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Chapter 10 Specifications
10.3 Optical adapter specifications
When the optical adapter is mounted on the insertion tube.
NOTE
*1 Indicates the range within which the image can be viewed clearly.
*2 The adapter can be inserted into a φ 8.5 mm hole when it is mounted on the insertion tube.
*3 Indicates the length of the rigid portion at the insertion tube's distal end when mounted.
Name AT120D/
NF-IV88Y
AT120D/
FF-IV88Y
AT120S/
NF-IV88Y
AT120S/
FF-IV88Y
AT60D/
60D-IV88Y
AT60S/
60S-IV88Y
Model number 120DN V88Y 120DF V88Y 120SN V88Y 120SF V88Y 60/60D V88Y 60/60S V88Y
Color Red Green Red Green Blue Blue
Field of view 120 120 120 120 60/60 60/60
Direction of view Forward Forward Side Side Forward/
Forward
Side/Side
Depth of field
*1
4 to 190 mm 25 to ∞ mm 1 to 25 mm 5 to ∞ mm 5 to ∞ mm 4 to ∞ mm
Outer diameter
*2
φ 8.5 mm φ 8.5 mm φ 8.5 mm φ 8.5 mm φ 8.5 mm φ 8.5 mm
Rigid distal end length
*3
30.7 mm 30.7 mm 35.6 mm 35.6 mm 36.9 mm 39.6 mm
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