Instruction Manual
39
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EMA-1（Optional accessory）
Attaching a screw-in type Fieldscope eyepiece to an EDG Fieldscope with the
EMA-1.
Note: It may be quite hard to screw in because of the retention of the O-ring, so
ensure that it is screwed in tightly.
Take care to do this, because if the EMA-1 is not screwed in tightly enough,
it will not be airtight.
Correctly mounting EMA-1 and
eyepiece.
Incorrectly mounted EMA-1
（
not screwed in suciently: O ring is still visible.)