XANB20: Turn the focus wheel on the bottom of the device until the screen is focused.

XANB30: Turn the focus wheel on the bottom of the device until the screen is focused.

XANB35: Turn the focus wheel on the bottom of the device until the screen is focused.

XANB50: Turn the focus wheel on the bottom of the device until the screen is focused.

XANB60: Turn the focus wheel at the front of the device that is around the lens until the screen is focused.

XANR100: Turn the focus wheel at the front of the device that is around the lens until the screen is focused.

XANS500: Focus wheel is on the top towards the front part of the scope that is circular and protrudes up with a + and – cursor connected by an arrow