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Ever wonder how different night vision specs actually mean in terms of real world performance? Join us in this deep dive of each night vision tube we carry to find out what works best for you. In this video we will be comparing our tubes in a lab setting on the Hoffman, as well as in real life environments in a variety of different lighting conditions. TUBES TESTED: NNVT4 Non Autogated FOM: 1451 SNR: RES: 64lp/mm Gain: 12400 EBI: NNVT4AG FOM: 1672 SNR: Res: 64lp/mm Gain: 11000 EBI: Photonis ECHO FOM: 1966 SNR: Res: 67 Gain: 9677 EBI: Photonis ECHO FOM: 2297 SNR: Res: 68 Gain: 10169 EBI: Photonis 4G High Gain FOM: 2204 SNR: Res: 68 Gain: 26782 EBI: CAMERA SETTINGS FOR THIS TEST: A7SIII with SEL24F28G lens CHS Cine-NV adapter 4k/24fps SLOG-3 with rec709 LUT ISO (NOTE: This higher ISO is the dual native on SLOG-3 on A7SIII, so we can get the least amount of camera noise with the best video and use a smaller aperture so the clarity from the camera lens is less impacted by the camera's aperture) F5.6 to F11, we changed the aperture to better expose the NODs in bright light conditions, this does not change the sharpness or focus of the image from our testing though stopping down can induce some softness to the sides of the image 1/48 Shutter 5800K White Balance (we found this to be decently true to colour on most NVGs) Timestamps: 0:00 Intro 1:23 Testing Parameters 2:23 Hoffman Resolution Testing 8:08 Real World Testing Intro 8:22 Suburban Lighting Test 10:54 Autogating Comparisons 13:25 Outdoor Testing Intro 13:57 Rivebank Test (Full Moon, Low Cloud Cover) 16:30 Forest Hike Test (Full Moon, Low Cloud Cover, Medium Canopy) 18:51 Deep Forest Test (Full Moon, Low Cloud Cover, Moon Behind Hills, Heavy Canopy) 21:51 Indoor Test (Stairwells, Low Ambient Light) 24:20 Extreme Low Light Indoor Test 27:08 Which Tube Is Best for You? --- Your trusted source for night vision and thermals. See the Unseen. Website: Instagram: Facebook: Email: sales@
