Sigma 24-105mm F4 DG OS HSM Lens Nikon #

PRODUCT FEATIURES 

·For Full Frame and Crop Sensor Cameras

·3 Aspherical, 2 SLD, and 2 FLD Elements

·Optical Stabilizer

·Thermally Stable Composite

·Internal Focusing System

·Hyper Sonic AF Motor

·Compatible with Sigma USB DockOVERVIEWThe 24-105mm F/4 DG OS HSM Lens from Sigma is a wide-angle to medium telephoto zoom lens with a constant f/4 aperture. It is designed for both full frame and crop sensor Nikon DSLR cameras.The lens integrates three aspherical elements into its construction as well as two SLD and two FLD glass elements to help minimize aberration, field curvature, and distortions throughout the zoom range as well as provide greater image sharpness while avoiding reduced peripheral brightness. Super Multi-Layer Coating has also been applied to lens elements to reduce surface reflections, lens flare, and ghosting to produce images with higher contrast and colour fidelity.The barrel of the lens is constructed from a Thermally Stable Composite (TSC) material that offers minimal thermal shrinkage and exceptional hardness. An internal focusing and zooming mechanism helps to maintain a compact and consistent overall length and non-rotating front ring which enables the use of circular polarizing filters. For autofocus, a Hyper Sonic Motor (HSM) delivers high speed focus with minimal noise, making it well suited for continuous shooting and video recording. 

·An optimized algorithm offers smooth auto focusing with full-time manual focus override.

·A brass mount combines high precision with rugged construction, adding durability to the lens.

·The lens is compatible with Sigma's USB Dock and Sigma Optimization Pro software for adjusting focus position, and updating its firmware to better suit your needs.

·The rounded 9-blade diaphragm produces aesthetic bokeh at both large and small apertures.SPECIFICATIONSFocal Length 24 – 105 mm

Comparable APS-C Focal Length: 36 – 158 mm

Aperture Maximum: f/4 Minimum: f/22

Camera Mount Type Nikon F

Format Compatibility 35mm Film / Full-Frame Digital Sensor APS-C

Angle of View 84.1° – 23.3°

Minimum Focus Distance 17.7" (44.96 cm)

Maximum Reproduction Ratio 1:4.6

Groups/Elements 14/19

Diaphragm Blades 9

Image Stabilization Yes

Autofocus Yes

Tripod Collar No

Filter Thread Front: 82 mm

Dimensions (DxL) Approx. 3.5 x 4.3" (8.89 x 10.92 cm)

Weight 31.2 oz (885 g)