Image tube comparison
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We will forever be curious as to how different image intensifier tubes compare to each other. While nothing can replace an in person "tasting", video is the best representative way to present how different tubes compare. It is also very important to compare in both high and low light environments as with enough light almost any tube can be made to look good. However as light levels decrease entry level tubes will start to struggle sooner than higher end tubes. Once all tubes are working hard to produce an image we can really understand where a system sits in performance.
lab testing
USAF 1951 Resolution Target projected by a Hoffman Engineering ANV-126A Night Vision Test Set.
To objectively read resolution, look at each numbered line pair Group, and see which Set is resolvable as being 3 vertical and 3 horizontal black lines with space in between. See which set each tube is able to resolve to and compare.
test paramaters
▪ All systems used new production BrightPath Solutions MIL40 Objective Lens and Eyepiece
▪ Sony A7S3 with SEL50F25G
▪ Diopter set to camera focus to minimize changes in distortion profile between shots
▪ All systems manually focused and checked twice
▪ Videos are not edited or altered in any way beyond labelling and cropping to fit page