The LX65 Series 6" ACF has an Advanced Coma-Free (ACF™) optical design offering the coma-free pinpoint star images and flatter image fields while reducing astigmatism and eliminates diffraction spikes.
The LX65 Series 8" ACF has an Advanced Coma-Free (ACF™) optical design offering the coma-free pinpoint star images and flatter image fields while reducing astigmatism and eliminates diffraction spikes.