Tamron 18-250mm f/3.5-6.3 Di-II LD Aspherical IF Macro Autofocus Zoom Wide Angle-Telephoto AF Lens for Sony
NIVO#: 15276Mnf.#: TA/A18-SONY
Model: A18
Warranty: 1 year
Our price: 
R 6,259.00
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Overview & Features top
The Tamron AF 18-250mm f/3.5-6.3 Di-II LD Aspherical IF Macro Lens is a lightweight, compact and ultra high power zoom lens designed exclusively for digital SLR cameras with APS-C sized imager sensors. The focal length of this lens is equivalent to approx. 29-400mm in 35mm format. This lens offers an extreme zoom ratio of 13.9X, and is designed as the everyday "all-in-one" lens for digital SLR cameras, covering wideangle to long telephoto.

The lens uses an optical system specially designed for digital SLR cameras. This resulted in the sufficient compensation of aberrations, including astigmatism, compactness, thanks to downsizing of the first group, a high zoom power, and optimum optical quality.

Note! Not compatible with 35mm or digital cameras with image sensor larger than APS-C size

Advanced Optical Design

One LD (Low Dispersion) glass element and one AD (Anomalous Dispersion) lens in the first lens group minimize on-axis chromatic aberration. Two hybrid aspherical lens elements serves to meet the desired compactness despite its 13.9X zoom power.

Internal Surface Coating to Reduce Ghosting and Flare

This lens features Internal Surface Coatings (i.e., multiple-layer coatings on cemented surfaces of plural elements) and new multiple-layer coating technology on ordinary elements in order to minimize reflections that occur when light enters through the front element and to reduce image degrading effects caused by the imagers themselves.

Zoom Lock Mechanism

The Zoom Lock prevents unwanted barrel movement when carrying the lens/camera combination.

Di-II Series Design

Design has been improved by adding a gold-colored band between the focus and zoom rings to enhance the appearance and make it stand out as a Di-II lens. The rubber patterns of the zoom and focus control rings have been improved at the same time to compliment the digital camera design style and to provide better handling.
What's in the Box top
  • 62mm Snap-On Lens Cap
  • Rear Lens Cap for Canon EOS
  • Lens Hood
Specification top
General
Model
A18
Lens Type
Macro
Wide Angle
Focal Length
18-250 mm
Zoom / Fixed
Zoom
Lens Mount
Pentax
Min. Focal Length (mm)
18 mm
Max. Focal Length (mm)
250 mm
 
Performance
Focusing
Autofocus
Closest Focusing Distance
45 cm
Silent motor
<not specified>
Angle of View
75 to 6° (APS-C size equivalent)
Maximum Aperture
3.5 - 6.3
Minimum Aperture
f/22
Max Magnification Ratio
1:3.5
Image Stabilizer
<not specified>
Aspherical Lens
Yes
 
Construction
Lens Construction (elements/groups)
13/16
Diaphragm Blades
7
Internal Focus
Yes
 
Physical Characteristics
Filter Diameter
62 mm
Diameter
74
Length
84
Weight
430
 
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