กระจกกล้องดูดาว GSO Parabolic Primary Mirror 4.5" F/8

Strong, steady and easy to setup absolutely worth the price. Low guiding error even at near payload capacity (4.5kg). Easy polar alignment using fine adjustment knobs. Low payload capacity suitable with small refractors best for traveling. With payload near capacity, weight management is essential because the counterweights included almost can not balance the kit.