Adam Block Studios now offers streaming video tutorials that teach astrophotographers how to use the popular image-processing software PixInsight via comprehensive and in-depth lessons. PixInsight Fundamentals ($180) is an in-depth primer of the core functionality of the powerful software package, while PixInsight Horizons ($250) discusses many advanced techniques to help you get the most out of your image data.
Author (and former S&T editor) Stephen James O’Meara rolls out his latest ebook Diamonds in the Sky: Discover the Stars Over Botswana ($5.98). This introductory field guide to exploring the night skies is geared towards, though not limited to, anyone considering a trip to the exceedingly dark southern skies of Botswana.
Tele Vue Optics teams up with filter manufacturer Astronomik to revamp its series of nebula filters for deep-sky observing. The Tele Vue Bandmate Type 2 Filters are offered in three select passbands and are offered in ¼-inch (starting at $100) and 2-inch format ($200 and up).
Willmann-Bell releases the 5th volume of Annals of the Deep Sky: A Survey of Galactic and Extragalactic Objects by Jeff Kanipe and Dennis Webb ($24.95). The series continues to be the most up-to-date and comprehensive observing guide available in the 21st century.
The OPT Triad Tri-band narrowband filter is designed to pass wavelengths centered at 493 and 656.3 nanometers and is available in 1¼-inch and 2-inch formatted cells for $375 and $775 USD, respectively.