iOptron SmartStar Cube-E MC90 90mm f/13.3 Maksutov-Cassegrain GoTo Telescope

iOptron SmartStar Cube-E MC90 90mm f/13.3 Maksutov-Cassegrain GoTo Telescope

iOptron SmartStar Cube-E MC90 90mm f/13.3 Maksutov-Cassegrain GoTo Telescope

B&H # IO8504B MFR # 8504B
iOptron SmartStar Cube-E MC90 90mm f/13.3 Maksutov-Cassegrain GoTo Telescope

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Product Highlights

  • 90mm Maksutov-Cassegrain OTA
  • 1200mm Focal Length, f/13.3 Focal Ratio
  • Internal Focuser and Flip-Mirror System
  • Compact Alt-Az/EQ Motorized GoTo Mount
  • GoTo Nova Controller, 14,000+ Objects
  • Alignment Assistance and Custom Tours
  • Multiple Tracking and Slew Speeds
  • 10 and 25mm Eyepieces
  • 45° Erect-Image Diagonal
  • 1.25" Stainless Steel Tripod with Tray
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iOptron 8504B overview

  • 1Description

An ideal choice for astronomical viewing and astrophotography, the iOptron SmartStar Cube-E MC90 90mm f/13.3 Maksutov-Cassegrain GoTo Telescope is for users who want a compact and powerful observation platform that is able to make detailed views of the Moon and planets with the ability to reach outside our solar system. The Maksutov-Cassegrain design uses a front corrector plate with a convex meniscus lens to correct off-axis aberrations, like comas, and chromatic aberration to produce images with true-color rendition. The nature of the lens results in a smaller secondary mirrorlimiting obstruction and increasing contrast, while eliminating the need for periodic collimation. The Maksutov optical path results in a slower focal ratio and narrower field of view versus a similar Schmidt, but for many the optical benefits are worth it.

The Cube-E Mount is a functional, flexible, motorized, and computer-controlled unit that sports a compact design, measuring a mere 8x5x5" and weighing just 3 pounds. The dual-axis servomotors are built into a small single unit whose unique design eliminates "dead spots," enabling users to point their telescope to any point above the horizon without the risk of blocking the telescope tube at certain points of rotation.

The brain of this observation system is the GoTo Nova 8405 computer controller. This handheld unit features a 14,000+ object database with 256 user-defined objects for your favorite celestial or terrestrial bodies. This fully GoTo-capable unit has multiple alignment procedures that assist in initial setup and automatic tracking for fast-moving near-space objects such as the Moon and planets and slower moving deep-sky objects like nebulae and galaxies.

Optical Tube
  • 90mm aperture
  • f/13.3 focal ratio
  • 1200mm focal length
  • Maksutov-Cassegrain optical design
  • Front convex meniscus lens corrects spherical and chromatic aberrations and comas (off-axis aberrations) across the entire field of view
  • Smaller secondary mirror versus Schmidt-Cassegrains reduces obstructions and increases contrast
  • Multi-coated optics improve light transmission, color rendition, and contrast
  • 1.29 arcsecond resolution
  • Internal flip mirror for dual viewing: Find, center, and focus a target object visually with an eyepiece, then photograph it with a camera without changing gear
  • Internal focusing system
  • Vixen-style dovetail plate
8405 GoTo Nova Controller
  • Easy-to-navigate menu-driven interface
  • Easy One-star or Two-star alignment
  • 14,000+ object database, plus 256 user-defined objects
  • Watch list: Create a virtual custom tour by choosing objects to see and system will automatically GoTo each object in the list after successful alignment
  • Slew speeds: 2x, 8x, 64x, 256x, Max (4°/sec)
  • Average GoTo accuracy: 1 arcminute
  • 4-line, 21-character LCD screen with backlit LED buttons
  • Red LED reading light on back to see eyepieces or filters without affecting night-adjusted vision
  • Database:
  • Sun, Moon, planets
  • Named deep-sky objects
  • Messier catalog
  • Comets and asteroids
  • Named stars, double stars, SAO star catalog
  • Major constellations
  • 256 user-defined objects, including terrestrial locations
Cube-E Mount
  • 7-pound payload capacity
  • Motorized alt-az mount
  • Compact design
  • 5-gear dual-axis DC servomotor
  • Optical encoders monitor motors to improve tracking accuracy
  • Acetal worm wheel, nylon 6 worm gear
  • Four steel ball bearings for smooth, low-vibration tracking
  • Zero "dead spots" that block an OTA at certain points of rotation
  • Vixen-style dovetail saddle to mount compatible OTAs
  • Runs on included 100-240 VAC power adapter or eight user-supplied AA batteries
  • Operating temperature: 32 to 104°F
  • Integrated bubble level
  • Weight: 3.1 pounds
Included Accessories
  • Visual back:
  • 1.25" to accept common eyepieces and accessories
  • Eyepieces:
  • Accept most 1.25" astronomical filters
  • 25mm focal length yields 48x
  • 10mm focal length produces 120x
  • Diagonal:
  • 1.25" snout and holder
  • 45° angle puts head in comfortable viewing position
  • Erecting prism corrects image for easy use on land
  • Finderscope:
  • Red dot produces a simple aiming point for faster alignment and easier manual star-hopping navigation
  • Wide field of view makes finding alignment stars simple
  • Tripod:
  • Stainless steel legs
  • 1.25" (2.5cm) leg diameter
  • Accessory tray to hold eyepieces, filters, etc.
  • Spiked feet for sure footing on soft ground
  • Maximum height: 37.75" (95.9cm)
In the Box
iOptron SmartStar Cube-E MC90 90mm f/13.3 Maksutov-Cassegrain GoTo Telescope
  • Cube-E GoTo Alt-Az Mount (Astro Blue)
  • 10mm Eyepiece
  • 25mm Eyepiece
  • Red Dot Finderscope
  • 45° Erecting Diagonal
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description

    iOptron 8504B specs

    Optical Design Maksutov-Cassegrain
    Aperture 90mm
    Focal Length 1200mm
    Focal Ratio f/13.3
    Eyepiece Barrel Diameter 1.25"
    Diagonal 45° erect-image
    Finderscope Red dot
    Tripod 1.25" stainless steel
    Mount Type Motorized alt-az
    GoTo System GoTo Nova hand controller
    Power Source 8 x AA batteries
    Optical Tube Dimensions Not specified by manufacturer
    Weight OTA: 3.5 lb / 1.6 kg
    Mount: 3.1 lb / 1.4 kg

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