刚看到达 Sportsman's Guide 有卖 Pulsar Digisight N550 night vision scope for $1350. 影像看起来还不错, 不过没有 generation rating. 听 Amazon 上的 review 说因为是用 CCD 所以不能算是 true night vision scope but equivalent to generation 2.5+. Isn't all nightvision device uses CCD or CMOS to enhance night image? Or just infra-red sensor? 我对 nightvision 这方面不了解。 请懂的专家解说。 Thanks. BTW, is this nightvision device worth the money?