Tamron - SP AF17-50mm f/2.8 XR LD Aspherical Lens for Sony
The SP AF17-50mm F/2.8 is a lightweight, compact, fast standard zoom lens designed exclusively for digital SLR cameras, expanding the product concept of the popular SP AF28-75mm F/2.8 zoom lens. In addition, portrait shots are made beautiful with the natural out-of-focus effect characteristic provided by the fast F/2.8 aperture. Additionally, a broader photographic expression through the use of faster shutter speeds as a result of the maximum aperture offers enhanced photographic pleasure. The lens boasts one of the best close-up shooting performances in the class of fast standard zoom lenses designed exclusively for digital cameras and featuring an F/2.8 maximum aperture throughout the entire zoom range, to ensure stress-free photographic shots at all focal lengths and distances.
Tamron - SP AF17-50mm f/2.8 XR LD Aspherical Lens for Sony
The Tamron SP AF17-50mm f/2.8 XR Di II LD Aspherical Lens is a lightweight and compact standard zoom lens optimized for digital SLR cameras. With a focal length equivalent to approximately 26-78mm in 35mm format, it offers versatility and speed for various photographic situations.
Optimized for Digital SLR
XR (Extra Refractive Index) glass is employed to finely tune the distribution of optical power, effectively minimizing aberrations and achieving exceptional compactness. This design incorporates two hybrid aspherical elements strategically positioned to enhance imaging quality while streamlining the overall optical system for reduced size and weight.
LD Glass
The lens incorporates an LD (Low Dispersion) glass element to effectively counteract on-axis and lateral chromatic aberrations. This feature is crucial for maintaining high optical quality throughout the entire zoom range, ensuring exceptional performance in digital photography.
Enhanced Peripheral Illumination
Peripheral light fall-off is significantly reduced compared to conventional lenses designed for film cameras, resulting in uniformly bright images from the center to the edges.
Internal Surface Coating to Reduce Ghosting and Flare
Through the use of "Internal Surface Coatings" (multiple-layer coatings on cemented surfaces of multiple elements) and advanced multiple-layer coating technology on standard elements, this lens minimizes ghosting and flare caused by reflections from both the front element and the imagers themselves.
Zoom Lock Mechanism
The Zoom Lock prevents unwanted barrel extension when carrying the lens/camera combination.
Warranty
Limited warranty.
| Brand | Tamron |
|---|---|
| Free Shipping | Free Shipping Available |
| Focal Length | 17 to 50mm (35mm Equivalent: 25.5 to 75mm) |
| Lens Maximum Aperture | f/2.8 |
| Lens Mount | Sony A Mount |
| Angle of View | 78° to 31° |
| Lens Format Coverage | APS-C |
| Minimum Focus Distance | 10.6" (27 cm) [entire zoom range] |
| Highest Useful Magnification | 1:4.5 |
| Lens Elements | 16 Elements in 13 Groups |
| Lens Focus Type | Autofocus |
| Lens Weight | 15.17 oz / 430 g |