Manufacturer: Starlight Instruments
Product number: FTF2515HD

EUR 890,00


incl. 19 % VAT (DE)  
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Starlight Instruments Feather Touch FTF2515HD - 63 mm clear aperture (2.5")
This rack and pinion focuser is for all amateur astronomers who needs a bigger focuser than 2" which should be compact. The focuser especially offers a better illumination, needed for working with larger sensors. With only 38, the travel range is rather tight and therefore well suited for Newtonian telescopes where the draw tube should not protrude into the tube. Currently, this focuser is praised as a better alternative to 2" focusers.

The advantages of the 2.5" Feather Touch focuser:
100% correct position of of the image plane - no tilting or bending
Clear aperture of 63 mm, enough to illuminate full-frame sensors
Best mechanical workmanship
Internal baffles
Gentle clamping by compression ring


Technical information:
Robust housing - no bending
1:10 gear reduction for exact focusing
free adaption to different telescope types (connection adapters can be found at the accessories recommendations)
Brake for adjusting of the drag and clamping of the draw tube
Rack and pinion, no friction - for even better transmission of power
Brass gear rack and hardened stainless steel gear wheels ensures precise adjustment even under maximum load
Helical gears for smooth motion
Screw-on extension tubes (see recommended acessories)


Note: connection adapters to the telescope are not included in the scope of delivery.

Connection adapters to the telescope are listed under "Accessories for mounts".
Eyepiece-side and camera-side adapters are listed under "Adaptors".
Type:Rack and pinion focuser with gear reduction
Clear aperture:63 mm (2.5")
Draw tube travel:38 mm (1.5")
Maximum load:approx. 7 kg (13-15 pounds)
Thread on entry (OTA | FRONT) side:M95x1 male thread
Draw tube thread:M63x1 female thread
Racked In from Mounting Face:93.27 mm (3.672")
Racked Out from Mounting Face:136.35 mm (5.368")
Weight of focuser with standard adapter:1.35 kg (2.97 pounds)
Reduction ratio:10/1
Finderscope hole thread dimension:8-32-1/2 (distance of holes approx. 20 mm)
Focuser
Without adaptation to the telescope - the adapter is optional
2" adapter on the eyepiece side is optional



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