Canon EF-S lens mount 88-400mm (35mm equivalent) ultra-low dispersion element optical image Stabilizer STM AF stepping motor optimized lens coating full-time manual focus control non-rotating front element & rear focus seven blade Circular diaphragm minimum focus distance: 2.8'
Focal length and maximum aperture: 55-250mm 1: 4-5.6
Lens construction: 15 elements in 12 groups
Diagonal angle of view: 27 Degree 50 ft. – 6 Degree 15 ft.
Rear focus system, Closest focusing distance: 0.85M/2.8 ft.