The SKU included in these combinations correspond to the following:
- SV220 Dual band Filter 7nm 2inch, SKU: W9172B
- SV119 M48 Extension Tube kit of 5mm 10mm 15mm 30mm, SKU: F9190A
- UV-IR Cut Filter, SKU: F9127B
- UHC Filter, SKU: F9131B
- SV132 H-Beta Narrowband Filter 2inch, SKU: W9102B
- SV226 Filter Drawer, SKU: W9184A
- SV164 Dark Filter, SKU: W9124B
- SV133 filters wheel 2inch, SKU: W9103B
Special offers and product promotions
_md.jpg "product")
_md.jpg "product")
SVBONY 7nm dual band filter is designed to drastically reduce the effect of light pollution. The 7nm bandwidth means it strongly isolates
the nebulae's emissions into H-Alpha (red) and OIII (green-blue) from anything else. It blocks light pollution, maximizes the signal from
nebulae, and darkens the sky background. It also blocks artificial light from mercury vapor lamps, high- and low-pressure sodium vapor
lights, and unwanted natural light caused by the emission of neutral oxygen in our atmosphere.
Dual Narrow Bandwidth H-Alpha/O-III 7nm Narrowband Filter Properly Designed For astrophotography of emission nebulae, planetary
nebulae and supernova remnants. The high transmission and sharp cut-off greatly enhances the contrast of image and brings out the
most detailed information of those deep-sky objects.
The 7nm dual-band filter allows OIII (500.7nm) and H-Alpha (656.3nm) nebula emission lines to be highly transparent, strongly isolates
the nebulae's emissions into H-Alpha (red) and OIII (green-blue), and drastically reduces the effect of light pollution.
You can enjoy the fun of nebula shooting at anytime and anywhere in light pollution city or under a full moon. You don't have to to travel
through mountains and rivers for your photography, and your traffic fuel and time are also saved.
| Model | SV220 |
| Name | Duo-Band OSC Filter |
| Size | 2-Inch |
| Substrate Thickness | 1.80mm |
| Clear Aperture | 44mm |
| Wavelength Range | 300-1100nm |
| FWHM | OIII (7nm) & HA (7nm) |
| Blocking | OD5 |
| Peak transmittance | 500.7nm@T>90%; 656.3nm@T>94% |
| Surface Quality | 60/40 |
| Surface parallelism | 1/4λ |
| Thread | M48x0.75 |
| Single Thread | Yes |
| Net Weight | 12.5g / 0.44oz /0.027lb |
| Model | F9190A |
| Type | Astronomical M48*0.75 thread Extension Tube |
| Male thread | M48*0.75 |
| Female thread | M48*0.75 |
| Length | 5mm 10mm 15mm 30mm |
| Model | F9127B |
| Size | 2'' |
| Thread | M48*0.75 |
| thickness | 1.85mm |
| Type | UV IR cut filter |
| Model | F9131B |
| Size | 2'' |
| thickness | 1.85mm |
| Type | Ultra High Contrast Filter (UHC Filter) |
| Thread | Standard M48*0.75 |
| Model | SV132 |
| Type | H-Beta |
| Size | 2-Inch |
| Substrate | B270 |
| Substrate Thickness | 1.85mm |
| Wavelength Range | 400-700nm |
| CWL | 486nm±2nm |
| FWHM | 25nm±2nm |
| T peak | 90% |
| Blocking | OD3 @300-1100nm |
| Clear Aperture | 44mm |
| Surface Quality | 60/40 |
| Surface parallelism | 1/4λ |
| Parallelism | 30" |
| Net Weight | 13.2g / 0.47oz |
|
Model |
SV226 |
|
Product Name |
Filter Drawer |
|
Thickness |
21mm |
|
Support Filter size |
1.25" &2" |
|
Material |
Aluminum |
|
Camera side thread |
M42 x0.75 (male) |
|
Filter mounts thread |
M48x0.75/M28.5x0.6 (female) |
|
Telescope side thread |
M48x0.75 (female) |
|
Net Weight |
400g |
|
Diameters |
130x120x100mm |
| Model | W9124B |
| Size | 2 inch |
| Material | Metal |
| Thread | Standard M48*0.75 |
| Type | Dark Frame Imaging Filter |
| Thickness | 1mm |
Features
1.Dual Narrow bandwidth H-Alpha/O-III 7nm narrowband filter properly designed for astrophotography both in light polluted
2.Allows for imaging in bright man-made light pollution and moonlit conditions
3.Take color images without needing to combine images with multiple filters
4.Most useful for One-Shot Color cameras
5.Useful for imaging emission nebulae, planetary nebulae and supernova remnants
6.High transmission and sharp cut-off can greatly enhance the contrast and bring out the most detailed information for those deep-sky objects
7.Designed to sharply cut off the inference of artificial light from sodium vapor or mercury vapor street lights and other unwanted disturbance like sky glow
8.The duo-band narrowband filter is not suitable for visual observation and not designed for imaging or observing the Sun
9.Be aware that the SV220 is not a great fit for fast telescopes, some users reported that the Duo-Band OSC Filter paired with the RASA caused band shift, thus clipping the HA data.
The Reviews by Cuiv
Unboxing by Felipe Almario
