The Lacerta 72/432 FPL-53 ED APO Apochromatic Telescope is a good alternative to the William Optics Megrez 72 as the same Megrez objective lens has been used to build this telescope.
The best colour correction that can be achieved in an ED doublet was achieved by choosing a high quality Ohara/Japan..
The Lacerta 72/432 ED APO Apochromatic Telescope is a good alternative to the William Optics Megrez 72 as the same Megrez objective lens has been used to build this telescope.
THIS VERSION COMES WITH A FIELD FLATTENER!
The best colour correction that can be achieved in an ED doublet was ..