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🌙 Dim the glare, amplify the wonder — your telescope’s new secret weapon!
The SVBONY SV128 is a 2-inch variable polarizing filter designed for astronomic telescopes, allowing users to adjust light transmission from 1% to 40%. Made with high-definition optical glass and a durable metal frame, it enhances contrast and reduces brightness for superior lunar and planetary observation. Compatible with all standard 2" eyepieces, it comes with a protective case, making it an essential accessory for serious stargazers seeking sharper, clearer views.











| ASIN | B07VWL4219 |
| Best Sellers Rank | #1,149,659 in Electronics ( See Top 100 in Electronics ) #51 in Telescope Filters |
| Box Contents | 1X SVBONY SV188P Dielectric Mirror Star Diagonal |
| Brand Name | SVBONY |
| Coating Description | No Coating |
| Compatible Devices | 2 inch telescope eyepieces |
| Country of Origin | China |
| Customer Reviews | 4.8 4.8 out of 5 stars (100) |
| Enclosure Material | Optical Glass, Plastic |
| Item Dimensions D x W x H | 11.2D x 6.1W x 8.4H Centimeters |
| Item Dimensions L x W | 5.1L x 5.1W Centimeters |
| Item Type Name | filters |
| Manufacturer | china |
| Manufacturer Part Number | FF9147B |
| Model Name | SV128 |
| Model Number | FF9147B |
| Number of Items | 1 |
| Number of Packs | 1 |
| Photo Filter Effect Type | Polarizer |
| Photo Filter Size | 50.8 Millimeters |
| Photo Filter Thread Size | 48 Millimetres |
| Screen Size Unit of Measure | 2 Inches |
| Water Resistance Level | Not Water Resistant |
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