Choose Combo Set or Individual Items (OTA OR Zenith) for Your Needs

Important Shipping Notice (Please Read Before Buying!)

Available Individually or as a Combo: This listing offers both individual and combo purchase options. If you choose the individual item, you will receive one OTA Optical Tube or one Zenith Mirror  . If you select the combo, you will receive two things( OTA and  Zenith Mirror) 

Separate Shipments: Due to inventory locations, if you purchase the combo, the two eyepieces will be shipped in two separate packages. Please keep an eye out for both deliveries.

Please Note: If you have concerns about receiving separate shipments, please consider your purchase carefully or choose to buy the items individually. Thank you for your understanding!

 Discover the Universe with Precision Optics 

Start your astronomical journey with this powerful 90mm refractor optical tube assembly (OTA). Paired with a high-reflection zenith mirror, this combo delivers stunning, clear views of the cosmos, from the Moon's craters to Saturn's rings.

 PLEASE SELECT YOUR OPTION:

Option 1: [Combo Deal] OTA + Zenith Mirror (Best Value & Ready to Use!)

• The perfect starter kit. Includes everything you need to begin observing: the telescope optical tube and the essential zenith mirror.

Option 2: OTA Optical Tube Assembly Only (For Replacements or Upgrades)

• Ideal if you already have a zenith mirror and other accessories from an existing telescope setup.

Option 3: 1.25" Dielectric Zenith Mirror Only (For Performance Upgrade)

• Replace your basic zenith prism to significantly enhance image brightness and contrast on any 1.25" telescope.

 DETAILED SPECIFICATIONS 

For the OTA Optical Tube Assembly:

• Brand: SKYOPTIKST

• Optical Design: Refractor, Double-Separation (Achromatic)

• Aperture: 90mm

• Focal Length: 900mm (F/10)

• Optical Coating: Full Multi-Layer Broadband Green Film

• Finder Scope: 5x20 Fully Correct Image Finderscope

• Focuser Interface: 1.25 inch (31.75mm)

• Net Weight: Approximately 1.70 kg

• Included Items: 1 x OTA, 1 x Barrel Clamp, 1 x 5x20 Finderscope

For the Dielectric Zenith Mirror:

• Interface Size: 1.25 inch

• Prism Type: 90° Zenith (Erect Image)

• Reflective Coating: Dielectric Coating

• Reflectivity: >99%

• Body Material: Aluminum Alloy & Stainless Steel

• Net Weight: 120g

• Included Items: 1 x Zenith Mirror, 2 x Dust Caps

Key Features Explained

• 90mm Large Aperture: Gathers more light for brighter and clearer images of celestial objects.

• Dielectric Zenith Mirror: With 99% reflectivity, it is superior to standard aluminum mirrors, providing brighter and higher contrast views. It is a crucial upgrade for serious observation.

• Fully Multi-Coated Lenses: Reduces light loss and minimizes glare for sharp, high-contrast images.

• 5x20 Finderscope: Helps you easily locate and center objects in the night sky before viewing with the main scope.

• Sturdy Metal Construction: Durable and designed to last, protecting your investment.

⚠️ Important Note:

• This listing is for the optical tube and/or zenith mirror only. It does NOT include a tripod, mount, or eyepieces (unless specified in a separate combo).

• Please carefully select your desired option from the menu above.