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Neither camera is universally "better"—they simply suit different styles of astrophotography
while maintaining the same field angle
it is important to consider the limiting focal ratio to avoid vignetting
making it a versatile choice for astronomers
But if use magnet on filter plate
Long Perng 66mm Refractor FRA600 Neither camera is universally "better"—theyLong 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
