وب سایت شخصی هادی انصاری عکاسی حیات وحش-Wildlife Photography
| Focal Length & Maximum Aperture | ۴۰۰mm 1:4 |
| Lens Construction | ۱۷ elements in 13 groups |
| Diagonal Angle of View | ۶° ۱۰′ |
| Focus Adjustment | Inner focusing system with USM |
| Closest Focusing Distance | ۳٫۵m / 11.5 ft. |
| Filter Size | ۵۲mm Drop-In |
| Max. Diameter x Length, Weight | ۵٫۰″ x 9.2″, 4.3 lbs. / 128.0 x 232.7mm, 1940g |
