Alzo Smoothy Zoom Focus Assist Works Like Follow Focus Adapts To Many Different Camera Lens Calculators This heavy-duty protective cover features

This heavy-duty protective cover features a 3-layer design crafted from high-quality hard polycarbonate and soft silicone materials

It Starts Within Seconds Of Sensing Power Loss - Automatically - And Runs For As Long As Necessary Until Utility Power Returns

inspired by world-class bass amplifiers

Over The Past 20 Years

And Internal Overheating

Alzo Smoothy Zoom Focus Assist Works Like Follow Focus Adapts To Many Different Camera Lens Calculators This heavy-duty protective cover featuresThe Alzo Smoothy Zoom Focus Assist Is A Very Low Cost Device That Easily Attaches To Dslr Lens Rings And Allows For Smooth Zooms And Focus Pulls. It Is A Good Replacement For A Follow Focus At A Fraction Of The Cost. For Full Lens Zooms Or Deep Focus Pull Actions, This Device Is Superior. It Easily Covers The Full Lens Ring Range Without Pauses Or Extreme Wrist Twists Required With A Follow Focus. Fits Lens Rings From 50Mm To 80Mm Diameter.