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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
Baader Takahashi Sky90 Adapter - M64x0.75(M)/M68x1(F)

Baader Takahashi Sky90 Adapter - M64x0.75(M)/M68x1(F)

by Baader Planetarium
SKU BAA-2458231
$86.00 - $86.00
$86.00
$86.00 - $86.00
$86.00
Price Match Policy!
  • Adapts the Takahashi Sky90's M64x0.75 male thread
  • Provides a robust M68x1 female thread for accessories
  • Enables secure, direct-thread connection for imaging equipment
  • Eliminates potential flexure from 2-inch compression fittings
  • Integrates the Sky90 telescope into the Baader M68 accessory system
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • Baader Takahashi Sky90 Adapter - M64x0.75(M)/M68x1(F)

    The Baader Takahashi Sky90 Adapter directly converts the telescope's native M64x0.75 male thread to the versatile Baader M68x1 female thread. This critical conversion allows for a direct, rigid, and flexure-free attachment of the entire Baader M68 accessory ecosystem, replacing standard 2-inch compression fittings for demanding astrophotography and spectroscopy applications.

    From M64x0.75 to M68x1: A Zero-Flexure Connection for the Sky90

    For professional-level imaging, any amount of mechanical flexure in the optical train can render results unusable. This adapter addresses the primary source of instability—the slip-in eyepiece holder—by creating a large-diameter threaded connection. By mating the Takahashi Sky90's M64x0.75 focuser thread directly to the M68x1 system, you eliminate the risk of tilt and sag common with heavy cameras, filter wheels, or long accessories like telecentric systems.

    Unlocking the Baader M68 System for Your Takahashi Sky90

    This adapter is the key to integrating your Takahashi Sky90 with Baader's extensive M68 optical system. It opens up compatibility with components like the M68 Tele-Compendium for stray light control, Fluorite Flatfield Converters (FFC), and various extension tubes. The result is a mechanically robust imaging train where every component is securely threaded, ensuring perfect axial alignment from the focuser to the camera sensor.

  • What is the primary purpose of the Baader Takahashi Sky90 Adapter?

    Its sole purpose is to convert the specific M64x0.75 male thread on the Takahashi Sky90 focuser to the widely used Baader M68x1 female thread. This allows you to securely attach Baader's M68 series of photographic and visual accessories directly to the telescope.

    Why is this threaded Baader adapter better than using a standard 2" adapter on my Sky90?

    A standard 2" adapter relies on thumbscrews and a compression ring to hold heavy equipment, which can lead to tilt and flexure. This M64/M68 adapter creates a rigid, threaded metal-on-metal connection that cannot tilt or sag, which is critical for maintaining optical alignment during long-exposure astrophotography.

    What specific accessories can I attach to my Takahashi Sky90 using this adapter?

    This adapter opens up the entire Baader M68 ecosystem. This includes, but is not limited to:

    • Baader M68 Tele-Compendium System
    • Baader M68 Extension Tubes for precise spacing
    • Adapters to connect to Baader's Fluorite Flatfield Converter (FFC) or Telecentric systems
    • The Baader M68 Ultrashort eyepiece clamp for a secure visual back

    I want to use a Baader Telecentric System for H-alpha solar imaging with my Sky90. Is this the adapter I need?

    Yes, this is the essential starting point. This adapter provides the foundational M68 thread on your Sky90 focuser. From there, you will use other Baader M68 components to connect your Telecentric System and H-alpha filter, creating a completely rigid and safe solar imaging train.

    How does this adapter help prevent image shift when using a heavy camera on my Takahashi Sky90?

    Image shift from focuser sag occurs when the weight of a camera causes the drawtube or accessory holder to tilt slightly. By threading your camera and accessories directly to the focuser via this M64 to M68 adapter, you create a single, solid unit. This prevents any possibility of sagging or shifting, ensuring your target remains perfectly centered on the sensor throughout the exposure.

    Does this Baader adapter work with other telescopes or thread systems?

    No. This adapter is purpose-built specifically for the Takahashi Sky90 telescope, which uses an M64x0.75 thread. It is designed to connect only to accessories that use the Baader M68x1 thread standard and is not compatible with other systems like M42, M48, or SCT threads without additional adapters.

  • Telescope Side Connection M64x0.75 Male Thread
    Accessory Side Connection M68x1 Female Thread
    Compatible Telescope Takahashi Sky90
    Accessory System Baader Planetarium M68
    Net weight (kg) 0.03
    Compatible Brands Baader Planetarium, Takahashi, Zeiss
    Inner Diameter / Clear Aperture (mm) 59
    Outer Diameter 76
    Type of Adapter Expanding Adapter
    Optical length (mm) 8.5

    • Baader Takahashi Sky90 Adapter (M64/M68)

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  • Baader Planetarium Warranty