Cheapest I can find is like $150 and I’m not even sure if those work
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If possible for your use, I’d look into thermal. I got into digital thermal a couple years ago but it felt like the prices were about to go down quickly for decent equipment.
There’s a lot of overlap between the ranges that night vision and thermal see (IR) so you can often get much much better digital images from a thermal sensor than you can with similarly priced “night vision” equipment in my experience. Everything has slightly different temperatures, even fractions of degrees, so you can make out features in plant leaves and things from a couple hundred meters.
