SEA & SEA FC Focus Gear for Canon EF 16-35mm f/4L IS USM Lens
SEA & SEA FC Focus Gear for Canon EF 16-35mm f/4L IS USM Lens
SEA & SEA FC Focus Gear for Canon EF 16-35mm f/4L IS USM Lens
Mfr# 31175
Our Price: $149.95
Availability: In Stock
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This focus gear enables manual focus adjustment for the Canon EF 16-35mm f/4L IS USM lens via the Extension Ring 46 with Focus Knob #30117 when used with Sea&Sea MDX-series housings.

The focus gear is useful in the following situations:

* When you need to manually adjust focus as your subject is not situated within the AF frame or in order to maximize the effect of the lens’s minimal shooting distance of 28cm/11 inches.
* When you shoot fast moving subjects, like dolphins under limited ambient light (dark environment), so auto focus does not function effectively.
* When you shoot “half-in half-out” photos and would like to manually adjust focus on subjects on land and underwater.
* The focus gear can be used in conjunction with the zoom gear (product #31174).

Compatibility
Lenses Canon EF 16-35mm f/4L IS USM
Housings Sea&Sea MDX-series Housing
Basic
Materials Corrosion-resistant aluminum alloy (anodized)
User Manual  Download User Manual 
Macro Lens Port Extention / Base Gear
Canon EF 100mm f/2.8L Macro IS USM #3554B002 + Kenko Teleplus HD 1.4X DGX Sea&Sea DX Macro Port 87 #30119 Sea&Sea Extension Ring 20L #31179 Sea&Sea Focus Gear #31180
Canon EF 100mm f/2.8L Macro IS USM #3554B002 Sea&Sea DX Macro Port 87 #30119   Sea&Sea Focus Gear #31155
Canon EF 100mm f/2.8 Macro USM Sea&Sea DX Macro Port 87 #30119   Sea&Sea Focus Gear #31132
Canon EF-S 60mm F2.8 Macro USM + Kenko Teleplus HD 1.4X DGX Sea&Sea DX Macro Port 52 #30111 Sea&Sea Extension Ring 20L #31179 Sea&Sea Focus Gear #31126
Canon EF-S 60mm F2.8 Macro USM Sea&Sea DX Macro Port 52 #30111   Sea&Sea Focus Gear #31126
Wide Lens Port Extention / Base Gear
SIGMA 10mm F2.8 EX DC FISHEYE HSM Sea&Sea Fisheye Dome Port 240 #30116   Sea&Sea Focus Gear #31152
Sea&Sea NX Compact Dome Port #56601 Sea&Sea SX Extension Ring #50261
Canon Canon EF14mm F2.8L II USM Sea&Sea Fisheye Dome Port 240 #30116 Sea&Sea SX Extension Ring #50261 Sea&Sea Focus Gear #31149
Sea&Sea NX Compact Dome Port #56601
Athena Dome Port OPD-F170V #OPD-F170V-SS Sea&Sea Extension Ring 40 #56111
Canon EF15mm F2.8 Fisheye Sea&Sea Fisheye Dome Port 240 #30116   Sea&Sea Focus Gear #46320
Sea&Sea NX Compact Dome Port #56601
Athena Dome Port OPD-F170V #OPD-F170V-SS
SIGMA 15mm F2.8EX DG DIAGONAL FISHEYE Sea&Sea Fisheye Dome Port 240 #30116   Sea&Sea Zoom Gear #31114
*Use zoom gear for EF16-35mm
Sea&Sea NX Compact Dome Port #56601
Athena Dome Port OPD-F170V #OPD-F170V-SS
Canon EF 24mm F1.4L USM Sea&Sea Fisheye Dome Port 240 #30116 Sea&Sea SX Extension Ring #50261 Sea&Sea Focus Gear #31163
Athena Optical Dome Port OPD-F200V #OPD-F200V-SS
Athena Optical Dome Port OPD-F170V #OPD-F170V-SS
Canon EF 24mm F2.8 IS USM Sea&Sea Fisheye Dome Port 240 #30116 Sea&Sea SX Extension Ring #50261 Sea&Sea Focus Gear #31164
Athena Optical Dome Port OPD-F200V #OPD-F200V-SS
Athena Optical Dome Port OPD-F170V #OPD-F170V-SS
Canon EF 28mm F2.8 IS USM Sea&Sea Fisheye Dome Port 240 #30116 Sea&Sea SX Extension Ring #50261 Sea&Sea Focus Gear #31164
Athena Optical Dome Port OPD-F200V #OPD-F200V-SS
Athena Optical Dome Port OPD-F170V #OPD-F170V-SS
Zoom Lens Port Extention / Base Gear
Canon EF 8-15mm F4L Fisheye USM
*3
Sea&Sea Fisheye Dome Port 240 #30116   Sea&Sea Zoom Gear #31154
Sea&Sea Focus Gear #31161*4

Deeproof Zoom Gear #ZG-C815K14-SS
Sea&Sea NX Compact Dome Port #56601
Athena Dome Port OPD-F170V #OPD-F170V-SS
Canon EF 8-15mm F4L Fisheye USM
with
Kenko 1.4x Teleplus Pro 300 DG Teleconverter
*3
Sea&Sea Fisheye Dome Port 240 #30116 Sea&Sea SX Extension Ring #50261 Deeproof Zoom Gear #ZG-C815K14-SS
Sea&Sea NX Compact Dome Port #56601
Athena Dome Port OPD-F170V #OPD-F170V-SS
Canon EF-S 10-18mm f/4.5-5.6 IS STM Sea&Sea Fisheye Dome Port 240 #30116 Sea&Sea SX Extension Ring #50261 Sea&Sea Zoom Gear #31176
Sea&Sea NX Compact Dome Port #56601
Athena Optical Dome Port OPD-F170V #OPD-F170V-SS
Canon EF-S 10-22mm f/3.5-4.5 USM Sea&Sea Fisheye Dome Port 240 #30116 Sea&Sea Extension Ring 40 #56111 Sea&Sea Zoom Gear #31125
Sea&Sea NX Compact Dome Port #56601
Canon Canon EF 11-24mm F4L USM Sea&Sea Port and Zoom Gear Set #30131 Sea&Sea Extension Ring 40 #56111 Sea&Sea Zoom Gear #30131
Athena Optical Wide Zoom Port 200MF #OPD-WZ200-50MF-SS Athena Zoom Gear #ZG/11-24c-SS
Canon EF 16-35mm F2.8L II USM Sea&Sea Fisheye Dome Port 240 #30116 Sea&Sea Extension Ring 40 #56111 Sea&Sea Zoom Gear #31114
Athena Dome Port OPD-F170V #OPD-F170V-SS Sea&Sea Extension Ring 40 #56111
and
Sea&Sea SX Extension Ring #50261
Canon EF 16-35mm F2.8L USM Sea&Sea Fisheye Dome Port 240 #30116 Sea&Sea Extension Ring 40 #56111 Sea&Sea Zoom Gear #31114
Sea&Sea NX Compact Dome Port #56601
Athena Dome Port OPD-F170V #OPD-F170V-SS Sea&Sea Extension Ring 40 #56111
and
Sea&Sea SX Extension Ring #50261
Sea&Sea Fisheye Dome Port 240 #30116 Sea&Sea Extension Ring 46 with Focus Knob #30117 Sea&Sea Zoom Gear #31114
and
FC Focus Gear #31165
Canon EF 16-35mm f/4L IS USM Sea&Sea Fisheye Dome Port 240 #30116 Sea&Sea Extension Ring 40 #56111 Sea&Sea Zoom Gear #31174
Sea&Sea NX Compact Dome Port #56601
Athena Dome Port OPD-F170V #OPD-F170V-SS
Sea&Sea Fisheye Dome Port 240 #30116 Sea&Sea Extension Ring 46 with Focus Knob #30117 Sea&Sea Zoom Gear #31174
and
FC Focus Gear #31175
Canon EF 17-40mm F4L USM Sea&Sea Fisheye Dome Port 240 #30116 Sea&Sea Extension Ring 40 #56111 Sea&Sea Zoom Gear #31109
Sea&Sea NX Compact Dome Port #56601
Athena Dome Port OPD-F170V #OPD-F170V-SS Sea&Sea Extension Ring 40 #56111
and
Sea&Sea SX Extension Ring #50261
Sea&Sea Fisheye Dome Port 240 #30116 Sea&Sea Extension Ring 46 with Focus Knob #30117 Sea&Sea Zoom Gear #31109
and
FC Focus Gear #31170
Tokina AT-X 107 DX Fisheye 10-17mm F3.5-4.5(IF) Sea&Sea Fisheye Dome Port 240 #30116 Sea&Sea SX Extension Ring #50261 Sea&Sea Zoom Gear #31114
or
Deeproof Zoom Gear #ZG-ATX107-SS
Sea&Sea NX Compact Dome Port #56601
Athena Dome Port OPD-F170V #OPD-F170V-SS Sea&Sea SX Extension Ring #50261
Tokina AT-X 107 DX Fisheye 10-17mm F3.5-4.5(IF)
with
Kenko 1.4x Teleplus Pro 300 DG Teleconverter
Sea&Sea Fisheye Dome Port 240 #30116 Sea&Sea SX Extension Ring #50261 Deeproof Zoom Gear #ZG-T107K14-SS
Sea&Sea NX Compact Dome Port #56601
Athena Dome Port OPD-F170V #OPD-F170V-SS Sea&Sea Extension Ring 40 #56111

*3 for FULL Frame camera, it may be necessary to remove the dome shades at the widest picture angle so they do not appear in the images.
*4:Either the zoom gear or the focus gear can be mounted on the lens. When the zoom gear is used, manual focus is not possible. When the focus gear is used, the zoom gear cannot be used.

 

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