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Choose answer…ArmBaseCourse focusEyepiece lensEyepiece tubeFine focus Light sourceObjective lensStage0

Choose answer…ArmBaseCourse focusEyepiece lensEyepiece tubeFine focus Light sourceObjective lensStage0

Choose answer…ArmBaseCourse focusEyepiece lensEyepiece tubeFine focus Light sourceObjective lensStage0

Choose answer…ArmBaseCourse focusEyepiece lensEyepiece tubeFine focusLight sourceObjective lensStage0

Choose answer…ArmBaseCourse focusEyepiece lensEyepiece tubeFine focus Light sourceObjective lensStage0

Choose answer…ArmBaseCourse focusEyepiece lensEyepiece tubeFine focus Light sourceObjective lensStage0

Choose answer…ArmBaseCourse focusEyepiece lensEyepiece tubeFine focus Light sourceObjective lensStage0

Choose answer…ArmBaseCourse focusEyepiece lensEyepiece tubeFine focus Light sourceObjective lensStage0

Choose answer…ArmBaseCourse focusEyepiece lensEyepiece tubeFine focus Light sourceObjective lensStage0