Askar FRA400C Quintuplet Petzval Flat-Field Astrograph (FRA400C) Solar 1 kg counterweight for iOptron

1 kg counterweight for iOptron SmartEQTM and SmartEQ ProTM mounts

BBHS® provides a much broader spectral range with 98–99% reflection from just above 390 nm to 2000 nm

fold-down eyeshield and multicoating are features

5° | Reduction Ratio 1:128 Resolution 2

24-bit IPS Storage Space 32GB Magnification 1x-1600x Image Sensor CMOS 2

Askar FRA400C Quintuplet Petzval Flat-Field Astrograph (FRA400C) Solar 1 kg counterweight for iOptronThe refreshed, budget friendly iteration of FRA400, is suitable for astrophotography, daily photography, and visual observation. Key FRA400C Features Quintuplet ED Refractor: The FRA400C features a 72mm aperture, 400mm focal length, and a focal ratio of 5. 6. It adopts a quintuplet lens design with two ED glasses, supporting a 44mm full frame image circle. Self Flattened Design: The optical structure of FR4A400C is the same as that of the FRA400,