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PHOKUS RESEARCH GROUP are releasing a new generation of their HOPLITE. It is a very useful accessory for night vision devices. With it, you can easily switch from focusing in the distance to focusing up close.
What's new now is the adjustment wheel. With the different hole diameters, the focus distance can now be adjusted more precisely than with the previous version. The previous version only had one hole. By the way, the principle behind it is the pinhole camera, for those wondering how it works.
PHOKUS RESEARCH GROUP online
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