Barlow lenses offer an easy, economical way to increase the magnification range of your eyepieces, and Celestron carries a number of these highly useful lenses. A Barlow lens doubles the magnifying power of your eyepiece by doubling its effective focal length.
The lens unit varies the power obtained with any given eyepiece while maintaining excellent image quality. Their precise corrections for spherical and chromatic aberrations at all photo-visual wavelengths result in sharp, high-resolution performance on telescopes of any optical design.
The RVO x3 barlow lens is a high quality fully multi coated lens with integrated t threads for attaching cameras directly to the top. The barlow lens is even filter threaded for attaching your favourite 1.25" filters.