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Telescope Optical Tube Assemblies

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Meade 8" f/10 LX85 ACF Optical Tube Assembly
Features coma-free pinpoint star images and flatter fields while reducing astigmatism and eliminating diffraction spikes. 8" aperture, 2032mm focal length (f/10). Includes a Vixen dovetail bar to attach to any compatible Vixen style mount.
$1,599.99
3 easy payments of $533.33
With payment plan
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Meade 6" f/4.1 LX85 Reflector Optical Tube Assembly
The Meade 6" f/4.1 astrograph reflector optical tube works equally well visually or for astrophotography. F/4.1 means very short exposures, and a long back focus means compatibility with a variety of camera gear. Weighs just 12.7 lbs.
$599.99
3 easy payments of $200.00
With payment plan
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Meade 8" f/4 LX85 Reflector Optical Tube Assembly
The Meade 8" f/4 LX85 Astrograph Reflector is a workhorse for both visual and astrophotography pursuits. The BK7 optical glass at f/4 allows for quite short exposures, and the 2" focuser works equally well with a camera or any 2" or 1.25" eyepiece.
$799.99
3 easy payments of $266.66
With payment plan
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Meade 10" f/8 LX850 ACF Optical Tube Assembly
10" OTA has a fast f/8 optical system with high-contrast, with pinpoint imaging to the edge of the field. Features an internal zero image shift Crayford-style focusing system with a two-speed 7:1 reduction control.
$3,299.99
3 easy payments of $1,100.00
With payment plan
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Meade 12" f/8 LX850 ACF Optical Tube Assembly
12" OTA has a fast f/8 optical system with high-contrast, with pinpoint imaging to the edge of the field. Features an internal zero image shift Crayford-style focusing system with a two-speed 7:1 reduction control.
$4,599.99
3 easy payments of $1,533.33
With payment plan
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Meade 16" f/8 LX600 ACF Optical Tube Assembly
16" OTA has a fast f/8 optical system with high-contrast, with pinpoint imaging to the edge of the field. Features an internal zero image shift Crayford-style focusing system with a two-speed 7:1 reduction control.
$10,999.99
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Meade 8" f/10 LX200 ACF Optical Tube Assembly
ACF optics achieve aplanatic performance, with a flatter field, reduced astigmatism and eliminated diffractions spikes. Has UHTC coatings, Losmandy-style dovetail, Dust Cover and more!
$1,749.99
3 easy payments of $583.33
With payment plan
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Meade 10" f/10 LX200 ACF Optical Tube Assembly
ACF optics achieve aplanatic performance, with a flatter field, reduced astigmatism and eliminated diffractions spikes. Has UHTC coatings, Losmandy-style dovetail, Dust Cover and more!
$2,649.99
3 easy payments of $883.33
With payment plan
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Meade 12" f/10 LX200 ACF Optical Tube Assembly
ACF optics achieve aplanatic performance, with a flatter field, reduced astigmatism and eliminated diffractions spikes. Has UHTC coatings, Losmandy-style dovetail, Dust Cover and more!
$4,099.99
3 easy payments of $1,366.66
With payment plan
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Meade 14" f/10 LX200 ACF Optical Tube Assembly
ACF optics achieve aplanatic performance, with a flatter field, reduced astigmatism and eliminated diffractions spikes. Has UHTC coatings, Losmandy-style dovetail, Dust Cover and more!
$6,399.99
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Meade 16" f/10 LX200 ACF Optical Tube Assembly
ACF optics achieve aplanatic performance, with a flatter field, reduced astigmatism and eliminated diffractions spikes. Has UHTC coatings, Losmandy-style dovetail, Dust Cover and more!
$10,299.99
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Coronado SolarMax II 90 RichView Solar Telescope w/BF15
SolarMax II 90mm Solar Telescope with RichView system. Includes 15mm Blocking Filter. The Coronado SolarMax 90 series telescopes are the largest H-alpha (Ha) telescope ever to be mass-produced by Coronado. It features a sub .7 angstrom bandpass.
Was 
$4,449.99
Now 
$2,999.99
3 easy payments of $1,000.00
With payment plan
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Coronado SolarMax II 90 Double Stack Solar Telescope w/BF15
The incredible Coronado SolarMax 90 series telescopes are the largest H-alpha (Ha) telescope ever to be mass-produced by Coronado and are now available with the patented RichView tuning system.
Was 
$6,499.99
Now 
$4,999.99
3 easy payments of $1,666.66
With payment plan
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Coronado Personal Solar Telescope
4.8 / 5.0
For safe viewing of the sun, the Coronado Personal Solar Telescope is perfect. This H-alpha scope reveals dramatic prominences, flares, and other solar phenomena. Very light weight, this scope only requires a small tripod for support.
$899.99
3 easy payments of $300.00
With payment plan
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Coronado 0.5 Angstrom Personal Solar Telescope
5.0 / 5.0
This 40mm diameter highly portable dedicated solar telescope features a superior 0.5 Angstrom bandpass for increased surface detail. Study of the solar disk is now within the reach of the amateur astronomer.
$1,649.99
3 easy payments of $550.00
With payment plan
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Coronado SolarMax III 70 Solar Scope with BF10
This high quality 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.
$2,999.99
3 easy payments of $1,000.00
With payment plan
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Coronado SolarMax III 70 Double Stack Solar Scope with BF15
This flagship double stacked 70mm solar telescope features a 400mm focal length, f/5.7 focal ratio, and 15mm blocking filter. Includes mounting rings, CEMAX 18mm eyepiece, Sol Ranger solar finder and black and silver aluminum hard carry case.
$3,999.99
3 easy payments of $1,333.33
With payment plan
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Coronado SolarMax III 90 Solar Scope with BF15
This high quality 90mm solar telescope features an 800mm focal length, f/8.9 focal ratio, and large 15mm blocking filter. Includes mounting rings, CEMAX 25mm, 18mm, and 12mm eyepiece, Sol Ranger solar finder and black and aluminum hard carry case.
$5,499.99
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Coronado SolarMax III 90 Double Stack Solar Scope with BF15
90mm telescope with enhanced rack and pinion focuser and large external etalons is the perfect way to view the Sun! Includes 12mm, 18mm, 25mm eyepieces, CEMAX 2x barlow, Sol Ranger finder, Vixen-style dovetail mounting rail, and aluminum carry case.
$7,799.99
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Coronado SolarMax III 90 Double Stack Solar Scope with BF30
This high quality double stacked 90mm solar telescope features an 800mm focal length and large 30mm blocking filter. Includes rings, star diagonal, CEMAX 25mm, 18mm, and 12mm eyepiece, Sol Ranger solar finder and black and aluminum carry case.
$9,499.99
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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.