Canon EF 300mm f/4L IS USM
For the focal length this is a decently compact telephoto lens and includes IS (image stabilization) which can essentially get you down to about an f/2.8 stop. That being said it's not an ideal lens for handholding if you're indoors or in low light. It's only 9 inches long and at this focal length relatively light. The quality is excellent and the results are very sharp.Focal Length & Maximum Aperture: 300mm 1:4.0
Lens Construction: 15 elements in 11 groups
Diagonal Angle of View: 8 degrees 15'
Focus Adjustment: Rear focusing system with USM
Closest Focusing Distance: 1.5m / 4.9 ft.
Filter Size: 77mm
Max. Diam. x Length, Weight: 3.5" x 8.7", 2.6 lbs. / 90 x 221mm, 1190g
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