Ohlamon’s Technology News Blog

Some interesting Photokina 2006 Lens announcements from Tamron and Sigma

Tamron SP AF17-50mm F/2.8 XR Di II was announced several month ago. So Sigma finally strikes back with very similar answer. Sigma has announced the Sigma 18-50 mm F2.8 EX DC Macro lens. Like all other DC lenses this one is designed specifically for digital SLR’s with APS sized sensors.

Usually Tamron and Sigma present very similar products, but not in this time. They both have in stock 18-200 mm 3.5-6.3 lenses that offers a big 11x zoom for digital SLR’s only. They moved in different direction for the second generation of these lenses. Tamron has presented AF 18-250 mm Di-II lens, adding further telephoto range. It provides a zoom range of 13.8x, producing an equivalent field of view of approximately 27 to 375 mm on a digital SLR with a 1.5x FOV crop. Alternatively Sigma 18-200 mm F3.5-6.3 DC OS offers the same old 11x zoom range in combination with Sigma’s own Optical Stabilizer.