Long Perng 66mm Refractor FRA600 while maintaining the same field

while maintaining the same field angle

Neither camera is universally "better"—they simply suit different styles of astrophotography

But if use magnet on filter plate

the change of design/appearance/parameters has not been updated in time

Long Perng 66mm Refractor FRA600 while maintaining the same fieldLong Perng 66mm ED APO Apochromatic Refractor Telescope Experience the precision of the Long Perng 66mm Refractor, designed with a 400mm focal length for a fast f 6 focal ratio, outperforming standard APOs. This high speed ED APO doublet offers brighter images, a broader field of view, and shorter exposure times for deep sky objects. Equipped with an 80mm air spaced doublet lens crafted with one element of FPL 51 extra low dispersion (ED) glass, it