Want an extremely wide-angle lens to capture those beautiful landscapes at your holiday sights and hotspots? Tameron lenses will help you capture more of every adventure and fun. Expand the entertainment creativity and capabilities of your photography passion with advanced and stylish lenses. Have more satisfying and clear images of your festivities parties and intimate moments.Specification:Type: ZoomMaximum Focal Length: 50 mmMinimum Focal Length: 17 mmAperture with Max Focal Length: 2.8Lens Construction (Elements/Groups): 16 elements in 13 groupsAngle of View: 78� 45'' - 31� 11'' (APS-C size equivalent)Closest focusing distance: 0.27 mMaximum Magnification (x): 1 : 4.5 (at 50 mm)Minimum Aperture: F/32Filter Attachment Size: 67 mmDimensions: 81.7 mm x 74. mm (Length x diameter)Weight: 434 gIn the Box: Lens Lens Hood