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Designed for both the casual stargazer and the dedicated observer
Neither camera is universally "better"—they simply suit different styles of astrophotography
The large objective lens can gather more light to provide more clear image and increase your field of view range
it is important to consider the limiting focal ratio to avoid vignetting
But if use magnet on filter plate
Long Perng 66mm Refractor FRA600 Designed for both the casualLong 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
