NNVTs vs Photonis ECHO & 4G High Gain - We Compare All the Night Vision Tubes We Carry!

Описание: Ever wonder how different night vision specs actually impact 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: 22.67
RES: 64lp/mm
Gain: 12400
EBI: 0.12

NNVT4AG
FOM: 1672
SNR: 26.12
Res: 64lp/mm
Gain: 11000
EBI: 0.12

Photonis ECHO
FOM: 1966
SNR: 29.35
Res: 67
Gain: 9677
EBI: 0.16

Photonis ECHO+
FOM: 2297
SNR: 33.78
Res: 68
Gain: 10169
EBI: 0.13

Photonis 4G High Gain
FOM: 2204
SNR: 32.42
Res: 68
Gain: 26782
EBI: 0.19


CAMERA SETTINGS FOR THIS TEST:
A7SIII with SEL24F28G lens + CHS Cine-NV adapter
4k/24fps SLOG-3 with rec709 LUT
12.8K 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?
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