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Star tracker with a strain wave gear in Optron HST MiniTracker
Monday, December 8, 2025 by Richard Harris
iOptron has introduced a new strain wave gear approach to sky tracking with the HST MiniTracker. Just as jet engines revolutionized aviation by packing far more power into a compact form, strain wave gears have transformed modern astronomy - first in high-end GOTO mounts, and now, finally, in ultra-...
ClearSky ST-17 R harmonic mount
Friday, December 5, 2025 by Richard Harris
2025 was definitely a year for harmonic drive mounts. With so many choices appearing in quick succession it is easy for a new piece of gear to slip past unnoticed, especially when the big names like ZWO, Sky-Watcher, and iOptron take up most of the space in the conversation. The ClearSky ST-17 ...
New harmonic drive mount from MLAstro: The SAL-33
Wednesday, September 17, 2025 by Richard Harris
Astrophotography gear often comes from familiar big-name brands, so a new mount from a small solar-imaging company might raise some eyebrows. MLAstro, a Vietnam-based startup known for its cutting-edge spectroheliograph (narrowband solar imaging device), has taken a bold leap from capturin...
DIY flat panel
Thursday, August 14, 2025 by Russ Scritchfield
Astrophotographers are constantly innovating to improve their imaging workflows, often creating custom tools that rival commercial products at a fraction of the cost. One clever example comes from a maker who modified a standard LED tracing panel to function as an ASCOM Alpaca-compatible flat panel ...