Feather Touch® 3.5″ Diameter Dual Speed Telescope Focuser Kit, 4.5″ Draw Tube Travel, and Brake

Code: FTF3545B-A
Known To Fit Large Refractors
Lifting Capacity 18-20 pounds
Draw Tube Thread 4 3/32 X24TPI thread on vizual side of draw tube
Draw Tube Travel 4.5″/114.30MM
Accessory Locking Collar 5.125×24 Female Thread
Other Info Focuser weighs 6 pounds
Draw Tube Drive Mechanism Rack/Pinion
Finderscope hole thread dimension 8-32
Reduction Ratio 10:1
Weight of focuser 5.938 pounds of which includes the standard adapter and 2″ compression ring end cap
Racked In from Mounting Face 5.236 w/Compression Ring End Cap
Racked Out from Mounting Face 9.736″ w/Compression Ring End Cap


In stock (can be backordered)

In stock (can be backordered)


Feather Touch® 3.5″ Diameter Dual Speed Telescope Focuser Kit, 4.5″ DTT, and Brake.

The photo of the 2 telescopes with Feather Touch focusers is courtesy of Bill McLaughlin.

The telescope must have at least 4.35″ of clearance for the draw tube to go inside of the telescope, if not the draw tube will “bottom-out” and give you more back focus.

Please select the proper tube adapter ring and end cap that are needed.  If a Finder Scope Bracket is required, please select appropriate option from the drop down box.

Additional information

Weight 6 lbs
Dimensions 18 × 14 × 10 in


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.