The 55-200mm f/4.5-5.6 DC lens was exclusively designed to suit the characteristics of digital SLR cameras and offers a 3.6x zoom range. Ideal as a full-range telephoto zoom lens, this compact telephoto zoom lens provides an equivalent range of approx. 88-320mm when used with a Sony and Minolta digital SLR camera (*). DC lenses are exclusively designed for digital SLR cameras. The image circle (rear of lens) is made to match the smaller dimensions used for the image sensor on digital cameras. As a result these lenses are also more compact and lightweight, and are better matched to digital SLR cameras. (*) Note: Not suitable for 35mm film SLR cameras, or for 35mm size "full-frame" digital cameras. Key Features Lens Magnification Normal / Straight (35 - 65mm), Telephoto (65 to 600mm) Lens Type Zoom Lens Camera Format Digital SLR Focus Type Manual Focus Lens Max Aperture f/4-f/5.6 Min Aperture f/22 Focal Length 55mm - 200mm Mount Minolta Other Features Closest Focusing Distance 43.3" Diaphragm Blades 8 Blades Picture Angle 7.1 - 25.5 degrees Attachment / Filter Size 55 mm Groups / Elements 12 Elements in 9 Groups Designed for Digital Camera Yes General Dimensions (D x L) 2.8" x 3.4" Weight 10.93 oz