SVBONY dual narrowband H-Alpha/O-III 7nm narrowband filters are specially designed for astrophotography in light-polluted environments, allowing imaging under bright artificial light pollution and moonlight conditions to capture color images without using multiple filter combinations. Images are most useful with single-use color cameras; can be used for imaging emission nebulae, planetary nebulae, and supernova remnants; high transmittance and sharp cutoff can greatly enhance contrast, showing the most detailed information about deep sky objects; designed to drastically cut off sodium Artificial light interference from vapor or mercury vapor street lights and other unwanted interference (e.g. sky glow); Dual Band Narrow Band Filters are not suitable for visual observation and are not designed for imaging or observing the sun. Please note that the SV220 is not well suited for fast telescopes, some users have reported that dual-band OSC filters paired with RASA can cause band shifts, thus clipping HA data. 1.SV705C telescope camera is not only for planetary imaging; but also very powerful for EAA and lucky imaging; entry-level deep sky shooting; suitable for EAA enthusiast crowd 2.Compared with IMX485 sensor; IMX585 has 3 times the number of full well charges; and has a very high signal-to-noise ratio; which can improve users' shooting efficiency and capture outstanding celestial images 3.SV705C planetary camera adopts 1/1.2 inches frame; the maximum resolution is 3856×2180; the image area is 11.2mm×6.3mm; the diagonal is 12.85mm; obtain rich details of celestial bodies 4.The near-infrared sensitivity is 1.7 times that of the previous generation; which can greatly improve the near-infrared shooting efficiency and capture more details of celestial objects under the same exposure time 5. Dual-gain HDR; which still retains a very high dynamic range at high gain;