Key Features
Full Frame | f/1.8 to f/16
Superfast Wide-to-Normal Zoom
HLA Autofocus
11.9〃 Minimum Focus Distance
Aperture Ring with Click & Lock Switches
SLD and Aspherical Elements
Nano Porous & Super Multilayer Coatings
Dust & Splash Resistant
1:4 maximum magnification ratio @45mm
体重: 2.1 lb. 约952g
体积: 3.5" x 6"
该不会这支重磅镜头讨论度
比新的Tamron 50-300还低吧