiring a bag change.

Who It's For

APS-C A-Mount shooters who need a single lens for day-to-day work will find the 18-70mm range covers most situations without swapping glass. Travel photographers benefit from the compact form factor and the 18mm wide end for tight spaces. New A-Mount system builders get a low-friction entry into the ecosystem. Documentary and street photographers who work in changing conditions appreciate having a zoom that spans casual reportage distances in one barrel.

Key Features

  • 18-70mm focal range covers wide interiors to casual portraits
  • Variable f/3.5-5.6 aperture optimized for APS-C sensor size
  • DT optics designed specifically for Sony/Minolta A-Mount APS-C bodies
  • Lightweight design benefits from in-body stabilization on compatible bodies
  • Proven kit zoom focal range for generalist everyday shooting

FAQ

What makes the DT designation important for this lens?
DT means it's optically designed for Sony/Minolta APS-C sensors, so the image circle is scaled to that smaller format. This keeps the lens compact and affordable while covering the full APS-C frame.
Can I use this lens on full-frame A-Mount bodies?
No. The DT optics are built specifically for APS-C. On full-frame A-Mount bodies like the Alpha 900 or 850, you'll get vignetting and won't fill the frame.
What's the actual zoom range in terms of coverage?
18mm handles wide interior and landscape shots; 70mm works for casual portraits and street photography. It covers the focal range most photographers use daily without lens changes.
Does the variable aperture affect usability?
The f/3.5-5.6 range is standard for kit zooms. Pair it with a body that performs well at higher ISO and you have adequate light gathering for indoor and overcast shooting. A-Mount bodies with in-body stabilization compensate for the narrower aperture at the long end.
Is this lens still relevant for A-Mount users?
If you're working in A-Mount, this is a proven focal range. It handles generalist shooting without forcing you to swap lenses constantly. Whether you're building a new kit or adding a second lens, 18-70mm covers the majority of situations.
SpecificationValue
Max Aperturef/3.5-5.6
MountSony/Minolta Alpha (A-Mount)

This description was generated using AI based on KEH's internal product standards, product expertise, and knowing what customers care about most. While we strive for accuracy, details may vary by individual item.

Brand Name Sony
Filter Size 55mm
Focus Type Autofocus (camera motor)
Lens Mount Sony A & Minolta A
Lens Type Wide-Angle, Standard / Normal
Max Focal Length 70mm
Min Focal Length 18mm