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This clear door allows you to see the o-ring seal
Out of stock gear rings are permanently discontinued and no longer available
An 8” diameter dome made of optical grade acrylic
Cannot be used with the W-30 lens
75x conversion factor to correct for the refractive magnification of a flat port underwater
FL Flat Port For Lenses Up To 2.5 Inches Update Kits This clear door allows youFlat ports are recommended for standard, macro and telephoto lenses. Due to refraction, flat ports reduce the angle of coverage of a lens and magnify the image. This makes the flat port ideal when using standard, macro or zoom lenses to shoot small subjects. Note that if a port is long enough to accommodate the full length of a 1: 1 macro lens, the lens may vignette when used at infinity. If access to the lens' full range is desired, then select a
