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Telescope Optical Tube Assemblies

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Coronado SolarMax III 70 Double Stack Solar Scope with BF10
This high quality double stacked 70mm solar telescope features a 400mm focal length, f/5.7 focal ratio, and 10mm blocking filter. Includes mounting rings, CEMAX 18mm eyepiece, Sol Ranger solar finder and black and silver aluminum hard carry case.
$3,799.99
3 easy payments of $1,266.66
With payment plan
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Coronado SolarMax III 70 Solar Scope with BF15
This high quality 70mm solar telescope features a 400mm focal length, f/5.7 focal ratio, and larger 15mm blocking filter. Includes mounting rings, CEMAX 18mm eyepiece, Sol Ranger solar finder and black and silver aluminum hard carry case.
$3,199.99
3 easy payments of $1,066.66
With payment plan
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Coronado SolarMax III 90 Solar Scope with BF30
90mm f/8.9 refractor equipped with 90mm H-alpha filters. Available in single and double stack bandpasses, and either 15mm or 30mm blocking filters. Two-speed rack and pinion focuser which creates a more user-friendly interaction with the telescope.
$7,299.99
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More About Telescope Optical Tube Assemblies
Orion Telescopes sells a variety of telescope optical tube assemblies (OTAs) for those who already own a suitable telescope mount or camera tripod. Many of these telescope optical tubes are offered without accessories to allow you to outfit them with telescope accessories you may already own. Adding a new telescope optical tube assembly is a great way to expand your observing or astrophotography repertoire!

Please Note:
Any discounts and/or promotional offers apply only to products listed on their respective pages. Prices valid only while supplies last and are limited to stock on hand.

Products on sale or subject to promotional offers are limited to two units per customer. Large volume orders are subject to special order policies — contact our Customer Service Department for additional details.

Pricing and/or promotions are subject to change without notice.