SVBONY SV226 Filter Drawer Integrated Molding + 2 inch CLS Filter City Light

Description: Product Description . SV226 filter drawer adopts integrated CNC molding and anti-light leaking design . It can also use 1.25" & 2" specifications on the market. Double pair of magnets; compared with traditional screw rotation; magnet has stronger adsorption force; which is convenient for you to install and use. Two filter holders; standard 1.25" and 2" filter holder; plug and play; reducing repeated disassembly and installation steps in a dark environment. Compatible with 1.25”&2” filter installation; existing 1.25" and 2" filters can also be used; for beginners of photography; save the budget for changing filter sizes. CNC integrated molding; the advanced processing can assure the quality; provide more accurate; consistent results; you can use it with confidence. Lock screw; the locking function is helpful on adjusting the tension to eliminate the gap; which is a double insurance for you. M42-M48 adapter; camera side thread is male; filter mounts thread is female; you can use the adapter to coonect cameras of different specifications. Filter drawer thickness; the thickness is related to back focal length; back intercept affects the quality of imaging; it limits the use of accessories and optical path length. Use with telescope; connect the telescope to the focal reducer and drawer filter; then connect the adapter to the camera. The filter drawer can use with SV550,SV503 OTA or F9198F,F9198K camera. The SVBONY City Light Suppression broadband filter is designed to improve the visibility of various Deepsky objects. By selectively reducing the transmission of wavelengths of light pollutants, specifically those produced by artificial lightings including mercury vapor lamps, both high & low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow). Together with the highly transparent in main nebula emission lines at OIII(496nm and 500nm), H-beta (486nm), NII(654nm and 658nm), H-alpha(656nm) as well as SII(672nm), the filter is suitable for enhancing the contrast and details for both visual and photographic purpose at sub-rural area. Features: Multi-layers anti-reflection coating Non-cementing optical substrate coating Electron-beam gun evaporation with Ion-assisted deposition coating technology for durability and resistance to scratching, as well as stability on CWL (central wavelength) no deviation affected by temperature change. Planetary rotation system offers precision and homogeneity of coatings ensuring high value on transmission of pass-band and Optical density of off-band. Ultra-thin filter cell minimize vignetting by maximize possible Aerometal Material Precise CNC Machining Sand Blasting Process Black Anodized Finish Extinction Treatment to Prevent Reflection Laser Engraving No Fading 90% transmission of main nebula emission lines (i.e. Ha 656nm, OIII 496nm&500nm, SII672nm and H-beta 486nm). 0.1% transmission of off-band, specifically the major emission lines of artificial light pollution (i.e. Na 589nm, Hg 435nmand 578nm). Suitable for color CCD cameras and unmodified DSLRs CLS with wider pass-band than UHC and hence is more favored when observing under mild to moderate light pollution. Light pollution filter do not eliminate the effects of light pollution or increase the object ' s brightness. In many cases, they increase the contrast between nebula and night sky, not brightening the nebula. WARNING: The filters of SVBONY are not designed for sun observation. DO NOT LOOK AT THE SUN WITH SVBONY FILTER. You would be BLIND if you fail to observe the warning. Package Includes SVBONY 2"CLS Filter Sturdy Plastic Case about svbony

Price: 109.99 USD

Location: ShenZhen

End Time: 2025-01-10T02:54:53.000Z

Shipping Cost: 0 USD