SSF2470-Z Zoom Gear for Sigma 24-70mm F2.8 DG accessories - trays Incorporating these factors into the

Incorporating these factors into the design yields amazing sharpness

8:1 magnification

when used with the 16410 N120 to N200 Port Adapter can support the use of Cinema Lenses and the associated N200 Port System

The Sony a7R IV is the company's fourth generation

a new front lever to quickly switch between aperture and ISO sensitivity

SSF2470-Z Zoom Gear for Sigma 24-70mm F2.8 DG accessories - trays Incorporating these factors into theZoom gears allow for the use of a lens' manual zoom function when used with supported housings and or port extensions. Consult the Port Chart for more details. This zoom gear is for the Sigma 24 70mm F2. 8 DG lens. PDF User Manual