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Astrophotography is all about capturing light from billions of years ago. As avid astrophotographers, the STC team thought long and hard about how to create a filter to capture ultra-high contrast nebulae images - even with urban light pollution.
STC is the FIRST company in the world to create a dual-narrowband pass in ONE filter for deep sky astrophotographers. As experienced astrophotographers painfully know, shooting multiple images using two different filters would be necessary. Our Duo-Narrowband filter cuts the time required in half! Many have tried to copy our technology. None are successful in delivering our level of optical quality!
STC’s Astro Duo-Narrowband filter is specifically engineered to capture 7-12nm bandpass for H-Alpha, and Oxygen III nebula emission lines found in gaseous nebulae. With a transmission rating of greater than 85%, this is an astrophotographers' dream filter.
Canon, Nikon, Sony, Fujifilm, Pentax, Olympus, Panasonic, Blackmagic Pocket Cinema Camera and Z Cam E-2.
This gorgeous image was captured by Shigemi Numazawa, the famed astrophotographer and painter using STC's Duo Narrowband Filter. This filter is designed with two high-transmission narrow bands to enhance the H-alpha (656nm) and OIII (500nm) wavelengths while suppressing light pollution and longer wavelengths to bring more detail and contrast.
If his name sounds familiar, his paintings were custom printed for set dressings for Star Trek's Deep Space Nine TV series. He also happens to be the President of the Japan Planetarium Laboratory.
Our Duo Narrowband Filter specifically captures the frequencies need to create sharp images deep sky objects. We use ion beam-assisted deposition (IBAD) to coat our optics. This process creates a durable coating with the desired spectral characteristics desired by astro enthusiasts.
In addition, all of STC's optics are coated with our Ultra Layer nano coating which chemically strengthens the glass, as well as provide an anti-smudge and hydrophobic characteristics.