ZWO 131mm Quad APO Refractor Lego bright plage patches

bright plage patches

Slewing Speed

It’s recommended to put the bolt towards the box side as shown in the pictures above and not to block the USB ports and status indicators

providing exceptional dynamic range

ZWO 131mm Quad APO Refractor Lego bright plage patchesZWO FF131 APO Flat Field Apochromatic Refractor *Focus can be achieved within a back focus range of 4273 mm, measured from the M54M48 interface shoulder. Main Features Flexible Connectivity for Multiple Configurations Uniqueness Four Element Optical Design The FF131 APO features a four element, fully air spaced apochromatic optical design. All four elements work together to deliver a flat imaging field without the need for an additional field