Vixen Telescope SD103SII Optical Tube Assembly

Vixen Telescope SD103SII Optical Tube Assembly

Name: Vixen Telescope SD103SII Optical Tube Assembly
Brand: Vixen
SKU: ES26086
Price: 2206.25 USD
Availability: InStock

$ 2,206.25

Only 7 units left

Pickup available at 1010 S. 48th Street

Usually ready in 4 hours

The Vixen SD103SII Optical Tube Assembly is a high-performance 103mm apochromatic refractor built for serious visual observation and astrophotography. It improves upon the original SD103S with a new ring-shaped spacer system that delivers cleaner, more beautiful star images. Using premium FPL53 SD glass, it virtually eliminates chromatic aberration and supports full-frame DSLR and CMOS camera imaging when paired with optional reducers or flatteners. Versatile and precise, this optical tube is ideal for everything from planetary viewing to deep-sky imaging.

SKU: ES26086

Shipping & Returns

Free shipping on orders shipped within the continental United States. Special‑order items are excluded. USPS orders may take an additional business day for processing. Learn more.

Returns must be submitted within 30 days from the date of purchase for a refund or replacement. The item must be unused, in its original condition and packaging. Learn more.

Product Warranty

Vixen warranties its products to be free from initial defects in materials and workmanship for a specified period based on part type:

Vixen Electronic Parts: Limited One Year Warranty

Vixen Mechanical Parts: Limited Two Year Warranty

Click Here to read more

Warnings

⚠️ WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov

⚠️ WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Standout Features

Sharper Star Images with Improved Spacer Design

A redesigned ring-shaped lens spacer replaces the previous foil fragments, reducing diffraction artifacts for cleaner, uninterrupted star images — ideal for astrophotography.

Super ED Glass for Exceptional Clarity

Built with FPL53 SD glass, this optical tube significantly suppresses chromatic aberration across the visible spectrum, producing razor-sharp, color-accurate images even on high-contrast targets like bright stars or planets.

Ready for Visuals & Astrophotography

With a balanced 795mm focal length and flip mirror diagonal, you can switch quickly between eyepiece viewing and camera shooting. The SD103SII supports everything from lunar observation to deep-sky photography.

Compatible with Full-Frame Imaging Systems

When combined with the optional SD Flattener HD or SD Reducer HD, this scope provides a 44mm image circle optimized for full-frame DSLR or CMOS sensors — perfect for capturing wide, high-resolution astrophotos.

Product Specifications

Objective: 103mm / SD apochromat, multi-coated SD(Super ED)glass lenses
Focal Length: 795mm(F7.7)
Resolving Power: 1.13 arc seconds, 11.8
Light gathering power: 217x unaided eye
Focusing mechanism: Rack-and-pinion, with lock knob
Adapter thread / Visual back: 60mm and 42mm for T-ring / 50.8mm and 31.7mm push fit with flip mirror diagonal
Finder scope: 7x50mm Finder II, dark field illumination, 7 degrees field of view
Accessories: Tube rings, dovetail attachment plate, metal carry handle
Dimensions / weight: 115mm O.D. x 810mm long, 5.5kg (Net 3.6kg)

Vixen Telescope SD103SII Optical Tube Assembly

Standout Features

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