A look through my new WP Photonis Echo RNVGs from Goonin Gear. Here are the specs on them: Tube #1 FOM: 2152, SNR: 31.66, EBI: 0.09, Halo: 0.83 Tube #2 FOM: 2162, SNR: 31.80, EBI: 0.11, Halo: 0.87 : r/NightVision
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Photonis Echos - what they are and how they perform – Cold Harbour Supply
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