You searched for "naked eye limiting magnitude"

Optolong L2 Dual Combo Filters Review

Thursday, July 30, 2026 by Jim Thompson

Optolong's multi-narrowband (MNB) filter is called the L-Synergy.  It has a 7nm wide pass band at O-III and another at S-II.  When paired with their existing L-eXtreme filter and a one-shot colour (OSC) camera, one is able to produce nebula images using the Sulphur-Hydrogen-Oxygen (SHO...

---

Astronomical weather station SMP R2 with ASCOM support

Tuesday, November 12, 2024 by Russ Scritchfield

Astro-Smart has introduced its new astronomical weather station product line, the Sky Master Pro SMP-R2 series, designed as an all-in-one solution for observatory and telescope environmental monitoring. The SMP-R2, available in both USB and RF models, combines essential sensors and controls into a s...

---

Loading more results...