A Barlow Lens increases the magnification of an eyepiece by adding additional lenses into the lightpath.

Please use the multiselector to choose your eyepieces from a selection of 1551.

Zoom Eyepieces are grouped at the bottom of the list.

Multiple eyepieces can be selected.

If you hold the [SHIFT] key down then click, a range of eyepieces will be selected.

If you hold the [CTRL] key down then click you can select multiple individual eyepieces.