Newcon Optik 150 - Manual (Page 12)

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If ambient light is insufficient an IR illuminator can be
activated by pressing switch (5).
Note: After a while the Unit will shut itself off to prevent
battery drain.
5.4. Using the camera/video adapter.
Prior to installing the adapter, carefully remove the eye cup.
The adapter consists of 2 rings:
a) Camera adapter is 52x1 mm size. It will fit the filter
thread of lenses of many consumer
cameras, like Nikon etc.
b) Video adapter is 37x1mm. It will fit
most Sony cameras and some other as
well.
If none of the provided adapters fits your
camera check local camera store and camera
manufacturer for proper step up/step down rings.
5.5. Using interchangeable lenses.
The unit is equipped with PENTAX “screw type” removable
lens F 50/1.2, M 42x1. It will fit most Pentax screw type
lenses or, using proper adapters, many other lenses.
Note: When putting back on the original lens, make sure to
screw the lens on all the way to prevent humidity penetration.