Telescopes

11 Item(s)
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  1. ASA - 8" f/3.8 8N Newtonian Astrograph OTA with Accessories

    SKU: ASA-ASA8NO3

    This item is special order. Delivery times will vary. Place your order today and your card will not be charged until the item ships.

    ASA, also known as Astro Systeme Austria has developed the ASA 8" F/3.8 model-8N Astrograph Optical Tube Assembly (OTA) which is an excellent starting point for the amateur astronomers who strive to do astro-imaging and wish to configure a custom system. The ASA OTA is a great example of a fast and wide field optical imaging system great for high quality imaging and also capable of working at multiple focal lengths.

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  • ASA - 500mm f/8 Ritchey-Chretien Telescope - Open Truss Tube

    SKU: ASA-ASA500RC

    This item is special order. Delivery times will vary. Place your order today and your card will not be charged until the item ships.

    ASA has developed a fantastic line of high quality Ritchey-Chretien Telescopes perfectly geared for extensive research or high level astro-imaging. The ASA 500mm f/8 is a fast high quality optical system that uses a hyperbolic primary mirror to form the image behind the cell and uses the secondary mirror for focusing by moving it along its axis via a computerized electrical drive system. These optical systems are similar to Cassegrains, but has improvements in the field correction even without a field-flattener lens being used.

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  • ASA - 8" 8H Astrograph Hyperbolic Primary with 3" Focuser - OTA Only

    SKU: ASA-ASA8HOK3ZK

    This item is special order. Delivery times will vary. Place your order today and your card will not be charged until the item ships.

    The ASA 8" 8H Astrograph Hyperbolic Primary with 3" Focuser uses a hyperbolic primary mirror. With high quality and low expansion Suprax primary and secondary mirrors (P/V <1>97% reflectivity) and with their own interferogram, the ASA astrographs are an astrophotographers dream! To make collimation easier for the user, ASA has implemented a centered triangle reference mark on the primary mirror.

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