Airy Disk APO 204mm f/7 Triplet ED FK61 Apochromatic Refractor APO

ED204 product parameters Telescope model: ED204 Triplet air double separation compound achromatic Lens: H-FK61 CDGM Color: black / white Material: aluminum alloy Diameter: 204mm Focal ratio: f / 7 Focal length: 1428mm Coating: Full surface broadband multilayer coating Resolution: 0.57" Ultimate magnitude: 13.3mag Standard: Aluminum case, double hoop, Losmandy style dove tail plate, star finder mirror slot, 2" to 1.25" adapter barrel Options: CAA rotator, M48-T2 ring, 2" zenith mirror, eyepiece, Baader film filter Focuser: 4 "two-speed linear guide focuser with teeth Frame: aps-c Length (hood fully extended): 1563mm Length (hood fully retracted): 1332mm Weight: 23kg, including packaging 45kg, outer carton size 135cm * 62cm * 45cm