The barlow increases the magnification of any 2 inch or 1.25 inch eyepiece by two and a half times
Fully Multicoated Optics with 4-element lens system; hard-anodized aluminum barrel is threaded to accept 2 inch filters
2.5x Magnification with anodized Aluminum Housing; 2 inch Barrel Diameter; a 2 inch to 1.25 inch adapter is included; allows the use of both 2 inch and 1.25 inch eyepieces
It fits all rear cells of Schmidt-Cassegrain telescopes equipped with a big 2 inch focuser and can use with refractor telescopes with not included SCT adapter which you can find in our store; The 2 inch diagonal features dielectric coatings with 93 percent reflectivity across the visible spectrum and a 1/10 wave mirror for bright and true images
Allows you to take advantage of the wider field of view provided by two inch eyepieces; dielectric coatings are more durable than regular or enhanced aluminum coatings so you will enjoy years of excellent performance from this product