Sigma 8-16mm f/4.5-5.6 DC HSM FLD AF Ultra Wide Zoom Lens is the first ultra wide zoom lens with a minimum focal length of 8mm, designed specifically for APS-C size image sensors. It has an equivalent angle of view of a 12-24mm lens when used on digital camera with an APS-C size image sensor. Sigma has recently introduced ultra-wide-angle of 8-16mm F4.5-5.6 DC HSM, to the equivalent of 135 medium format of the traditional 12-24mm focal length, wide-angle lens to give clients even more than the original 121.2 degrees wide angle. The Sigma has been on the development aspects of wide-angle lens is particularly aggressive, with a medium format, such as, the factory began in 2003 had already introduced similar specifications have not yet present original ultra-wide-angle zoom lens 12-24mm F4.5-F5. 6 EX DG ASPHERICAL HSM. With APC-S medium format, whether original or even the vice factories, there has been a corresponding development of ultra-wide-angle zoom lens. While the 8-16mm F4.5-5.6 DC HSM introduction, it just highlights the Sigma lens development power.

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Nikon 24mm f/1.4G ED AF-S RF SWM Prime Wide Angle Nikkor Lens delivers a prime wide-angle perspective and ultra-fast f/1.4 aperture for extreme light gathering capability and extraordinary performance. With the large aperture wide-angle lens and improving quality of optical, 24mm f/1.4G ED AF-S Nikkor lens is absolute the best weapon for shooting landscapes portraits or snap shot. Although the price of AF-S Nikkor 24mm f/1.4G ED is really not cheap, it’s worth due to the stunning f/1.4 aspherical lens elements that virtually eliminate coma and other types of aberration, even when shooting at the widest available aperture. The two Extra-low Dispersion (ED) Elements offers superior sharpness and color correction by effectively minimizing chromatic aberration, even at the widest aperture settings.

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Olympus announced to release the world’s lightest, smallest M4/3 wide-angle telephoto lens – M. ZUIKO DIGITAL ED 14-150mm F4.0-5.6 this month. Comparing to the ZUIKO DIGITAL ED 18-180mm lens, M. ZUIKO DIGITAL ED 14-150mm F4.0-5.6 lens is smaller and lightweight for 65% and 70% separately. The new lens only weight 280g. This is because the combination of multiple high-tech lenses, including OLYMPUS first double-sided aspherical lens super (DUAL DSA) design. The lens is thin and the light refraction can be effective correction for chromatic aberration and distortion occurs, provide clear and sharp image, with low dispersion and high reflectivity mirror (E-HR), to reduce optical errors and distortion.

10-20mm f/3.5 EX DC HSM ELD SLD Aspherical Super Wide Angle Lens is Sigma’s latest lens for Canon digital SLR cameras. Sigma’s new 10-20mm 1:3.5 EX DC HSM replaces an earlier, slower ultra-wide zoom lens that was released late in 2004. Designed specifically for DSLR cameras with ‘APS-C format’ sensors, it is offered in mounts to suit Sigma, Nikon, Canon, Sony and Pentax models. As well as having a wider maximum aperture, this lens is distinguished from the earlier model by providing a maximum aperture of f/3.5 throughout the entire zoom range.

The price of Sigma 10-20mm F3.5 EX DC HSM is not too expensive, and can provide ultrasonic HSM focus and constant f/3.5 aperture, is rare in APS-C medium format high-performance ultra wide-angle lens. Equivalent lens Tokina 11-16mm f/2.8 AT-X116 Pro DX imaging appears to sharp point, aperture is also half-level, but the zoom range is narrow, and there is no ultrasonic focus in the price of similar circumstances.

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