Gear for Image posted a big bunch of sample pics of the Sigma’s new UFO (Unbelievable F-stop Object), their brand new Sigma 18-35mm f/1.8 DC, and pics shot with the lens. You have to scroll down below the pics of the Sigma for the sample pics. The page will probably take some tine to load. Some more sample pics are here. We covered the announcement here.
To develop a large aperture zoom lens with a maximum aperture of F1.8, it was necessary to solve a variety of technical challenges. As the f-number decreases, so does the depth of focus, making it extremely difficult to minimize spherical aberration, axial chromatic aberration, astigmatism and field curvature. To minimize astigmatism across the zoom range, Sigma leveraged its extensive experience in reducing optical aberrations and designing advanced structural elements. Sigma gained this know-how when it developed such super wide angle zoom lenses as the SIGMA12-24mm F4.5-5.6 II DG HSM and SIGMA 8-16mm F4.5-5.6 DC HSM. Ongoing technological innovation at Sigma’s Aizu Factory has also contributed to further enhancements in lens production. Advanced production technologies have made possible a large-diameter molded glass aspheric lens, which teams up with SLD (Special Low Dispersion) glass elements to optimize power distribution and minimize axial chromatic and spherical aberration and field curvature. Thanks to its hard-earned knowledge of lens design and advanced lens manufacturing techniques, Sigma has succeeded in creating a lens that offers F1.8 throughout the zoom range, as well as exceptional image quality at wide open aperture.
Adorama has a Rebel T4i bundle with the EF-S 18-55mm f/3.5-5.6 IS II and EF-S 55-250mm f/4-5.6 IS lenses, a SanDisk 16GB ExtremePRO SDHC Memory Card, and a Canon SLR Gadget Bag for $899 (click here). Limited supply and free shipping. Normal price is $1199.
B&H has the Canon EOS 60D body only on sale for $661 (click here). Note that the price shows up when you add the item to the cart. And there is more: if you click the Buy Together and Save option to save $300 on a Canon EF 70-300mm f/4-5.6 IS lens
Keith over at Northlight Images has new information about the since long awaited EF 200-400mm f/4L IS Extender 1.4x lens. They were:
[…] told (thanks) that the formal announcement of avallability for the 200-400 will run alongside a camera announcement, most likely the 7D mk2, in time for shipping of a few units in the Autumn. There are quite a lot of test units in circulation and despite there being no official price, a lot of lenses have been pre-ordered. If (and at £10k that’s still a big if) the preorders are taken up, supplies will be very thin on the ground until well into 2014.
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