SPECIFICATIONS
| Model | F9131A | F9131B |
| Size | 1.25'' | 2'' |
| thickness | 1.85mm | 1.85mm |
| Type | Ultra High Contrast Filter (UHC Filter) | |
| Thread | Standard M28.5*0.6 | Standard M48*0.75 |
ThaiExcite
88/41 Kanlapapruek Road, Bangkae, Bangkae, 10160, Bangkok, ประเทศไทย
ติดต่อสอบถาม: 081-239-3299
อีเมล์: info@thaiexcite.com
URL: http://www.thaiexcite.com/SVBONY-UHC-Broadband-Light-Pollution-Reduction-Filter-1.25-.html
ฟิลเตอร์ลดแสงรบกวน SVBONY UHC Broadband Light Pollution Reduction Filter, 1.25"
รายละเอียด
ฟิลเตอร์ลดแสงรบกวน SVBONY UHC Broadband Light Pollution Reduction Filter, 1.25"
- Designed to selectively reduce transmission of certain wavelengths of light;especially those produced by artificial light
- Cuts mercury vapor and both high and low pressure sodium vapor lights, unwanted natural light caused by neutral oxygen emission in our atmosphere
- Sky background is darker and contrast of emission nebulae are noticeably improved
- Perfect filter for viewing nebula from light polluted skies or for boosting the contrast of nebula from dark sky sites
- Can be used not only for celestial observations but also for astrophotography
- Great for city and suburban observations
- Standard filter thread for standard 1.25" eyepieces and other accessories
- Optical glass lens in aluminum frame. Comes in a sturdy transparent case
About SvBony
Svbony started operation in 2009 as a manufacturer of astronomy and sports optical accessories, based in Shenzhen, China. For astronomy, Svbony offerings include a wide range of telescope parts and adapters for both visual and astrophotography. Svbony emphasize on good product quality at affordable prices, and has a distribution network across the world, with US/AU/UK/ES/DE/IT/FR oversea warehouses. Amateur astronomers world-wide recognize Svbony products to be of excellent value. Svbony also has one of the most varieties of hardware adapters for astrophotography - you will likely find a solution to a hardware connection problem you have.