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Optical Tube Assemblies
Optical tube assemblies, commonly abbreviated by astronomers as OTAs are simply the tube of the telescope where the optics are internally located. OTAs can be helpful in a situation in which an observer has a compatible mount and doesn't want to buy a whole new telescope with a mount included. Optical Tube Assemblies can come in the form of Maksutov-Cassegrain, Astrographs, Reflectors, Refractors, Schmidt-Cassegrains and many others! With the right mounting connections and range of mount and tripod payload, OTAs are a great choice for changing optical type without changing the mount.
5 Item(s)
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Celestron - EdgeHD 925 Optical Tube Assembly
FOCAL LENGTH - 2350 mm f/10 OPTICAL COATINGS - Starbright XLT OPTICAL DESIGN - Aplanatic Schmidt
is an aplanatic Schmidt telescope designed to produce aberration-free images across a wide visual and photographic field of view. The optical system was designed to reduce more than just off-axis star coma, but also to give an astrograph quality flat focal plane all the way to the edge of the field of view.
... Learn MoreFREE SHIPPINGModel#: 91040-XLT(48 States)
$2,299.00 -
Celestron - EdgeHD 800 Optical Tube Assembly
FOCAL LENGTH - 2032 mm f/10OPTICAL COATINGS - Starbright XLTOPTICAL DESIGN - Aplanatic Schmidt ... Learn More
FREE SHIPPINGModel#: 91030-XLT(48 States)
$1,299.00 -
Celestron - EdgeHD 8 Optical Tube Assembly (CG5)
- 8" EdgeHD Optical Tube Assembly
- Includes dovetail rail compatible with CG5 mount
- Aluminum Optical Tube
- Celestron's premium StarBright XLT coatings
- 2032 mm focal length (f/10)
- 40 mm eyepiece included (51x)
- Visual back allows for use with 1.25" accessories
- 9x50 finderscope to help accurately find objects
- Star diagonal provides more comfortable viewing position when observing objects that are high in the sky
- Mirror Support Knobs hold the mirror in place and reduces image shift during imaging.
- Tube vents with integrated 60 micron mesh filter allowing hot air to be released from behind the primary mirror.
- Fastar Compatible optical tubes are equipped with a removable secondary mirror for fast f/2 ccd imaging
FREE SHIPPINGModel#: 91031-XLT(48 States)
$1,299.00 -
Celestron - EdgeHD 1400 Optical Tube Assembly
FOCAL LENGTH - 3910 mm f/11 OPTICAL COATINGS - Starbright XLT OPTICAL DESIGN - Aplanatic Schmidt ... Learn More
FREE SHIPPINGModel#: 91060-XLT(48 States)
$5,799.00 -
Celestron - EdgeHD 1100 Optical Tube Assembly
FOCAL LENGTH - 2800 mm f/10 OPTICAL COATINGS - Starbright XLT OPTICAL DESIGN - Aplanatic Schmidt ... Learn More
FREE SHIPPINGModel#: 91050-XLT(48 States)
$3,399.00
5 Item(s)
