FRA300 Pro

The Askar FRA300 Pro is a compact 60mm f/5 Petzval quintuplet astrograph designed for wide-field astrophotography and delivers exceptional flat-field performance across a 44mm image circle with virtually no chromatic aberration. Its fast f/5 focal ratio enables short exposure times compared to slower designs, making it ideal for capturing detailed images of nebulae, star clusters, and large-scale celestial objects while remaining highly portable for field use. The fully air-spaced quintuplet design includes ED glass for superior color correction, and the built-in flat field eliminates the need for additional field flatteners or complex backfocus calculations. With a central RMS radius reaching just 2 micrometers, the FRA300 Pro delivers razor-sharp star images that satisfy demanding astrophotographers seeking professional optical performance in a compact, cost-effective package.