J008 2'' Dual Speed 360° Rotating Focusing Seat for Telescope

Key Benefits

• 70mm focusing stroke enables deep focus adjustment across a wide range of eyepieces and optical paths
• 1:10 fine adjustment allows precise focus tuning without over-shooting
• 360° rotation permits continuous adjustment of eyepiece orientation for ergonomic viewing
• M96.5x1 host interface ensures compatibility with standard telescope mounting threads
• 2'' eyepiece interface with 1.25'' conversion capability supports multiple eyepiece types
• All-metal construction provides rigidity and long-term durability under repeated use

Application Scenarios

• Adjusting focus on a large refractor or reflector telescope during planetary observation
• Aligning the eyepiece angle for comfortable viewing at high elevation or low-angle positions
• Performing long-exposure astrophotography with stable focus retention
• Switching between 2'' and 1.25'' eyepieces without changing the focuser
• Using the fine adjustment to lock focus during tracking of fast-moving celestial objects

Who It Is For

• Amateur astronomers using refractors, reflectors or compound telescopes
• Educational astronomy programs requiring durable and repeatable focusing
• Observatory setups where consistent focus and alignment are critical
• Amateur astrophotographers needing stable focus during long exposures
• Telescope dealers and resellers offering accessory kits for telescope upgrades

Problems It Solves

• Fixed focuser positions force the observer to reposition their body instead of adjusting the eyepiece angle
• Lack of fine adjustment leads to over-focusing and missed focus points during critical observations
• Short focusing stroke limits compatibility with high-power eyepieces or extended optical paths
• Plastic or low-grade metal focusers lose alignment after repeated use
• Incompatibility between host thread and eyepiece size requires multiple adapters

Technical Features

• Dual-speed focusing mechanism with 1:10 fine adjustment ratio
• 360° continuous rotation for unrestricted eyepiece orientation
• Focusing stroke of 0 to 70mm for deep focus reach
• Manual operation with no electronic components or power required
• M96.5x1 threaded host interface for secure telescope mounting
• 2'' eyepiece interface with 1.25'' adapter compatibility
• All-metal construction for mechanical stability and long-term use

Specifications

Specifications are taken from the AMADA product data for this item. Confirm critical dimensions with us in writing before ordering.

Customization Options

• Available in standard configuration with M96.5x1 host and 2'' eyepiece interface
• Can be supplied with or without 1.25'' adapter for direct use with smaller eyepieces
• No custom thread or interface changes offered beyond the listed specifications

Comparison With Other Options

Use Guide

• Ensure the M96.5x1 host thread is clean and properly aligned before mounting
• Use the coarse adjustment to move the focuser close to focus, then switch to fine adjustment for precision
• Rotate the focuser fully to 360° to find the most comfortable eyepiece angle for viewing
• Do not force the focusing knob; if resistance is high, check for misalignment or debris
• When using a 1.25'' eyepiece, insert the adapter fully to prevent light leak or image shift