×
Click for more products.
No products were found.

TS-Optics 2" MONORAIL focuser for SC telescopes - Micro reduction 1:10 - SC thread

This focuser is more stable and precise than conventional Crayford focusers. We recommend the focuser especially for astrophotography.

♦ 2" SC thread telescopic connection

♦ Eyepiece side connection: 2" and 1.25" plug-in connection with compression ring

♦ Minimum height to thread: 112 mm

♦ Adjustment range: 50mm

♦ 1:10 speed reduction for precise focus

♦ Storage on stainless steel rail - absolutely torsion-free

♦ Centric clamping of the draw tube guaranteed without tilting

Read moreShow less
€249.95 (VAT incl.)
Entrega entre 7 y 9 días laborables
Reference:
MonorailSC
Description

TS-Optics 2" MONORAIL focuser with 2" SC thread connection

The TS monorail focuser for many Schmidt-Cassegrain telescopes from Celestron , as well as Maksutov-Cassegrain from Intes, is a further development of the proven Crayford focusers. Our goal was to offer a focuser for the highest loads, such as heavy CCD cameras, with very high precision at the same time. This is exactly what the Monorail extensions have achieved.

The MonorailSC has a 2" SC thread on the telescope side. This allows connection to SC telescopes from Celestron , but also Maksutow-Cassegrains from Intes and some RC telescopes.

With this focuser, you can not only focus very precisely, but also avoid annoying mirror shifting.

Caution: For most fork-mounted SCs, the focuser is too long and would hit the base, and on telescopes smaller than 6" aperture, the focus knob is too close to the threads to allow the mount to be mounted. focuser.

Summary of the advantages of the TS Monorail focuser:

♦ Higher resilience than normal Crayford focusers: instead of small ball bearings, a solid stainless steel rail is used, which is fixed on the side.

♦ More precise guidance of the air chamber and no more tipping when clamping

♦ smooth operation and finer adjustment even with loads up to 4 kg

♦ 1:10 micro-speed reduction for precise focus

♦ Motor focus can be tailored

How the MONORAIL focuser works and the advantage over Crayford focusers:

Instead of small ball bearings, as is the case with Crayford focusers, a solid stainless steel rail takes care of storage as well as lateral fixing.

The downside of ball-bearing Crayford focusers: The small ball bearings in the Crayford focuser are loaded when clamped. Also, since the clamping screw is not located exactly between the ball bearings, a pair of ball bearings will be more heavily loaded. The result is tilted, fuzzy stars in one corner.

The advantage of the MONORAIL principle: the function of the ball bearing is taken over by the stainless steel rail, which is permanently connected to the extension tube. Nothing can go wrong there anymore. Only the side guide is still taken over by ball bearings. However, these bearings only fix the lateral position and no longer have to absorb any load.

The extension tube is fixed with a clamping screw, which is located exactly in the middle at the top. As a result, the entire structure is uniformly loaded. Definitely no more twisting, the extension tube remains 100% in the prescribed position.

With the lower center screw you only adjust the friction (resistance to friction) - see the image on the left.

Especificaciones:

Telescope connection: 2" SC thread
Eyepiece side connection: 2" receptacle with compression ring and reduction adapter to 1.25"
Minimum height SC thread to 2" receptacle: 112 mm
Draw tube travel: 50 mm
Scale: mmm and inch
Dual speed: included
Bearing: Stainless steel rail - Monorail principle
Weight: 860 g incl. 1.25" reduction adapter
Body outer diameter: 84 mm
Read moreShow less
Product Details
MonorailSC
Reviews
No comments

Menu

Share

QR code

Settings