The Askar FRA600 telescope was built with imaging in mind. The Petzval flat field design is optimized for use with today's full-frame astrophotography cameras for edge-to-edge sharp photos with minimal chromatic aberration and distortion.
Askar FRA600 4.3" 108mm F/5.6 Quintuplet Petzval Flat Field Astrograph
Featuring two ED lenses integrated into the front triplet, with a rear doublet flattens the field and reduces chromatic aberration, the Askar FRA600 quintuplet telescope is ready to take professional-quality photos of your favorite nebulae, galaxies and deep space objects. The two rear lenses have a diameter of 80mm, which counterbalances decreasing field illumination, allowing for sharp stars all the way to the edge of the 66mm image circle. Just add your DSLR or astrophotography camera to start capturing detailed images of the night sky.
Askar FRA600 Sample Images
APO Quintuplet Refractor Telescope for Sharp, Clear Images
Thanks to the flatfield 3 + 2 quintuplet optical design of the Askar FRA600, there is no need to add an additional flattener to adapt from visual to astrophotography. The large 4.2" rack-and-gear-based focuser offers smooth operation, even with heavy cooled cameras or DSLRs attached to the telescope. The dual-speed focuser allows for 1:10 micro adjustments, allowing you to take full advantage of the clarity this telescope offers.
Askar FRA600 Spot Diagram
FRA600 Light Path