Adjustment device for the adjustment of a telescope sight, • with a manual adjustment element, ∘ which is positioned around a rotation axis and can be turned relative to a base, • wherein a locking unit is positioned between the base and the adjustment element, ∘ which has locking notches arranged over the circumference around the rotation axis, ∘ wherein a first locking element of the locking unit is located opposite to one of the locking notches depending on the rotational position of the adjustment element relative to the base, • wherein, the adjustment device has a stop device, ∘ which has a manually actuated stop element, ▪ which can be moved manually from a release position into a locked position, ▪ wherein the stop element is linked to the first locking element via an actuator, ▪ wherein the first locking element is mechanically set in the locked position using the actuator into the respective opposite locking notch and locks a rotation of the adjustment element relative to the base, wherein the stop element has a hub which is located between the base and the adjustment element, and which can be turned independently of the adjustment element relative to the base between the release position and the locked position around the rotation axis, wherein a grip is located on the hub, which extends radially over the adjustment element relative to the rotation axis and wherein the actuator has a control curve, which kinematically links the stop element to the first locking element. • with a manual adjustment element, ∘ which is positioned around a rotation axis and can be turned relative to a base, ∘ which is positioned around a rotation axis and can be turned relative to a base, • wherein a locking unit is positioned between the base and the adjustment element, ∘ which has locking notches arranged over the circumference around the rotation axis, ∘ wherein a first locking element of the locking unit is located opposite to one of the locking notches depending on the rotational position of the adjustment element relative to the base, ∘ which has locking notches arranged over the circumference around the rotation axis, ∘ wherein a first locking element of the locking unit is located opposite to one of the locking notches depending on the rotational position of the adjustment element relative to the base, • wherein, the adjustment device has a stop device, ∘ which has a manually actuated stop element, ▪ which can be moved manually from a release position into a locked position, ▪ wherein the stop element is linked to the first locking element via an actuator, ▪ wherein the first locking element is mechanically set in the locked position using the actuator into the respective opposite locking notch and locks a rotation of the adjustment element relative to the base, wherein the stop element has a hub which is located between the base and the adjustment element, and which can be turned independently of the adjustment element relative to the base between the release position and the locked position around the rotation axis, wherein a grip is located on the hub, which extends radially over the adjustment element relative to the rotation axis and wherein the actuator has a control curve, which kinematically links the stop element to the first locking element. ∘ which has a manually actuated stop element, ▪ which can be moved manually from a release position into a locked position, ▪ wherein the stop element is linked to the first locking element via an actuator, ▪ wherein the first locking element is mechanically set in the locked position using the actuator into the respective opposite locking notch and locks a rotation of the adjustment element relative to the base, wherein the stop element has a hub which is located between the base and the adjustment element, and which can be turned independently of the adjustment element relative to the base between the release position and the locked position around the rotation axis, wherein a grip is located on the hub, which extends radially over the adjustment element relative to the rotation axis and wherein the actuator has a control curve, which kinematically links the stop element to the first locking element. ▪ which can be moved manually from a release position into a locked position, ▪ wherein the stop element is linked to the first locking element via an actuator, ▪ wherein the first locking element is mechanically set in the locked position using the actuator into the respective opposite locking notch and locks a rotation of the adjustment element relative to the base,