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Home / Products / Astronomy Focuser / J010 Focusing Seat Double Speed Gear Rot
J010 Focusing Seat Double Speed Gear Rotation for Astronomy

J010 Focusing Seat Double Speed Gear Rotation for Astronomy

The J010 Focusing Seat Double Speed Gear Rotation is a manual focusing mechanism for astronomical telescopes, designed for precise control during celestial observation. It features a 1:10 fine adjustment ratio, a 2'' (1.25'' convertible) eyepiece interface, and a φ74MM dovetail host interface. The focusing stroke ranges from 0 to 90 mm with all-metal construction for durability and stability under extended use.

  • 1:10 double speed gear rotation enables fine focusing adjustments without excessive hand movement
  • 90 mm focusing stroke supports a wide range of eyepiece and accessory combinations
  • 2'' (1.25'' convertible) eyepiece interface allows compatibility with standard astronomical eyepieces
  • φ74MM dovetail host interface ensures secure mounting on standard telescope mounting systems
  • All-metal construction provides rigidity and long-term reliability under outdoor conditions
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Technical features

  • Focusing method: manual with 1:10 fine adjustment gear ratio
  • Focusing stroke: 0–90 mm
  • Eyepiece interface: 2'' (1.25'' convertible)
  • Host interface: φ74MM dovetail
  • Material: All metal
  • Focusing seat design: toothed bull anti-focusing type

Who it is for

  • Amateur and professional astronomers using refractor or reflector telescopes
  • Importers sourcing precision focusing accessories for telescope kits
  • Distributors building a catalog of reliable astronomy accessories for observatories and educational institutions

Specifications

ModelJ010
Focusing MethodManual with 1:10 fine adjustment
Focusing Stroke0–90 mm
Eyepiece Interface2'' (1.25'' convertible)
Host Interfaceφ74MM dovetail
MaterialAll metal
Gear Ratio1:10

Use guide

  • Mount the focusing seat onto a telescope with a φ74MM dovetail interface
  • Attach a 2'' (or 1.25'' via adapter) eyepiece to the focusing seat
  • Use the double speed gear to make coarse adjustments first, then switch to fine adjustment for precise focus
  • Ensure the gear is fully engaged and the seat is securely fastened during use

FAQ

What is the gear ratio of the focusing seat?
1:10, providing fine adjustment for precise focus control.
Can I use a 1.25'' eyepiece with this focusing seat?
Yes, the 2'' interface is convertible to 1.25'' with an adapter.
What is the maximum focusing stroke?
90 mm, allowing full adjustment across a wide range of eyepieces and accessories.
Is the focusing seat compatible with all telescopes?
It fits telescopes with a φ74MM dovetail interface; verify mounting compatibility before purchase.
What material is used in construction?
All metal, ensuring durability and resistance to wear during extended use.

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