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Requires 55mm (+/-2) of back focus/spacing between the device and the camera sensor
a line filter for only the two emission lines of oxygen
Water-resistant construction for added durability in outdoor conditions
the Explore Scientific ED127 Essential Series Air-Spaced Triplet Refractor utilizes genuine HOYA FCD1 ED glass to deliver stunning details of the night sky’s most notable treasures
Item Number 721220
4K Waterproof Action Camera with WiFi 120-series-eyepiece Requires 55mm (+/-2) of backWith its waterproof casing, multiple mounting accessories, 6 axis stabilization unit and wide 170 field of view, the National Geographic 4K WiFi Waterproof Action Camera has everything you need to capture the extremes of all of your outdoor adventures in ultra high definition. Whether you are trail riding, kayaking, snorkeling or climbing, this versatile camera can document your experiences in a range of resolution options including 4K video up to 60
