The Wave 150i with steel tripod is the stable, full-height configuration of Sky-Watcher’s flagship strain wave mount. It’s designed for observers who want maximum rigidity, comfortable working height, and full use of the mount’s 55-pound payload — whether that setup stays in one place or travels occasionally to a dark-sky site.
Compared to the carbon fiber version, the steel tripod adds weight, but it also adds height and stiffness. It extends to 48 inches, giving larger telescopes proper clearance and a much more comfortable observing position. The added mass and rigid 2-inch steel legs provide a solid foundation for long imaging sessions and high-magnification work, where stability matters more than shaving a few pounds off the system.
This isn’t a “permanent-only” configuration — it’s the one you choose when stability, height, and full-capacity performance matter more than ultra-light portability.
Steel vs. Carbon Fiber: Design Intent
Both tripods carry the Wave 150i. Both support the same payload. The difference is in the use case. Carbon fiber is lighter, damper in the vertical plane, and portable — you're carrying it repeatedly. Steel is heavier, stiffer, and is better suited for setups where stability and height matter more than frequent transport to an observing site. The two-inch rolled steel legs of the Wave EQ6 tripod are proven. They've carried mid-sized German equatorial mounts for years. Sky-Watcher paired them with the Wave 150i for observers who want the modern mount architecture and guiding accuracy of strain wave technology with the proven stability of a heavy tripod.
Steel tripods vibrate differently than carbon fiber. Carbon fiber damps vibrations quickly — high frequencies dissipate in the material itself. Steel resonates — it transmits vibrations through the structure. That sounds like a drawback until you consider the context: in typical observing setups where the tripod is firmly planted on the ground or a solid surface vibration transmission through the legs doesn't matter. Nothing is moving the tripod. The added mass and stiffness of steel become pure advantages. You get rigidity and payload certainty without the complexity of carbon fiber's thermal properties.
Height: The Critical Difference
The carbon fiber tripod maxes out at 29 inches. The steel tripod extends to 48 inches. That 19-inch difference is significant. With the steel tripod, your large refractor or 8-inch SCT sits at a comfortable height for observing or imaging. Your eye reaches the eyepiece without bending awkwardly. Your autoguider is at a workable angle. Your data cables hang without tension. For backyard setups where the mount stays in one place, height makes a significant difference to the actual user experience — it's not just a spec, it's the difference between a pleasant evening and a cramped one.
The tripod legs are adjustable between 28 and 48 inches, allowing you to adapt to uneven ground or to step the height to suit your working position. This flexibility is valuable on observing sites where the ground isn't perfectly level.
What's in the Kit
-
Wave 150i mount head (S30905). The heavy-duty strain wave GoTo head with single D/V hybrid saddle, Wi-Fi and Bluetooth connectivity, EQ and AZ modes, ASIAir compatibility with included USB-B cable, and built-in cable management.
-
2-inch rolled steel tripod (S30918). Heavy-duty tripod legs rated for mid-to-large mounts. Adjustable height from 28 to 48 inches. Weighs approximately 15.9 pounds. Unpadded legs (common on heavy tripods — padding adds weight without value when the tripod isn't being transported).
-
Extension Tube (Included)
A 7-inch extension between the mount head and tripod. This increases clearance and prevents optical tube collisions with the tripod legs — especially important for long refractors and SCTs.
-
Extension tube. A 7-inch height extension between mount and tripod legs. Prevents optical tube/tripod leg collisions on large scopes. Included in the bundle.
Total system weight: approximately 31.1 pounds. Add a 6-inch refractor and camera and you're at roughly 50 pounds. The weight becomes an asset: more mass means less external vibration can shake the system.
Strain Wave Accuracy
The Wave 150i's value proposition doesn't change with tripod choice: strain wave drive, 300:1 ratio, near-zero backlash, sub-arcsecond guided accuracy (0.35–0.45" RMS). What changes is the platform stability. You're not worrying about tripod flex or vibration coupling. The foundation is solid. That stability allows the mount's accuracy to shine. You can take longer exposures, push fainter objects, and trust that guiding artifacts come from atmosphere or guide camera noise, not mechanical slop in the mount system.
EQ and AZ Modes
Like the CF version, the Wave 150i operates in both equatorial and alt-azimuth modes. EQ mode with polar alignment for astrophotography. AZ mode for visual observing, solar work, or daytime imaging — no alignment required. One mount, two observing styles, no hardware changes.
Connectivity
The Wave 150i connects wirelessly via SynScan app, or wired to ASIAir (cable included), or to a laptop running ASCOM or INDI-compatible software. RA power-off braking holds position when powered down. RA and DEC home position functions allow repeatable setups night after night.
Features
-
Strain wave drive, 300:1 ratio. Near-zero backlash, instant response to guide corrections, sub-arcsecond guided accuracy. This is the mechanical foundation that makes professional imaging possible.
-
33 lb payload without counterweight; 55 lbs with. Enough for large refractors, 8-inch SCTs, and big Newtonians. The counterweight kit (sold separately) unlocks the full capacity for the heaviest instruments.
-
12.8-pound mount head. Rigid and responsive, paired with a heavy tripod for maximum stability.
-
Single D/V hybrid saddle. Accepts both Losmandy and Vixen dovetail bars. Whatever your large scope uses, it fits.
-
EQ and AZ operating modes. Equatorial for imaging, alt-azimuth for visual. No compromises either way.
-
Wi-Fi, Bluetooth, USB-B. SynScan app for wireless control. ASIAir cable included for wired imaging automation. ASCOM/INDI for N.I.N.A., SGP, and Linux users.
-
2-inch steel tripod with 48-inch height. Heavy, rigid, and tall. Built for observing sites that don't move.
-
Extension tube included. A 7-inch extension between the mount head and tripod. This increases clearance and prevents optical tube collisions with the tripod legs — especially important for long refractors and SCTs.
-
Built-in cable management. Keeps data and power lines organized and reduces vibration coupling.
-
Red LED latitude scale and bubble level. Dark-friendly alignment tools for polar setup.
-
2400x maximum slew rate (10°/sec). Fast GoTo slews between targets.
The steel tripod configuration is ideal for observers who prioritize stability and working height over minimizing weight. It’s especially well-suited for backyard setups, repeated dark-sky locations, and imaging sessions where a rigid platform improves consistency and ease of use. While heavier than the carbon fiber version, it remains fully transportable when needed — just with an emphasis on stability rather than minimal weight.
Observing Tip
When you’re working at higher magnification or guiding long exposures, stability matters more than anything else. A heavier, taller tripod reduces vibration and makes the entire system easier to use — from focusing to tracking to framing your target. The difference isn’t subtle. It’s the kind of improvement you notice immediately at the eyepiece or in your guiding graph.
Frequently Asked Questions
Is a steel tripod better than carbon fiber for astrophotography?
Steel tripods are generally more rigid and offer greater stability, especially for long-exposure imaging and heavier telescopes. Carbon fiber is lighter and more portable, but steel provides a more planted platform when stability is the priority.
Do I need a counterweight with the Wave 150i?
The mount can carry up to 33 lbs without a counterweight, but for larger telescopes like a 6" refractor or 8" SCT, a counterweight is recommended to improve balance and allow full use of the 55 lb capacity.
Is the Wave 150i suitable for portable astrophotography?
Yes, but this steel tripod version prioritizes stability over portability. For frequent travel, the carbon fiber version is lighter and easier to transport.
What makes a strain wave mount different from a traditional equatorial mount?
Strain wave mounts use harmonic drive gearing, which eliminates backlash and allows high payload capacity without large counterweights. This results in more compact mounts with excellent tracking accuracy for astrophotography.
Accessories
-
Sky-Watcher Wave Counterweight Kit. Extends payload from 33 lbs to 55 lbs. Recommended for large scopes. Sold separately.
-
12V regulated power supply. For permanent installations, a bench-top 12V supply beats a battery. Cleaner, always available, no charging cycles.
Final Thoughts
The Wave 150i with steel tripod is the configuration for observers who prioritize stability, height, and full use of the mount’s capacity. It pairs modern strain wave drive performance with a proven, rigid tripod platform, creating a system that handles larger telescopes with confidence and consistency.
If you want a lighter, more travel-focused setup, the carbon fiber version makes more sense. But if your goal is a stable, comfortable platform that lets you focus on observing or imaging without compromise, the steel tripod configuration is the better tool.
