Teslong NTG100H 26in Rigid USB Borescope Black/Metallic Silver. 18 in to 3.94 in (30 mm to 100 mm) Depth of Field of the camera WITH 0.2 in (5 mm) side-view mirror: With lock ring on: 0 in to 0.28 in (0 mm to 7 mm) Without lock ring: 0 in to 0.39 in (0 mm to 10 mm) Depth of Field of the camera WITH 0.28 in (7 mm) side-view mirror: With lock ring on: 0 in to 0.08 in (0 mm to 2mm) Without lock ring: 0 in to 0.16 in (0 mm to 4 mm) Depth of Field of the camera WITH 0.33 in (8.3 mm) side-view mirror: With lock ring on: 0 in to 0.08 in (0 mm to 2 mm) Without lock ring: 0 in to 0.14 (0 mm to 3.5 mm) Depth of Field of the camera WITH 0.47 in (12 mm) side-view mirror: With lock ring on: 0 in to 0.06 in (0 mm to 1.5 mm) Without lock ring: 0 in to 0.12 in (0 mm to 3 mm) Caliber (depends on the size of the side-view mirror you use): 0.22 in (5 mm) Caliber and larger 0.28 in (7 mm) Caliber and larger 0.33 in (8.3 mm) Caliber and larger 0.47 in (12 mm) Caliber and larger LED Light: 6 Adjustable High-intensity LEDs Splash Water and Dust Resistant: Rated IP67 (maximum depth of 1-meter up to 30 minutes) under IEC standard 60529 Specifications for Teslong NTG100H 26in Rigid USB Borescope: Manufacturer: Teslong Color: Black/Metallic Silver Features of Teslong NTG100H 26in Rigid USB Borescope USB Design Compatible with Android Windows PC or Apple OSX 26 in Rigid Borescope Probe Fits .22 Caliber or Larger Barrels LED Ring Light Illuminated Removable Side View Mirror Package Contents: Teslong NTG100H 26in Rigid USB Borescope Borescope 3x 0.2 in (5 mm) Side-view Mirrors Aviation to USB-A Connector USB-C Adaptor Teslong TSNTG100H: NTG100H 26in Rigid USB Borescope Black/Metallic Silver