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Meade ETX 90 optical Telescope Tube Spotting Scope Replacement Made in the USA!

Current Price:194.95 USD
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Meade ETX-90 Replacement Optical Tube 

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 Used Meade Optical Tube with Multi - Coated Optics.  Optically and mechanically tested, Optics Very Excellent!!  sharp and clear.
  This can be attached to one of the older ETX90 Fork mounts.  Also it could make a fantastic spotting scope as it has 1/4-20 threaded holes and a mounting plate to attach it to any sturdy photo tripod. It comes with a deluxe 6x30 right angle upright image Finderscope & Caps. This comes with two quality plossl eyepieces, 40mm wide angle plossl and 16mm plossl.  Also it includes a quality metal shorty 2x barlow.  Very Gently used very minor scuffs on finish.

Here are the specs:

Optical Design Maksutov-Cassegrain catadioptric
Primary Mirror Diameter 96mm (3.78")
Clear Aperture 90mm (3.5")
Focal Length 1250mm
Focal Ratio (photographic speed) f/1 3.8
Near Focus (approx.) 11.5 ft. (3.5m)
Resolving Power (arc sees.) 1.3

Limiting Visual Steller Magnitude (approx.) 11.7
Image Scale 1.16┬░/inch
Maximum Practical Visual Power 325X
Optical Tube Dimensions (dia. x length) 4. 1" x 11" (1 0.4cm x 27.9cm)
Secondary Mirror Obstruction (dia.; %) 1.1" (27.9mm); 9.6%
Materials: Tube body Aluminum
   Mounting High-impact ABS, steel reinforced
   Primary Mirror Pyrex┬« glass
   Correcting Lens BK7 optical glass, Grade-A

This is the optical tube only.  It comes with the optics, cleaned, tested and collimated, the front and back metal dustcaps & 6x30 Deluxe right angle Finderscope with dovetail bracket.  40MM, 16MM plossl Eyepieces with a 2x barlow are included.   If you need a High Quality 90mm maksutov optical tube kit at a reasonable price get this one!


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