Codice articolo: ASDNBF2
Askar 2" Duo Narrowband deep-sky nebula filter with 6 nm O-III and H-alpha passband - without halos around bright stars for color and monochrome cameras
♦ Nebula filter in 2" low profile cell with M48x0.75 threaded connection
♦ Over 90% light transmission at O-III and over 95% light transmission at H-Alpha
♦ Narrow band filter with only 6 nm bandwidth for extreme contrast
♦ Stray light is effectively eliminated and even at full moon high contrast images are possible
♦ Disturbing halos around stars are suppressed by an anti-reflective coating
Askar Duo Narrowband Filter with 6 nm Bandwidth for Deep-Sky Astrophotography
For all astrophotographers, filters are one of the indispensable accessories to achieve perfect deep-sky images. Nebula filters for deep-sky photography can effectively eliminate the influence of background light and improve the contrasts of your photos. Askar´s 6 nm Deep Sky Duo Narrowband Filter Colour Magic is designed specifically for astrophotography with modern cameras and is suitable for telescopes and camera lenses.
The narrow bandwidth of 6 nm allows you to capture high-quality deep-sky images even in the presence of significant light pollution or even bright moonlight. The contrast is significantly improved. The filter can be used with b&w/mono and with color astro cameras, DSLR and mirrorless system cameras.
In addition, the Colour Magic 6-nm nebula filter offers very good halation control, which significantly reduces annoying halos and reflections around stars.
Highest efficiency with a color camera and only two filters
In combination with the Askar 6nm Duo narrowband filter OIII & SII (see "Recommended Accessories"), RGB data and the three common emission lines can be acquired with one color camera and only two filters (Ha/O-III and S-II/O-III).
Type: | Nebula filter |
Size: | 2" mounted |
Connection thread: | M48x0.75 |
Filter cell: | metal - low profile |
FWHM: | 6 nm |
CWL: | 500.7 nm and 656.3 nm |
Filter glass thickness: | 1.85 mm |