Because Svbony Brand H-Alpha Filter is 656nm mainly through the high permeability of the spectrum, and 656nm spectrum of the color presented by the red-based, 300-1100nm cut-off depth to get the details of the launch nebula richer.
1. The SVBONY CLS EOS -C Filter is suitable the Camera Type: 60D/60DA, 7D Mark II, 80D/800D, 77D/70D/760D/750D/700D 650D/600D, 550D/500D, 400D, 100D/1100D/1200D/1300D. Notes, this Filter is not for EF-S camera Lens
2. The narrow-band filter, even in areas where light pollution is heavy, and the full moon (the moon's largest and brightest) is the same, very narrow bandwidth, which reduces the interference of the external environment, but the haze and cloudy The weather is not possible
3. We provide you with three different sizes to choose from, please choose the one suitable for your focuser