The GZ-HD5 utilizes a lens designed for high definition by Fujinon. Fujinon is the leader in professional camera lens for live HD images. This lens features 3 aspherical elements and provides nearly the same brightness (F1.8-1.9) throughout its zoom range.

In addition, the lens surface is coated with a new Electronic Beam Coating (EBC) that greatly reduces degradation caused by light reflecting off the lens surfaces, leading to greater light transmission and reduced flaring and ghosting.