The subject matter discloses a medical imaging device, comprising a handle adapted to operate and maneuver the medical imaging device, an elongated rigid shaft connected to the handle, and an extendible sleeve configured to cover at least a portion of the elongated rigid shaft. The extendible sleeve comprises a rigid section comprising at least one optical gear and an extendible section, wherein extending the extendible section pushes the rigid section along a longitudinal axis of the elongated rigid shaft, and wherein sliding the rigid section over the elongated shaft changes the at least one optical gear field of view to provide a different linear field of view in an object space.
