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Jacob's Photo & Digital
9 Mokoia Road
Birkenhead
Auckland 0626

Orion Orion 8" f/8 Ritchey-Chretien Astrograph Telescope

Price: $2,259.00

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Jacobs Photo and Digital

9 Mokoia Road

Birkenhead

Auckland 0626

New Zealand

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Capture exceptional images of night sky wonders with the Orion 8" Ritchey-ChrǸtien Astrograph. This true astrograph is optimized for astrophotographic use with APS-C and 35mm CCD cameras and DSLRs. With several key advantages over Schmidt-Cassegrains and other imaging telescopes, this 8" Ritchey-ChrǸtien, or "RC", is a remarkable telescope that delivers amazing, flat-field images which are virtually coma-free to the edge of the fully illuminated field.

This 8" (203mm) aperture RC combines the highly regarded Ritchey-ChrǸtien optical design with excellent light-gathering capability, high-end features, and durable construction to provide astrophotographers with an exceptional instrument at an amazing value. Unlike conventional Newtonian reflector and Schmidt-Cassegrain designs that are susceptible to coma away from the center of the field, the Orion 8" Ritchey-ChrǸtien Astrograph optical tube utilizes hyperbolic primary and secondary mirrors, made of low-expansion quartz glass, to achieve wonderfully flat-field images that are virtually devoid of coma with pinpoint star clarity. Plus, since there are no lenses in an RC telescope, captured images are delightfully free of chromatic aberrations for true-color performance.

The enameled steel Orion 8" Ritchey-ChrǸtien optical tube is fortified with 9 internal, computer-positioned knife-edge light baffles; and both the primary mirror tube and secondary mirror light shield are highly baffled to ensure maximum image contrast for bright images rich in detail. Unlike Schmidt-Cassegrains, the primary mirror of the 8" Ritchey-ChrǸtien telescope is fixed in-place to eliminate annoying "image shift" that can wreak havoc during imaging sessions. Enhanced aluminum coatings on both the primary and secondary mirrors of the 8" Ritchey-ChrǸtien Astrograph provide 96% reflectivity with a protective quartz overcoat. Designed with collimation in mind, the secondary mirror of the 8" RC is precisely center-marked to facilitate collimation adjustments should they become necessary.

The Orion 8" RC Astrograph features a machined, dual-speed (10:1) Crayford focuser equipped with a sturdy linear-bearing mechanism for enhanced rigidity and stable support of heavy astrophotography equipment. The rock-solid focuser provides 140.7mm of backfocus travel (238.1mm from the rear cell) to easily accommodate imaging accessory trains, and an engraved millimeter scale on the drawtube enables easy focus point repeatability. One 2" and two 1" machined focus extension rings are included so you can adjust focus position for various imaging cameras and accessories. Two dovetail finder scope bases positioned on either side of the focuser allows easy installation of optional Mini Guide Scopes and aiming devices (sold separately). The 8" Ritchey-ChrǸtien tips the scales at 18.5 lbs. and is equipped with a wide "Losmandy-style" dovetail bar along its underside for easy attachment to large equatorial mounts. A unique, Orion-exclusive slotted narrow dovetail bar along the top of the telescope allows easy attachment of optional guide scopes and other imaging accessories.

*Special Order item, please contact us for delivery time*

Feel free to ask a question about Orion Orion 8" f/8 Ritchey-Chretien Astrograph Telescope below or call us on +64 (9) 480-5903

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Pickups and Delivery

In-store pickup

We don't have this item in our store right now, please allow 2-3 working days for it to be transferred to our retail store.

If you come to pick up your order please bring photo ID, if someone else is picking it up on your behalf please leave a note on your order or email us prior to pickup.

Delivery estimates

For orders within the North Island allow 2 working days, for the South Island allow 3 working days. Rural deliveries and extra-large items may take several additional days.

Shipping costs

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Delivery of oversize items

Oversize items such as very large telescopes may only be available via pickup from a depot or a business address. For a list of available depots, click here

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