The TS APO80Q is an 80mm refractor with a focal length of 544mm. In terms of optical construction, it is an apochromatic triplet with an additional two-element field flatness corrector (quintuplet, 5-element system), dedicated to advanced astrophotography of deep sky objects in wide frames and visual observations of planets and the moon. • lens: three-lens APO with FPL-53 glass
• Perfect color correction appropriate for apochromatic construction
• built-in flattener (allows to obtain a flat field even for large CCD matrices)
• 2 inch high-strength cut, teflon washer bearing, millimeter graduation
• system of internal diaphragms that do not generate vignetting also in full-format cameras
• CNC clamps included • optical system: apochromatic triplet with FPL53 with built-in field flatness corrector (quintuplet)
• Objective diameter: 80 mm
• focal length: 544 mm
• lighted: f / 6.8
• maximum usable magnification: 240x
• minimum useful magnification: 11.4x
• 2.5 "eyepiece lift with 2" outlet, lifting capacity up to 5 kg, 360 ° rotatable
• visual stellar range: 12th magnitude
• Diameter of the circle of full illumination and correction: 45 mm
• resolving power: 1.75 "
• length: 375 mm (retracted urinal, 90 mm long)
• weight: 3.5 kg (with clamps) Moon planets star clusters nebulae landscapes 2 years
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