Device with at least one adjustable sample holder and method of changing holder tilt angle and method of preparing a lamella

A device with at least one adjustable sample holder comprising an adjustable sample holder located inside a working chamber on a placement area of a manipulation stage, wherein the adjustable sample holder comprises a moveable element with a place for sample placement, a revolving shaft having a longitudinal axis, at least one pillar adapted to support the shaft, the device further comprising a mechanism for fixing the moveable element comprising a crown mounted on the shaft and a counterpart adapted to immobilize the shaft in relation to the counterpart, the mechanism for fixing further being adapted to set the moveable element into a stationary position, in which a movement range of the manipulation stage is retained, and a moveable position, in which the adjustable sample holder has at least one degree of freedom, wherein in the moveable position of the moveable element is adapted for rotation around a longitudinal axis of the shaft, allowing changing of the position of the placement area in relation to the moveable element.