Sea&Sea Extension Ring 46 with Focus Knob greenwaterfilter Using a large prism having

Using a large prism having less light attenuation enables to see clearer and brighter viewfinder image even corners and to provide less visual variation with different eye positions

Snoot Tube

speedy yet reliable installation on "28LD Mount Base"/"LD Lens Adapter Base" can be obtained

For example

Sea&Sea Extension Ring 46 with Focus Knob greenwaterfilter Using a large prism havingExtension Ring 46 with Focus Knob, provides manual focus for compatible zoom lenses. (Extension ring equipped with port lock). Compatible Housings: MDX series housings. Compatible Lenses: (as of June2014) Canon EF 16 35mm F2. 8L ll USM Canon EF17 40mm F4L USM Nikno AF S Nikkor 18 35mm F 3. 5 4. 5G ED Nikon AF S Nikkor 16 35mm F 4G ED VR * Compatible FC focus gear required for manual focusing (can be used in conjunction with a compatible zoom gear). *