ASKAR FRA600 F/5.6 APO REFRACTOR Tool 75 SKU AX-M42-1

75 SKU AX-M42-1

The most extraordinary feature of the Stargate is the technology used in the mirrors which are made up of borosilicate glass which has a very low expansion coefficient

50 mm x 71 mm Outer dimensions 72 mm x 100 mm Voltage 12 V

550 + 90 mm Weight

adding just enough friction and tension to allow the tube to move easily when nudged or stay solidly in position

ASKAR FRA600 F/5.6 APO REFRACTOR Tool 75 SKU AX-M42-1The Askar FRA 600 f 5. 6 is a professional apochromatic Petzval quintuplet refractor with an aperture of 108mm and a corrected field of 66mm in diameter. The lenses are assembled in two groups: an air spaced triplet on the front and a correcting doublet towards the rear. The objective lens includes two Extra Low Dispersion glass elements for a superb chromatic correction. Differently from standard ED refractors, the Askar 600 features a Petzval design