TS 2' Dual Speed Crayford Focuser for Newtonians with Base

TSFOCN2M

in stock

TS 2" Dual Speed Crayford Focuser for Newtonians with Base

148,00 EUR
incl. 19 % Tax
excl.Shipping costs

Description

2" Crayford focuser with 1:10 micro transmission for Newtonian telescopes

This focuser offers best value for your money. It runs very smooth even under high load up to 2.5 kg.

Compared with simple rack & pinion focusers, the "Foc N2" is a really improvement.

Many amateur astronomers use this focser to retrofit their telescopes.

Mounting to the OTA:
The focuser comes with a versatile four-hole mounting plate. The horizontal bore distance is 70mm, the vertical bore distance is 72mm.

The 1:10 micro transmission:
enables you to perform very precise movements of the drawtube. Turning the 1:10 focus knob by 10° moves the focuser by only 0.038mm. This is good enough even for fast systems with highly resolving sensors.

Scope of delivery:
-- 2" Crayford focuser with universal adapter plate
-- 2" - 1.25" reducer with brass clamping ring

Adjusting the focuser's tension:

The knurled screw on the eyepiece side adjusts for the focuser's tension. The heavier the load is, the stronger this screw has to be engaged in order to prevent the focuser from slipping.

Fixing the position:

Astro photographers will like this feature. When the knurled screw on the telescope side is tightened, the focusing mechanism is disengaged and the drawtube is locked; thus preventing the focuser from unintended moving.

Technical details:

Weight:	ca. 650 g without and 700 g with 1,25" adapter
min. heigth:	71mm from the base up to the 2" receptacle
Travel:	35mm - this is, compared with other focusers, more than standard
Travel per revolution:	14mm per 360°. So 10° give ca. 0.38mm travel. By using the 1:10 knob, this value is 1/10th of the normal ratio.
Base:	Formed for tubes >170mm outer diameter with bar for flat planes.
Equipment:	Locking mechanism, tension adjustment, Reducer 2" - 1.25" with 2" filter thread

We recommend following products:

MFGSO4

195,00 EUR*

* excl.Shipping costs

TSMotorfok

148,00 EUR*

* excl.Shipping costs

TS Focus motor for GSO Crayford focusers - precise focussing