Sea&Sea Left Grip Extension @inonldmount it is not necessary to

it is not necessary to manually adjust output

The Lens Holder [hole] is usable as like "LD Lens Holder for Float Arm" as well

Also available is a double hinged holder (19356) giving you the opportunity to use two lens of different magnification hinged on the same holder’s frame

Over the course of development a combined total of more than 1

With battery charge status indicator by colors

Sea&Sea Left Grip Extension @inonldmount it is not necessary toWith this product, the left housing grip can be positioned forward to provide easy access to the focus knob on the Extension Ring 46 with Focus Knob #30117 with Focus Gear. Specifications Dimensions (WxHxD): 10 x 25 x 54mm 0. 4 x 1. 0 x 2. 1 inches Weight(including accessories): Approx. 55g 1. 9oz Construction: Corrosion resistant aluminium alloy (alumite coating)