Technical Specs Model Number: NTG100 Probe Type: Flexible steel fiber probe Diameter: 0.197 in (5.0 mm) Probe Length: 45 in (115 cm) Data Cable Length: 60 in (150 cm) Megapixel: 1.0 Megapixel Resolution: 1280x720 pixels Viewing Angle: 70Adeg Depth of Field of the camera WITHOUT side-view mirror 1.18 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 Mfg: Teslong