Tag Archives: Optical Tubes

The lightweight Vixen VMC95L is a 95 mm (3.7 inch) aperture modified Cassegrain f/11 optical tube assembly. With a curved vane Secondary Mirror Spider to reduce diffraction effects this small telescope performs like its larger cousins the VMC110L and VMC200L. The Vixen VMC95L Modified Cassegrain telescope features sharp optics combined with portability. The built-in focuser … Continue reading

When The ED81S combines better color correction from the new ED glass and brighter images from its fast f/7.7 focal ratio. This will satisfy the most demanding visual astronomer or astro-photographer. The special ED glass produces clear and high contrast viewing virtually free of false color. The design uses newly developed environmentally friendly glass technolgy. … Continue reading

The Vixen VMC110L a 110 mm (4.33 inch) aperture modified Cassegrain f/9.4 optical tube. Its features include a curved vane secondary mirror spider to reduce diffraction effects and a correcting meniscus lens just ahead of the secondary mirror as its larger cousins the VMC200L and VMC260L incorporate.The Vixen VMC110L is a 110 mm (4.33 inch) … Continue reading

This lightweight 5″” reflector is a favorite of many new astronomers because it features remarkable light gathering with sharp images for its price and size. With a standard 20 mm PlQssl more than the entire moon fills the eyepiece. You””ll view innumerable star clusters and dark clouds not to mention nebulas and galaxies. Add a … Continue reading

The A80Mf is an Achromatic Refractor with 80 mm (3.2) of aperture. Its focal length is 910 mm (3 ft.) with an f ratio of 11.4. Its light gathering is 130 times better than the human eye and has a maximum (realistic) power of 144x. It weighs about 5.5 lbs. The A80Mf OTA (Optical Tube … Continue reading

Sliding metal dew shield Screw-on metal lens cover Tube ring-mount with mounting threads 2 Everbrite (99% 1/10-wave) mirror diagonal with brass clamp ring Focusmate dual-speed focuser 10:1 1¼ eyepiece adapter with with brass clamp ring 20mm Plössl eyepiece Soft carry case The Tele Vue-85′s mix of aperture and small physical size makes it a wonderful … Continue reading

Sliding metal dew shield Screw-on metal lens cover Tube ring-mount with mounting threads Telescope Balance Aid (APB-1008) 2 Everbrite (99% 1/10-wave) mirror diagonal with brass clamp ring Focusmate dual-speed focuser 10:1 1¼ eyepiece adapter with with brass clamp ring 20mm Plössl eyepiece Soft carry case The expansive 5.5° rich-field drizzles your view with delicate jewel-like … Continue reading

Great for on-the-go targets the 2-stage 1¼”” focuser employs a quick-focus drawtube and fine-focus helical thread. Focuser accepts either 45º erector 60º and 90º diagonals to suit any terrestrial or astronomical target. Adjustable dovetail balancing bar fits all camera tripods Tele Vue mounts and mounting bracket for SCTs (see Accessories). Exquisitely machined and anodized all-metal … Continue reading

The Tele Vue-NP101(Nagler/Petzval) represents our closest realization yet of the “”ideal”” multi-purpose photo/visual telescope. Its snap-to-focus sharpness across even the widest true fields and rich planetary contrast will take your breath away. Its quality easy set-up and airline portability beckons your use. Over 20 years ago we reinterpreted the incredible design flexibility of the Petzval … Continue reading

For 30 years Tele Vue has pushed the boundaries of APO refractors as well as eyepieces to the recognized pinnacle of performance. We were gratified but not surprised that Backyard Astronomer’s Guide said of the NP101: optics don’t get any better than this. No wonder Sky and Telescope rated the NP101 tops and selected it … Continue reading