User manual
Tamron Zoom Super Wide Angle SP

User Manual for Tamron Zoom Super Wide Angle SP AF 17-50mm f 2.8 XR Di II LD Aspherical [IF] Autofocus Lens for Sony Alpha & Minolta Digital Cameras

• Product category: Uncategorized Tamron
• Brand: Tamron
• Description and content of package
• Technical information and basic settings
• Frequently asked questions – FAQ
• Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
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Product description

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.

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Technical parameters

Focal Length	17 to 50mm
Maximum Aperture	f/2.8
Minimum Aperture	f/32
Lens Mount	Sony A
Format Compatibility	APS-C
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