3-5
You scope has ability to focus either long range or short. Focus the
front lens to rotate it until the image and the grain are both sharp.
FIGURE 3-3. FOCUS ADjUSTMENT
NOTE
The front lens should be readjusted for viewing objects at diffe-
rent distances. Rotate the focusing ring clockwise for far focus,
counterclockwise for near focus.
3.2.3. POLARITY
The function of polarity switching is accessible only in black and
White models.
FIGURE 3-4. DISPLAY POLARITY MODES
POLARITY button switches the direct display mode into the reverse
one, i.e. from hot-white/cold-black into hot-black/cold-white mode.
If the polarity is white-hot, the image will be with hotter objects dis-
played as white, and the rest of the image displayed as black, and
vice versa: with hotter objects displayed as black, if the polarity is
black-hot.
EYEPIECE DIOPTER
aDJUSTmenT rInG
FocUSInG rInG
HOT-WHITE/COLD-BLACK MODE
HOT-BLACK/COLD WHITE MODE
Summary of Contents for ThOR Series
Page 8: ...iii ...
Page 9: ...1 1 SECTION I introduction ...
Page 21: ...2 1 SECTION II assembly and preparation ...
Page 28: ...2 8 ...
Page 29: ...3 1 SECTION III OPERATION ...
Page 37: ...4 1 SECTION IV maintenance instructions ...
Page 43: ...4 7 ...