SV226 filter drawer adopts integrated CNC molding and anti-light leaking design. It can also use 1.25" & 2" specifications on the market. Easier to install and pull out, but also provides effective installation protection, no need to worry about damage to the filter. Advanced CNC integrated molding processing, quality assurance. Thickness affects back focal length, which affects image quality and available accessory options. SV226 filter drawer can use with SV550 SV503 OTA or SV405CC SV605CC camera. The packaging is equipped with a plastic storage box to ensure that accessories around the filter drawer can be stored. The filter drawer comes with the M42-M48 adapter to resolve the thread compatibility issue. The interface can compatible with astronomical cameras of different specifications. The SVBONY 2" filter is required for all digital imaging with digital cameras; CCD cameras and an improved webcam; The UV-IR-Cut filter uses the latest coating technology to provide the great filter quality-and use Lifetime;With a DSLR camera;CCD camera or telescope; Unparalleled 99% average transmission rate;minimizing ghosting caused by infrared radiation;resulting in sharper images. True optical quality glass substrates and coatings. Multi-layer coating with no ghosting;very low reflection;no streaks and plane parallel substrates;to deliver the sharpest images possible. High quality aviation aluminum. The filter frame is made of super aerospace aluminum alloy;ensuring its durable and durable CNC trapezoidal pattern frame;adding friction;beautiful appearance;rich texture and design sense. Standard 2-inch filter threads for 2-inch eyepieces and other accessories. Blocks UV and IR band light in mixed light sources;reduces signal effects in the UV and IR bands;and makes image quality more vivid.