Manufacturer: -TS Zubehör
Product number: UNCR2

EUR 199,00RRP EUR 235,00you save 15.3% (EUR 36,00)


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TS UNCR2 2" Crayford Focuser for Refractors and RC Telescopes
The TS UNCR2 is a short focuser with only 60 mm height. The excellent workmanship make this focuser to one of the best in its class. Through the short length, the focuser can be adapted to almost all refractors with tubes from 80 mm diameter. Ideal if the otherwise good refractor is to be retrofitted by an excellent focuser for astrophotography or heavy accessories.

The adaptation of the UNCR2 to your telescope:
At the telescope side, the focuser has a connection matching to a dovetail ring with 72 mm outer diameter. We will be glad to offer you a custom adaption to your telescope.

For Skywatcher refractor telescopes and on the important M90x1 connection thread we offer ready made adapters. You can acquire an individual adaptation to your telescope from us with the article Sonder105.

The advantages and features of the TS UNCR2 focuser:
Besides the 2" and 1.25" compression rings, the focuser offers a male M65x1 thread for threaded adaptions. That is important mainly for astrophotography.
The focuser is only 60 mm heigh, so not much valuable optical way gets lost, you will have no problems with the focus position.
The focuser has generous 72 mm travel.
Reinforced ball bearings and V2A bearing surface offer maximum rigdity and full functionality even after many years where aluminum slowly abrades.
The 1:10 speed reduction has professional quality and is also made of V2A and hardened steel.
Massive steel rails are worked into the drawtube as counter surfaces for the ball bearings to ensure a smooth motion.
The drag is adjusted with a friction screw. Locking the focuser becomes unnecessary, as the focuser keeps the position, even at high load. However, a knurled locking screw is built in.
Steel parts and gear drives are designed for long-term operation under heavy load, especailly for astrophotography. The stainless steel ball bearings are combined with bearing surfaces also made of from stainless steel, so nothing can incise into soft aluminium.
The drawtube is furnished with anti-reflex baffles to improve contrast. However, you can sink 2" accessories into the focuser.
A cogwheel takes the movement of the optional TSACUMOTORFOK motorfocus. However, a friction clutch allows manual operation. The power is transmitted by a speed-reducing drive, so exact focusing is guaranteed also with motor drive.

Type:Crayford focuser
Drawtube travel:72 mm
Minimum height:60 mm with retracted drawtube
Weight:1100 grams
Drawtube drive:Crayford principle with 4 strengthened ball bearing which are supported in a way to be adjustable
Drawtube:with anti-reflex thread
Inner diameter:matches 2" accessories without bottelneck
Eyepiece side connection:2" and 1.25" with compression ring and male M65x1 thread
Telescope side connection:Receptacle with 73.3 mm diameter - depth 9 mm - matches Baader D=72 mm dovetail ring
TS UNC Focuser
Reduction from 2" to 1.25"

What is the function of the screws on the fixed part of the UNC focusers?




Basically you should always move the UNCN2 via fine focusing. With the coarse adjustment comes the feeling of a somewhat irregular adjustment. This has to do with the fine focusing which is then turned at "turbo speed".
The large knurled screw (in the middle) is used for locking. You should tighten it only slightly and always loosen it before adjusting.
With the hexagon socket screw in the middle you adjust the friction. This screw should only be tightened in such a way that the focuser does not move by itself at maximum load, for example with a 2" eyepiece or with a camera.
The two small M4 hexagon socket screws on the right and left side of the center only close blind threads. They are used to mount an optional focusing motor.
The two outer M4 hexagon socket screws fix the adjustment.
If the fine focusing knob is too close to the black coarse focusing knob, it may grind a little. At the outer silver knob you have a small hexagon socket screw, you can loosen it with an Allen wrench and then move the fine focusing knob a little further away.



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