• The Quantaray 55-200 mm lens is a general purpose, interchangeable lens that fits Canon or Nikon digital single lens reflex cameras. The Quantaray 55-200 mm is a telephoto zoom lens with a focal range that includes normal to telephoto options. As of November 2010, the cost of the Quantaray 55-200 mm lens ranges from $75 to $150 for a used lens and from $150 to $250 for a new lens.
  
  

Focal Length

• The numbers 55 to 200 refer to the focal length of the lens in millimeters; 50 mm is a "normal" focal length -- the type of shot you would take with a zoom lens on a point-and-shoot camera. A focal length below 35 mm is a wide-angle shot, and a focal length above 85 mm is a telephoto shot.
  
  The majority of the focal length of the Quantaray 55-200 mm lens lies in the telephoto range. The lens will take some normal shots and a variety of telephoto shots, so the lens is better for zooming in on subjects than capturing wide-angle shots.
  
  

Focus

• The Quantaray 55-200 mm lens is an auto- or manual-focus lens, but the autofocus feature is compatible only with camera bodies that include the autofocus function. The lens has a minimum focus distance of 43.3 inches, so you will not be able to take pictures of subjects that are closer than this distance at the 55 mm focal length.
  
  

F-stop

• The Quantaray 55-200 mm lens has an f-stop range of f/4-22, giving it a variety of depth-of-field options within its focal length.
  
  

Weight and Dimensions

• The Quantaray 55-200 mm lens is a lightweight, compact lens. It weighs 10.9 oz. and is 3.3 inches long and 2.7 inches in diameter.
  
  

Attachments

• The Quantaray 55-200 mm lens does not include a macro lens. It uses a filter or attachment size that is equivalent to the minimum focal length of 55 mm.