Digital Camera Reviews » Lens Materials http://www.digitalcamerareviewsblog.com Digital Camera Reviews, Ratings and Recommendations - Find the Best Digital Camera For Your Needs. Thu, 09 Feb 2012 03:05:09 +0000 en hourly 1 http://wordpress.org/?v=3.0.4 24-70 mm f/2.8 EX DF Lens for Nikon AF http://www.digitalcamerareviewsblog.com/663/24-70-mm-f28-ex-df-lens-for-nikon-af/ http://www.digitalcamerareviewsblog.com/663/24-70-mm-f28-ex-df-lens-for-nikon-af/#comments Sat, 06 Dec 2008 18:19:12 +0000 Digital Camera Reviews http://www.digitalcamerareviewsblog.com/663/24-70-mm-f28-ex-df-lens-for-nikon-af/ 24-70 mm f/2.8 EX DF Lens for Nikon AF


The Sigma 24-70mm f2.8 EX Aspherical DG DF is one of several innovative products introduced by Sigma in 2001. This lens covers focal lengths from 24mm ultra wide angle to 70mm medium telephoto and provides a large f2.8 aperture at all focal lengths. It’s design employs three (3) aspherical lens elements to minimize spherical aberration, astigmatism and sagittal comma flare. The use of two (2) SLD (The Special Low Dispersion) glass elements results in excellent correction of chromatic aberration and provides a high level of optical performance and high contrast and resolution. The lens also incorporates a Dual Focus mechanism. The 24-70mm f2.8 EX Aspherical DG DF is an easy to hold the lens, since the focusing ring does not rotate during auto focusing, and yet provides a wide focus ring for easy to use manual focus. Since the front of the lens does not rotate, it allows the use of a flower shaped Perfect Hood and facilities the use of polarizing filters. The lens materials used in this new lens are lead and arsenic free ecological glass.
Price: $499.99 Buy/More Info
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]]> http://www.digitalcamerareviewsblog.com/663/24-70-mm-f28-ex-df-lens-for-nikon-af/feed/ 0 100-300 mm f/4 EX IF HSM Lens for Nikon AF http://www.digitalcamerareviewsblog.com/467/100-300-mm-f4-ex-if-hsm-lens-for-nikon-af/ http://www.digitalcamerareviewsblog.com/467/100-300-mm-f4-ex-if-hsm-lens-for-nikon-af/#comments Sat, 15 Nov 2008 06:55:25 +0000 Digital Camera Reviews http://www.digitalcamerareviewsblog.com/467/100-300-mm-f4-ex-if-hsm-lens-for-nikon-af/ 100-300 mm f/4 EX IF HSM Lens for Nikon AF


The Sigma 100-300mm f/4 EX APO IF HSM is one of Sigma’s highly repsected EX-Series lenses. This telephoto zoom lens provides a large constant F4 maximum aperture at all focal lengths. The use of Apochromatic design and 4 SLD (The Special Low Dispersion) glass elements (two SLD glass elements are utilized in the front lens group and two in the rear group) for full correction of chromatic aberration and providing a high level of optical performance. The AF drive for both Canon and Nikon cameras is equipped with silent, responsive and high speed HSM (Hyper Sonic Motor) as well as fulltime manual focus. This lens incorporates an internal focusing system, which eliminates front lens rotation, allowing the use of a Perfect Hood and easy to use circular polarizing filter. Since focusing and zooming do not change its overall length, this lens is easy to hold and use. It is also possible to use this lens with Sigma 1.4x EX and 2x EX Apo Tele Converters to make ultra tele-zoom lens. The lens materials used in this new lens are lead and arsenic free ecological glass. A removable tripod mount is provided with the lens.
Price: $1199.99 Buy/More Info
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]]> http://www.digitalcamerareviewsblog.com/467/100-300-mm-f4-ex-if-hsm-lens-for-nikon-af/feed/ 0 100-300 mm f/4 EX IF HSM Lens for Nikon AF http://www.digitalcamerareviewsblog.com/664/100-300-mm-f4-ex-if-hsm-lens-for-nikon-af-2/ http://www.digitalcamerareviewsblog.com/664/100-300-mm-f4-ex-if-hsm-lens-for-nikon-af-2/#comments Mon, 10 Nov 2008 16:48:41 +0000 Digital Camera Reviews http://www.digitalcamerareviewsblog.com/664/100-300-mm-f4-ex-if-hsm-lens-for-nikon-af-2/ 100-300 mm f/4 EX IF HSM Lens for Nikon AF


The Sigma 100-300mm f/4 EX APO IF HSM is one of Sigma’s highly repsected EX-Series lenses. This telephoto zoom lens provides a large constant F4 maximum aperture at all focal lengths. The use of Apochromatic design and 4 SLD (The Special Low Dispersion) glass elements (two SLD glass elements are utilized in the front lens group and two in the rear group) for full correction of chromatic aberration and providing a high level of optical performance. The AF drive for both Canon and Nikon cameras is equipped with silent, responsive and high speed HSM (Hyper Sonic Motor) as well as fulltime manual focus. This lens incorporates an internal focusing system, which eliminates front lens rotation, allowing the use of a Perfect Hood and easy to use circular polarizing filter. Since focusing and zooming do not change its overall length, this lens is easy to hold and use. It is also possible to use this lens with Sigma 1.4x EX and 2x EX Apo Tele Converters to make ultra tele-zoom lens. The lens materials used in this new lens are lead and arsenic free ecological glass. A removable tripod mount is provided with the lens.
Price: $1199.99 Buy/More Info
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]]> http://www.digitalcamerareviewsblog.com/664/100-300-mm-f4-ex-if-hsm-lens-for-nikon-af-2/feed/ 0 24-70 mm f/2.8 EX DF Lens for Canon AF http://www.digitalcamerareviewsblog.com/466/24-70-mm-f28-ex-df-lens-for-canon-af/ http://www.digitalcamerareviewsblog.com/466/24-70-mm-f28-ex-df-lens-for-canon-af/#comments Sat, 08 Nov 2008 19:01:39 +0000 Digital Camera Reviews http://www.digitalcamerareviewsblog.com/466/24-70-mm-f28-ex-df-lens-for-canon-af/ 24-70 mm f/2.8 EX DF Lens for Canon AF


The Sigma 24-70mm f2.8 EX Aspherical DG DF is one of several innovative products introduced by Sigma in 2001. This lens covers focal lengths from 24mm ultra wide angle to 70mm medium telephoto and provides a large f2.8 aperture at all focal lengths. It’s design employs three (3) aspherical lens elements to minimize spherical aberration, astigmatism and sagittal comma flare. The use of two (2) SLD (The Special Low Dispersion) glass elements results in excellent correction of chromatic aberration and provides a high level of optical performance and high contrast and resolution. The lens also incorporates a Dual Focus mechanism. The 24-70mm f2.8 EX Aspherical DG DF is an easy to hold the lens, since the focusing ring does not rotate during auto focusing, and yet provides a wide focus ring for easy to use manual focus. Since the front of the lens does not rotate, it allows the use of a flower shaped Perfect Hood and facilities the use of polarizing filters. The lens materials used in this new lens are lead and arsenic free ecological glass.
Price: $499.99 Buy/More Info
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