Variable Aperture: f/4 at the widest 40mm setting, narrowing down to f/5.6 at the full 150mm telephoto zoom extension.
MSC (Movie & Still Compatible) Motor: Employs a linear screw-drive mechanism for nearly silent, fluid, and incredibly fast autofocusing. It handles continuous focus tracking exceptionally well for both action snapshots and video work.
Optical Layout: 13 elements structured in 10 groups, including 1 ED (Extra-low Dispersion) element and 1 HR (High Refractive index) element to actively suppress chromatic aberrations and maximize contrast.
Minimum Focus Distance: 0.9 meters (2.95 feet) across the entire zoom spectrum.
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