Adaptador guía fuera del eje de prisma grande ZWO OAG-L-68 M68 OAG para ZWO ASI Square EFW
OAG-L is the latest iteration of M68 OAG with a larger prism size of 12x12mm. The bigger clear aperture brings wider field of view in guiding. It is easy to use, and suitable for users who are interested in long focal length photography.