Canon 10x30 IS II Instructions Manual page 6

Nomenclature
Focusing knob
Lamp
Image Stabilizer
button
Dioptric correction
scale
Dioptric correction
ring
Eyepiece lenses
(The 12x36 IS III is shown in the illustrations.)
Objective lenses
Eyepiece lens caps
Eyecup
Battery chamber
cover
Strap eyelet
ENG-5