Nearly three decades ago, a handful of employees left their jobs at Omega Optical and founded Chroma Technology in Vermont. Since then, the company, which is entirely owned by its roughly 150 ...

After many years of developing filters for telescope instruments with the support of prestigious institutes, CILAS is proud to introduce complex Astronomy filters as catalog products. Being aware of ...

This review, “Secret weapons,” appeared in the August 2005 issue of Astronomy magazine. It seems inevitable. No sooner do you get a new telescope than you begin to wonder what to buy next. Maybe some ...

We've rounded up the best neutral density filters, allowing you to enhance your nightscape and astro photography. When you purchase through links on our site, we may earn an affiliate commission. Here ...