SVBONY SV227 1.25" SHO 5nm Narrowband Filter Set for Deep Sky
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Key Features
The SV227 SHO filter set includes H-Alpha, OIII, and SII filters, providing everything you need for high-quality, narrowband astrophotography with your 1.25-inch telescope.
With a 5nm bandwidth, these filters offer exceptional sensitivity and detail, enabling sharp and clear images of emission nebulae and other deep-sky objects.
Crafted from premium optical glass, these filters deliver superior image quality with minimal light loss, ensuring vivid and accurate color representation.
The SV227 filters are built to withstand the rigors of astrophotography, offering durability and reliability for long-lasting performance during imaging sessions.
Designed for easy installation, this filter set is compatible with most 1.25-inch telescope eyepieces, making it ideal for amateur and professional astrophotographers alike.
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Cut-off Depth ≥OD5
With a Cut-off Depth ≥OD5, the SV227 1.25 inch narrowband filter set can effectively block unwanted light, ensuring pure and clear stargazing.
Cut-off Depth ≥OD5
With a Cut-off Depth ≥OD5, the SV227 1.25 inch narrowband filter set can effectively block unwanted light, ensuring pure and clear stargazing.
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| Brand | SVBONY |
| Size | 1.25-Inch |
| Model | SV227 |
| Net Weight | 15g |
| ThreadType | M28.5x0.6 (1.25") |
| Brand | SVBONY |
| Product Name | SII & OIII & H-Alpha Filter |
| Model | SV227 |
| SKU | W9187A |
| Spec | 5nm |
| Size | 1.25-Inch |
| Transmission Line Wavelength | 500.7nm & 656.3nm & 671.6nm |
| Peak Transmission Rate | T ≥90% |
| Wavelength Range | 300-1000nm |
| Blocking | OD5 @300-1000nm |
| Clear Aperture | 26mm |
| Surface Quality | 60/40 |
| Surface Parallelism | 1/4λ |
| Cut-off Depth | Average ≥ OD5 |
| Parallelism | 30" |
| Thread Size | M28.5x0.6 |
| Thread Type | Single thread / Male thread |
| Net Weight | 140g |
| Substrate Thickness | 1.85mm |
| Surface Treatment | CNC / Black Anodized |
| Material | 6061T Aluminum Alloy |
| Net Weight per Piece | 15g |
| Filter Diameter | Φ31.75x7mm |
Feature
- 1. Optical high precision double sided polishing to ensure that the parallelism is higher than 30 inch and high flatness 1/4λ; to ensure that does not affect the image quality
2. Precision double sided optical coating; non two piece glue; effectively improve the transmittance and cut off depth
3. 300-1000nm wavelength range; Oxygen III 5nm extra narrowband filter transmits a 5nm bandwidth of light that is centered at 500.7nm
4. Standard 1.25 inch interface; thin metal cells have a clear aperture of 26mm for 1.25 inch filters
5. 300-1000nm wavelength range; the Sulfur II 5nm extra narrowband filter transmits a 5nm bandwidth of light that is centered at 671.6nm
Package Includes
1.25-inch H-alpha Filter x1
1.25-inch SII Filter x1
1.25-inch OIII Filter x1
PP Storage Cases x3
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