It’s worth mentioning that FRA 400/5.6 has a pair of multifunctional attachment tube rings owns the patent, it’s not all style and no substance though, the FRA shows well-conceived design and has a practical three-sided attach mounting points, which is convenient for photography with various accessories.
ASKAR FRA 400/5.6 Petzval like APO refractor has a 140mm back focus, and you don’t have to calculate the distance, attach astrography equipment is at its best as long as it is in sharp focus.
Being short and compact, ASKAR FRA400/5.6 can combine with various accessories, also amazingly simple to use, is an effective and very versatile photo-visual companion.
Many photographer knows that F5.6 is relatively ‘fast’, however, in order to meet the needs of expert astronomers, we specially designed a special ultra-short focal reducer FRA72RD, combine with FRA400/5.6, you can achieve a optically faster F3.9 focal ratio to reduce the exposure time, full frame is also supported, which is very rare type of refractor telescopes.
FRA400/5.6 is designed to “astrograph should meet satisfactory observation experience to enjoy capturing extended deep-sky objects, offering simpler configuration and better performance”. It would provide a significantly better user experience.