Canon EF 90-300mm f,4.5-5.6 USM Canon Lens

Customer Reviews 3.0 out of 5 stars  See all reviews (1 customer review

Product Details Item Weight: 1.2 pounds Shipping Weight: 3.5 pounds ASIN: B0009X6RX2 Item model number: 7995A003BA Average Customer Review: 3.0 out of 5 stars  See all reviews (1 customer review) Date first available at Amazon.com: August 28, 2005 Technical Details

Product Description The optics of the EF 90-300mm f/4.5-5.6 USM are based on those of the EF 75-300mm f/4-5.6 III USM and the optical performance is similar. However, the AFdrive pattern has been optimized for the EOS 300V, giving a faster AF speed. Thecommunication speed between the lens and the camera is faster due to a new high-speed CPU. Also, a new AF algorithm has been developed. All the lens elements are manufactured from environmentally-friendly lead-free glass. A redesigned electromagnetic diaphragm (EMD) provides an aperture which is nearly circular at the widest settings. This gives an improved out-of-focus background effect. This lens features a micro USM (Ultrasonic Motor) motor which operates almost noiseless

Canon EF 90-300mm f,4.5-5.6 USM Canon Lens