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increasing durability
CAUTION: Do not use non-recommended batteries (such as lithium primary batteries)
Durability and Design
36 Zoom/Focus Gear
Ikelite Focus Ring Lock for Sony FE 100mm Macro Lens Dome Ports increasing durabilityIkelite Focus Ring Lock for Sony FE 100mm F 2. 8 GM Macro Lens The Sony FE 100mm f 2. 8 Macro GM lens has a focus collar that moves forward for Autofocus (AF) and back for Manual Focus (MF). This is fine topside but underwater its not so useful. In fact, on any underwater housing, theres a chance to inadvertently bump the collar when installing the lens. And if youre left in manual focus without a focus ring installed, youre going to end up missing