Christmas is fast approaching! To make sure your gifts arrive on time and shine under the tree on December 24th, place your orders now!


More products from the brand :Rainbow Astro

Rainbow Astro RST135 harmonic mount

CHF 4'499

Disponible en stock chez le fournisseur

Free delivery
Easy, free returns

Rainbow Astro RST-135 mount: Lightweight, High-Performance and Ultimate Precision for Astrophotography

The Rainbow Astro RST-135 mount revolutionizes nomadic astrophotography thanks to its innovative technology, combining exceptional lightness, uncompromising precision and versatility of use. Available in two versions, the standard RST-135 and the RST-135E with absolute encoders, it meets the varied needs of both amateur astronomers and professional astrophotographers.

Why choose the Rainbow Astro RST-135?

  • Harmonic Drive technology (Strain Wave Gear) Drastically reduces backlash, guaranteeing precise tracking even without counterweights.
  • Featherweight Only 3.3 kg for a load capacity of up to 13.5 kg without counterweight (18 kg with).
  • Dual Equatorial and Alt-Azimuthal Mode Flexibility of use for visual observation, planetary and deep-sky imaging.
  • Modern connectivity integrated GPS, Wi-Fi and ASCOM compatibility for quick and easy control via smartphone or PC.
  • Premium Design Sturdy construction in CNC-machined AL6061 aluminum, durable and aesthetically pleasing.

RST-135 vs RST-135E : Comparison chart

Features RST-135 RST-135E (Absolute encoders)
Weight 3.3 kg 3.4 kg
Payload 13.5 kg (without counterweight) 13.5 kg (without counterweight)
Transmission Harmonic Drive Harmonic Drive
Absolute encoders No Yes (RA axis, Renishaw)
Engine Swiss made Maxon DC High precision servo Swiss made Maxon DC High precision servo
Periodic accuracy (PE) Better than competitors ± 2.5 arcsec, real-time correction via encoder
Recovery from power failure Manual search required Immediate automatic restart (absolute encoder)

Key benefits and differentiation

Harmonic Drive technology virtually eliminates mechanical backlash, resulting in exceptional precision when tracking celestial objects. Unlike traditional geared mounts, it requires no adjustment of mechanical backlash, reducing maintenance to a minimum.

Thanks to its light weight and high load-bearing capacity without counterweight, the RST-135 is ideal for travelling astrophotographers looking for a quick, transportable set-up.

Guiding accuracy

Rated at ± 2.5 arcsec, this mount produces perfectly round stars at any focal length!

Examples

Quick installation and commissioning

  1. Install the mount on your tripod.
  2. Select equatorial or alt-azimuth mode as required.
  3. Use the built-in viewfinder to perform polar alignment.
  4. Activate the built-in GPS to automatically initialize date, time and location.
  5. Start the rapid alignment procedure via the controller or a compatible application.

Positioning and Guiding comparison: RST-135 vs RST-135E

Criteria RST-135 RST-135E
Initial alignment time ~5 min ~2 min
Typical guidance error (RMS) < 1 arcsec < 0.5 arcsec
Resumption after interruption Manual Automatic

Conclusion: An exceptional mount for demanding astrophotographers

Whether you're an amateur astronomer looking for mobility and ease of use, or an experienced astrophotographer demanding impeccable precision, the Rainbow Astro RST-135 mount is the perfect solution. Choose the RST-135E if you want to benefit from the highest precision offered by absolute encoders. When you choose Rainbow Astro, you choose excellence in astrophotography.

Products in the same category

Astrographe Super Apo Askar SQA106
Astrographe Super Apo Askar SQA106
Original price was: CHF 3'099.Current price is: CHF 2'899.
Sky-Watcher Esprit 80EDX
Sky-Watcher Esprit 80EDX
CHF 899
DWARF 3 - Smart télescope ultra polyvalent
DWARF 3 - Ultra-versatile smart telescope
Price range: CHF 479 through CHF 579
Monture harmonique iOptron AZ/EQ HAE43B-EC avec encodeur et iMate
iOptron AZ/EQ HAE43B-EC harmonic mount with encoder and iMate
Price range: CHF 3'280 through CHF 4'189
Sky-Watcher WAVE-150i Tête de monture STRAINWAVE
Sky-Watcher WAVE-150i Mounting head STRAINWAVE
CHF 2'049
Sky-Watcher Esprit 100EDX
Sky-Watcher Esprit 100EDX
CHF 1'339
Sky-Watcher Star Adventurer MINI Wi-Fi (SAM) (Kit Photo)
Sky-Watcher Star Adventurer MINI Wi-Fi (SAM) (Photo Kit)
CHF 275
Case n°11 du calendrier de l'Avent 2025 - Un super HUB USB
Case n°11 du calendrier de l'Avent 2025 - Un super HUB USB
Original price was: CHF 189.Current price is: CHF 169.
Sky-Watcher Esprit 120EDX
Sky-Watcher Esprit 120EDX
CHF 2'089
Sky-Watcher Skyliner-200P FlexTube SynScan Go-To
Sky-Watcher Skyliner-200P FlexTube SynScan Go-To
Original price was: CHF 1'219.Current price is: CHF 1'179.
Caméra ToupTek G3M678M  (IMX678M mono)
ToupTek G3M678M camera (IMX678M mono)
CHF 219
Monture Celestron CGX-L complète
Complete Celestron CGX-L mount
CHF 4'999
Case n°7 du calendrier de l'Avent 2025 - Rabais sur la nouvelle HOPE D60
Case n°7 du calendrier de l'Avent 2025 - Rabais sur la nouvelle HOPE D60
Original price was: CHF 729.Current price is: CHF 679.
Module d'alignement automatique StarSense (Celestron ou Sky-Watcher)
StarSense automatic alignment module (Celestron or Sky-Watcher)
Price range: CHF 509 through CHF 589
DayStar Quark - Calcium H-line
DayStar Quark - Calcium H-line
CHF 1'215
Case n°10 du calendrier de l'Avent 2025 - Panneau à flat auto 100mm !
Case n°10 du calendrier de l'Avent 2025 - Panneau à flat auto 100mm !
Original price was: CHF 289.Current price is: CHF 249.

Our new products

Case n°12 du calendrier de l'Avent 2025 - URANUS METEO SENSOR
Case n°12 du calendrier de l'Avent 2025 - URANUS METEO SENSOR
Original price was: CHF 399.Current price is: CHF 359.
Case n°11 du calendrier de l'Avent 2025 - Un super HUB USB
Case n°11 du calendrier de l'Avent 2025 - Un super HUB USB
Original price was: CHF 189.Current price is: CHF 169.
Case n°10 du calendrier de l'Avent 2025 - Panneau à flat auto 100mm !
Case n°10 du calendrier de l'Avent 2025 - Panneau à flat auto 100mm !
Original price was: CHF 289.Current price is: CHF 249.
Trépied en carbone iOptron charge lourde 40mm Ver.A
Trépied en carbone iOptron charge lourde 40mm Ver.A
CHF 299
iOptron SkyGuider Pro
iOptron SkyGuider Pro
CHF 299
Askar SQA130
Askar SQA130
CHF 3'889
Universal Filter Wheel Adapter for Wanderer ETA
Universal Filter Wheel Adapter for Wanderer ETA
CHF 59
Case n°9 du calendrier de l'Avent 2025 - Filtres SHO Antlia 3nm PRO 2"
Case n°9 du calendrier de l'Avent 2025 - Filtres SHO Antlia 3nm PRO 2"
Original price was: CHF 1'197.Current price is: CHF 999.
Case n°8 du calendrier de l'Avent 2025 - Pack wanderer astro !
Case n°8 du calendrier de l'Avent 2025 - Pack wanderer astro !
Original price was: CHF 1'149.Current price is: CHF 1'049.
[category_menu_mobile]