Rainbow Astro RST135E harmonic mount (Renishaw encoders)

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

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.

Tracking accuracy

Rated at ± 2.5 arcsec, this mount produces perfectly round stars at any focal length! With or without guiding, you'll get exceptional performance!

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

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.