After months after months of research and reading tons of reviews I finally decided to buy me a Canon EF 17-40mm F/4 USM lens. I got it on ebay for very good deal $684.75 plus $35 shipping. It arrived just two day before xmas, I am so excited this is my first L lens. My first impression with this lens is it look solid and very wide at the front end (77mm filter). USM so quite and fast. I had taken about 20 photos with this lens already I will up load some sample on this blog later day.
Specifications
Lens
Focal Length & Maximum Aperture : 17 - 40mm; 1:4
Lens Construction : 12 elements in 9 groups
Diagonal Angle of View : 104° - 57° 30'
Focus Adjustment : Inner focusing system with USM
Closest Focusing Distance : 0.28m / 0.9 ft.
Zoom System : Rotating type
Filter Size : 77mm
Max. Diameter x Length, Weight : 3.3" x 3.8", 1.1 lb. / 83.5 x 96.8mm, 500g
Here is my Canon EF17-40mm F/4 L
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