Tamron 17-50mm f/2.8 XR Di-II LD Aspherical [IF] Autofocus Lens for Pentax Digital Cameras

BH #TA175028P • MFR #AF016P-700
Tamron
Tamron 17-50mm f/2.8 XR Di-II LD Aspherical [IF] Autofocus Lens for Pentax Digital Cameras
Key Features
  • Zoom Super Wide Angle
The Tamron SP AF 17-50mm f/2.8 XR Di-II LD Aspherical [IF] is a lightweight, compact, and fast standard zoom lens designed exclusively for digital SLR cameras. The focal length of this lens is equivalent to approx. 26-75mm in 35mm format.

This lens offers an f/2.8 maximum aperture throughout the entire zoom range, to ensure stress-free photographic shots at all focal lengths and distances. Additionally, a broader photographic expression through the use of faster shutter speeds as a result of the maximum aperture offers enhanced photographic pleasure.

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Tamron SP 17-50mm f/2.8 XR Di II LD Aspherica... Overview

  • 1Description
  • 2Optimized for Digital SLR
  • 3LD Glass
  • 4Enhanced Peripheral Illumination
  • 5Internal Surface Coating to Reduce Ghosting and Flare
  • 6Zoom Lock Mechanism

The Tamron SP AF 17-50mm f/2.8 XR Di-II LD Aspherical [IF] is a lightweight, compact, and fast standard zoom lens designed exclusively for digital SLR cameras. The focal length of this lens is equivalent to approx. 26-75mm in 35mm format.

This lens offers an f/2.8 maximum aperture throughout the entire zoom range, to ensure stress-free photographic shots at all focal lengths and distances. Additionally, a broader photographic expression through the use of faster shutter speeds as a result of the maximum aperture offers enhanced photographic pleasure.

Note:
Di-II lenses cannot be used with digital SLR cameras using image sensors that are larger than that of an APS-C size imager (e.g. 1D series), or with 35mm film SLR cameras.

Optimized for Digital SLR

The use of XR (Extra Refractive Index) glass optimizes the overall distribution of optical power, and also reduces various aberrations to the absolute minimum while achieving remarkable compactness. In addition, suitable positioning of two hybrid aspherical elements serves to maintain imaging performance and to shorten and compress the entire optical system.

LD Glass

An LD (Low Dispersion) glass element is used to accomplish effective compensation of on-axis and lateral chromatic aberrations, a critical factor for enhancing optical quality in digital photography, in order to achieve outstanding optical performance over the entire zoom range.

Enhanced Peripheral Illumination

Peripheral light fall-off is minimized when compared with that of conventional lenses for film cameras, so images are uniformly bright from the center to the periphery.

Internal Surface Coating to Reduce Ghosting and Flare

By employing "Internal Surface Coatings" (i.e., multiple-layer coatings on cemented surfaces of plural elements) and multiple-layer coating technology on ordinary elements, ghosting and flare due to the reflections that occur when light enters through the front element and reflections caused by the imagers themselves are reduced to the absolute minimum.

Zoom Lock Mechanism

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

Tamron SP 17-50mm f/2.8 XR Di II LD Aspherica... Specs

Focal Length17 to 50mm (35mm Equivalent Focal Length: 25.5 to 75mm)
Maximum Aperturef/2.8
Minimum Aperturef/32
Lens MountPentax K
Format CompatibilityAPS-C
Angle of View78° to 31°
Minimum Focus Distance10.63" / 27 cm
Maximum Magnification0.22x
Optical Design16 Elements in 13 Groups
Diaphragm Blades7
Focus TypeAutofocus
Image StabilizationNone
Filter Size67 mm (Front)
Dimensions (ø x L)2.9 x 3.2" / 7.37 x 8.13 cm
Weight15.17 oz / 430 g
Packaging Info
Package Weight1.405 lb
Box Dimensions (LxWxH)6 x 4.4 x 4.3"
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does this lens AF with Z50?

does this lens AF with Z50?
Asked by: Maw
I use the lens on a cropped sensor camera. I would call Tamron direct for an answer
Answered by: Mark
Date published: 2020-11-04

Does this work with the Pentax K7,14.6mp canera

Does this work with the Pentax K7,14.6mp canera
Asked by: Brian
Yes, it is compatible with the Pentax K7.
Answered by: Rob
Date published: 2020-07-15

I have a Nikon 1 J5 with the Ft-1 adapter. Can I ...

I have a Nikon 1 J5 with the Ft-1 adapter. Can I use this lens and the ES-1 to scan negatives?
Asked by: John
The ES1 adapter was designed to be used with the PK13 and the 55mm Micro lens and duplicate the negative to the exact size. Your J1 has a very small sensor. You would crop quite a bit your original.
Answered by: stuart e
Date published: 2020-01-13

Where is this [Tamron SP 17-50mm f2.8 XR Di ll LD ...

Where is this [Tamron SP 17-50mm f2.8 XR Di ll LD Asp lens] made (country)?
Asked by: Bienvenido R Jr
This lens is made in China.
Answered by: Reuben
Date published: 2019-09-10

Will this lens properly auto focus attached to a ...

Will this lens properly auto focus attached to a Sony A57 camera?
Asked by: RICHARD
Yes, it is fully compatible with the Sony A57.
Answered by: Rob
Date published: 2019-08-08

Can this lens be used with my Canon EOS M50?

Can this lens be used with my Canon EOS M50?
Asked by: Carlos
Not directly, no. The Tamron Zoom Super Wide Angle SP AF 17-50mm f/2.8 XR Di II LD Aspherical [IF] Autofocus Lens for Canon EOS Digital Cameras, B&H # TA175028CAF, is designed for use on the Canon EF-S lens mount, while the Canon EOS M50 Mirrorless Digital Camera uses the smaller Canon EF-M lens mount. As such, you would need a lens adapter, such as either the Canon EF-M Lens Adapter Kit for Canon EF / EF-S Lenses, B&H # CALA, or the Vello Auto Lens Adapter for Canon EF/EF-S Lens to Canon EOS M Camera System, B&H # VELAECMCEF, to connect the Tamron lens onto the Canon EOS M50 Mirrorless Digital Camera.
Answered by: Manzell
Date published: 2019-03-21

does it have vibration reduction?

does it have vibration reduction?
Asked by: anthony
This lens does not offer any vibration reduction.
Answered by: Mark
Date published: 2018-12-27

question

Would this be a good lens to shot the Milky Way?
Asked by: Raul A.
This lens will work fine with the right settings. A sturdy tripod is a must. f/2.8, 20 seconds, ISO 3200
Answered by: Anonymous
Date published: 2018-11-07
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