Focal Length 1200mm (47.2”) Objective Lens Diameter 150mm (6”) Focal Ratio F6 Optical tube: Seamless aluminum Objective lens: achromatic, air-spaced Focal length, Objective lens diameter, and Focal Ratio: Eyepieces: 25mm and 6.5mm Plossls, 1.25” Focuser: Rack and pinion Diagonal: 45 degree correct-image prism diagonal Finder scope: 10x magnification, 30mm aperture; crosshairs Mount: equatorial mount with polar axis finder scope Tripod: Aluminum Total Weight 21.4kgthanks!
Probably notFirst of all the specifications are wrongA 150 mm objective with a 1200 mm focal length makes it f/8, not f/6 as statedThis immediately makes me suspiciousSecondly, the 45° erecting prismThese are only found on cheap terrestrial refractorsAny serious astronomical refractor will have a 90° non-erecting mirror diagonalThird, a 10x30 finder is not adequate for a scope this size; it should be at least 7x50Fourthly, a total weight of 21.4 kg is too light for this size of scope, suggesting that the mount and tripod are too lightweight to support this size of scopeIn a more general way, any 150mm f/8 achromatic refractor will have severe chromatic aberration - it should be at least f/15 to have acceptable colour correctionI owned a scope like this and found its colour fringing unbearable after a whileI also found it extremely difficult to mount adequately, because of its long heavy tube with a very heavy objective lens at the high endIf you want an achromatic refractor, I'd recommend a 120 mm f/8.3 or f/9.3 insteadIts colour correction is better, and it's much easier to mount.
