Tamron 18-250mm f/3.5-6,3 Di ii LD Asph (IF) Macro Lens – Pentax
Tamron 18-250mm f/3.5-6.3 Di-II LD Aspherical IF Macro Lens is a lightweight, solid and especially high supremacy zoom lens planned entirely for digital SLR cameras with APS-C sized imager sensors. In terms of construct quality the Tamron is quite distinctive consumer grade zoom lens. Nearly all of the outer structure is made of plastic except for the metal mount. The broad, rubberized zoom ring has an extremely high friction particularly in the middle range. The small focus ring operates sensibly smooth. This Tamron lens uses a duo-cam zoom mechanism (two inner lens tubes) to widen towards to long end of the zoom range. At 270mm the lens is about two times as long as full retracted. The focal length of this Tamron lens is equal to approx. 27-375mm in 35mm format. This Tamron lens offers a great zoom ratio of 13.9X, and is intended as the everyday lens for digital SLR cameras, wrapping wide-angle to long telephoto.Tamron 18-250mm lens uses an optical scheme particularly designed for digital SLR cameras. This resulted in the enough recompense of aberrations, including compactness, a high zoom power, and best possible optical quality.
One LD (Low Dispersion) glass element and one AD (Anomalous Dispersion) lens in the first lens group reduce on-axis chromatic aberration. Two hybrid aspherical lens elements serve to assemble the preferred compactness despite its 13.9X zoom power. This Tamron lens features Internal Surface Coatings and new multiple-layer coating technology on normal elements in order to diminish reflections that take place when light enters through the front element and to reduce image humiliating effects caused by the imagers themselves. The Zoom Lock prevents superfluous barrel movement when transporting the lens/camera combination. The rubber prototype of the zoom and focus control rings have been enhanced at the same time to praise the digital camera design approach and to make available better management.
(Tamron-Pentax) Tamron 18-250mm Macro Di ll LD F3.5-6.3 Asph IF Lens |
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Lens Construction - Tamron 18-250mm Di ll Lens |
16 elements / 13 groups |
Focal Length |
18-250 mm |
Maximum Aperture |
f3.5-6.3 |
Filter |
62 mm |
Angle-of-View - Tamron 18-250mm Di ll Lens |
75° 33 m- 6° 23 m [on APS-C sensor] |
Closest Focus distance |
0.45 m [ 17.7 in] |
Reproduction Ratio |
1:3.5 [-250 mm] |
Overall Length |
84.3 mm |
Diameter |
74.4mm |
Weight |
430 g |
Diaphragm Blades |
7 blades |
Min Aperture |
f22 |
Type - Tamron 18-250mm Di ll Lens |
Zoom |
Lens Fit |
Pentax |
Focus |
Auto |
Macro |
Yes |
| Zoom Lock Switch | Yes |
| Coating - Tamron 18-250mm Di ll Lens | Internal Surface Coating |
| Low Dispersion Lens [LD] | Yes |
| Hybrid Aspherical Lens | Yes |
| Anomalous Dispersion Lens [AD] | Yes |
| Digitally Integrated Lens [Di] | Yes |
| Lens Hood - Tamron 18-250mm Di ll Lens | Petal Shaped Hood [Included] |
Kit Content
Tamron 18-250mm
Di ll LD F3.5-6.3 Asph IF Lens (Pentax)
User Guide - Tamron 18-250mm Lens
Lens Caps
Lens Hood
For more information about, Tamron 18-250mm f3,5/6,3 Di ii LD Asph (IF) Macro Lens -Pentax website.
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Buy Tamron 18-250mm f3,5/6,3 Di ii LD Asph (IF) Macro Lens -Pentax + Related Products RRP: RRP: £534.87£386.29Inc VAT 20% |
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