APM collimation guide for 80mm,
100mm and 110mm MS-Series
Binoculars
1) Preparation before adjustment
Loosen the lightly glued on rubber covers on both sides
as shown in the picture. Don't worry, they won't break
2) Adjustment
The adjusting screws are covered by a soft silicone, which you
should first remove with a small screwdriver or knife. Then take a
pointed object, e.g. a needle and pull out the solid black rubber
stoppers
B
B
A
A
2) Adjustment
Adjustment during Daytime:
Place the binoculars on a stable tripod, set your eye relief
precisely, aim for an object that is as far away as possible (several
hundred meters if possible). It should have sharp edges and ideally
even a reflection from the sun (like a star). To check the
collimation, slowly move your eyes away from the eyepieces about
10cm without losing sight of the object. Now look at the image on
the eyepieces. If the binocular is misaligned, this is now clearly
recognizable. Looking in tired or from a wrong angle falsifies the
result.
2) Adjustment
Adjusting in the night sky:
Also place the binoculars on a stable tripod and set your
interpupillary distance precisely. Look for a bright star such as
Polaris, as it does not move so in order to prohibit uncomfortable
viewing. Stand or sit behind the binoculars in a comfortable
position with a very pleasant view. Looking in tired or from a
wrong angle falsifies the result.
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2) Adjustment
Start the adjustment with a suitable Philips screwdriver on the
brass screws that are now visible. Start with one side with the
external screw B, the one farther away from the eyepiece. It is
often sufficient to turn a screw slightly. If this is not enough, use
the external screw B on the other tube. With this methode you
will be successful in 99% of all cases. If this does not lead to a
successful result either, use the inner screws A.
When adjusting and looking through the binoculars, please
consider the fact that your eyes accommodate very quickly. It is
best to look over the binoculars from time to time in order to relax
your eyes. If you think everything fits now, move your eyes about 3
to 4cm away from the binocular eyepiece. This increases the
detectability of an adjustment or misalignment considerably, since
your eyes hardly accumulate.
4) After successful adjustment you now have
several options:
1) Either you simply fold down the rubber covers and you
are done. You can, but you do not have to apply softglue on the inside of the rubber covers
2) Or you put the rubber plugs back in and seal the hole
with some silicone, thus restoring the water tightness.
But you only need this for permanent wet use, e.g. on
a ship or in a rain forest. Then simply fold down the
rubber covers, glue them using soft-glue and you are
done.
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