Sigma 24-105mm F4 DG OS Art Series Lens: NIKON CA2671
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The Sigma 24-105mm f4 DG OS HSM Lens is a high performance, wide-angle to mid-range zoom lens specially designed for digital SLR cameras with a full-frame sensor, but is compatible with APS-C sensors too. Its constant aperture of f/4.0, OS (Optical Image Stabiliser) and HSM (Hyper Sonic Motor) enhances the lens’ usability in low-lit environments.
The Super Multi-Layer Coating reduces flare and ghosting to ensure sharp, high contrast images even in backlit conditions, while the Hyper Sonic Motor ensures silent and smooth focusing with full-time manual override for precise adjustments. The Sigma 24-105mm lens features a minimum focusing distance of 45cm and is also compatible with Sigma’s USB dock allowing photographers to update its firmware and change focus parameters using Sigma’s Optimisation Pro software.
Covering the standard shooting range of 35mm full size image sensor The convenience of a zoom lens enables photographers to capture various subjects without the need to change lenses.
The SIGMA 24-105mm F4 DG OS HSM is the perfect lens in this respect as it covers the basic shooting range from wide to mid-telephoto. Moreover, its constant aperture of F4, OS (Optical Stabilizer) and HSM (Hyper Sonic Motor) enhances the lens’ usability. It is ideal for portraits, landscapes and general photography.
Superior image quality
For those standard lenses with a high zoom ratio, they tend to show astigmatic aberration, field curvature, distortions and color aberration. In order to compensate for these, various types of high-performance lenses, such as FLD, SLD and glass-molded aspheric lenses including double-sided aspheric lens, have been included into the optical system. In addition, it suppresses chromatic aberration very effectively at telephoto-end, and achieves superior image quality throughout the zoom range. This lens overcomes low peripheral brightness that is common for those lenses with similar specifications. Also, the wide filter size 82mm is contributing for superior optical performance.
The lens' wide zoom ring ensures convenient handling. Putting the zoom ring in front allows the lens barrel to be more compact. The inner focusing system eliminates front lens rotation, enhancing the lens' stability and allowing use of Circular Polarizing filters.
Designed to minimize flare and ghosting
Flare and ghosting were thoroughly measured and monitored from an early stage in the lenses development to establish an optical design which is resistant to strong incidental light such as backlight. The Super Multi-Layer Coating reduces flare and ghosting and provides sharp and high contrast images even in backlit conditions.
Minimum focusing distance of 45cm
With a minimum focusing distance of 45cm and a maximum magnification ratio of 1:4.6, this lens is excellent for close-up photography.
Hyper Sonic Motor
The HSM (Hyper Sonic Motor) ensures a silent, high-speed AF function. Optimizing AF algorithm, smoother AF is achieved. It also enables full-time manual focusing capability which allows sensible focus adjustment by simply rotating the focus ring.
Incorporating Rounded diaphragm
The 9 blade rounded diaphragm creates an attractive round bokeh at large-aperture settings.
The new product lines incorporate rubber for the attachment part of the provided lens hood. For better usability, the designs of the lens cap and AF/MF changeover switch have been improved. In order to ensure high accuracy of the product, all metallic parts and the new compound material, TSC (Thermally Stable Composite), which has a high affinity to metal parts, are housed internally. On the zoom ring, the last three digits of its release year are engraved so the lens can be identified according to the year of its launch.
Brass made bayonet mount
This lens incorporates a brass made bayonet mount which has both high accuracy and durability. A special treatment to reinforce its strength is applied to the surface giving it greater strength and making it highly resistant to long-term use.
Newly developed “USB DOCK” exclusively for new product lines
Attaching the lens to an optional USB DOCK plugged to your computer and using dedicated software “SIGMA Optimisation Pro”, you can update the lens firmware and adjust parameters such as focus.
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