3. Convergence Angle Test
The convergence angle of the loupe optics is preset at the factory to the working
distance. Normally no adjustment is required.
3.1 To test the convergence angle, draw a single dot on a piece of paper. Focus on the
dot with the loupe optics at the proper working distance. The convergence settings
should not require adjustment unless two dots are seen.
3.2 Two horizontal dots indicate horizontal misalignment. Proceed to step 4 to correct
the convergence angle.
3.3 In the rare case that two vertical dots indicate a vertical misalignment, the loupes
should be returned to PeriOptix for adjustment.
Normal Horizontal
misalignment
Vertical
misalignment
3.1 3.2 3.3
3.1 3.2 3.3
4. Adjusting Convergence Angle
Before adjusting the convergence angle, set the IPD (see step 2). Then, follow the
instructions in step 3. There is a convergence error if two horizontal dots are seen.
Rotate the lens barrels to eliminate the horizontal convergence error.
4.1 To adjust the horizontal convergence angle, first look downward at the loupe optics
from the top to see if the barrels are equally angled.
4.2 Barrels out of alignment will appear asymmetrical.
4.3 For Legacy optics, if a barrel seems out of alignment, loosen both convergence
adjustment screws with a phillips screwdriver. For Panoramic optics, use the
provided hex screwdriver.
4.4 Adjust one or both barrels so they are pointing slightly and equally inward.
4.5 Slightly tighten both screws to keep them in alignment. Focus on the dot from Step 3.
If two dots are still seen, repeat steps 4.1 through 4.5 until one dot is seen and both
barrels are pointing inward equally. Once set, tighten both convergence screws on
each barrel.
Barrels in
allignment Barrels out
of allignment
4.2
denmat.com
4.1 4.2 4.3 4.4
