This compact ultra-telephoto zoom lens is ideal for sports, nature, wildlife, and landscape photography. The new multi layer lens coating and lens design reduce flare and ghost and also creates an optimum color balance and better picture quality through the entire zoom range. This lens uses one aspherical lens and three SLD (Special Low Dispersion) glasses for excellent correction of various chromatic aberrations. It provides excellent image quality for digital and film SLR cameras. The new multi-layer lens coating and lens design reduces flare and ghosting, and creates an optimum color balance through the entire zoom range. This lens uses one aspherical lens and three SLD (the special low dispersion) glasses for excellent correction of chromatic aberration, making high-quality images a reality throughout the entire zoom range. The rear focusing system ensures high performance stability and ease of use. Since the front of the lens does not rotate, a circular polarizing filter can be easily attached and use. A removable tripod collar is included as a standard component and also a zoom hood is supplied with this lens to prevent flare and ghosting as well as extraneous light harmful for image quality. Maximum Magnification - 1 - 5.3 Filter Size - Diameter 77mm Dimensions - Diameter 88.5mm x Length 183.5mm, 3.4 x 7.2 inch Weight - 43.9 ouncesPrice: $599.00
Customer Review: Not Sharp, Not Matter What
Bought this from Amazon at the same time we bought the Sigma 10-20 super wide and the Canon 100MM Macro. Those two lenses are great, this one is a complete dog. Unfortunately, we have been so busy with the other two only recently have we had the need to use this one. The clarity is simply poor at all focal lengths and F stops. Does not matter if hand held, or on a tripod with a wireless flash, it's a dog. Just tried to return it, today is the 31st of May, and Amazon says my return window expired yesterday. Now I'm going to have to deal with Sigma I guess. I'll never buy another Sigma lens.
Customer Review: Good lens for semi-pro medium resolution
I agonized over several super telephotos before committing to this lens. I am a seasoned photographer and, after two decades of serious amateur photography, I am beginning to sell my work. My previous review of this lens jumped the gun a bit. After having the opportunity to give it a work out, I have to modify the review. If you are using an unforgiving sensor, such as the 5D, this may not be the lens for you. For cropped frame cameras (i.e., 20D) this serves as a useful extension to a medium range telephoto. If you demand 4MP+ tack sharp images, you will find this lens is superfluous in the bag. At best, it's a medium resolution lens that will work well for web imaging and smaller prints. At medium to small resolution, this lens is a great bargain and is highly functional. I found the autofocus to be sufficiently fast and accurate. CAVEAT: To get decent imaging with this lens, you need to know how to shoot super-telephoto. This has to be locked down/stabilized. This lens is no different. Extended beyond 300mm, mirror lock up is likely necessary. The physical feel of this lens reminds me of the old Nikkor 300mm. It's heavy. The lens appears to be well built and rugged. If I was able to, I would tweak my product rating to 3.5 stars. It's a great buy, but definitely not a pro lens.









