Yes, it features a dust and moisture-resistant design, including a rubber gasket at the mount, making it suitable for professional outdoor use.
No, this lens does not have built-in Optical SteadyShot (OSS). It relies on the In-Body Image Stabilization (IBIS) found in most Sony Alpha camera bodies.
The lens requires 82mm filters. This is a standard size for professional zooms, allowing for the use of high-quality ND and polarizing filters.
Yes, it is fully compatible with the Sony A7III and all other Sony E-mount mirrorless cameras, providing full autofocus and aperture control.