Sky-Watcher 2x De-Luxe Barlow Lens - 1.25 inch

A '2x' Barlow lens doubles the effective focal length of your telescope when used with an eyepiece. This means if you use a 25mm eyepiece, the combination will provide the view you would normally get with a 12.5mm eyepiece on its own.

This Barlow lens is designed for the standard 1.25-inch eyepiece and diagonal format. If your telescope uses 1.25-inch accessories, it should be compatible.

It is designed to work with any standard 1.25-inch eyepiece. However, very short focal length eyepieces (e.g., less than 10mm) combined with a Barlow can result in extremely high magnifications that are often limited by atmospheric conditions and may produce a dim, narrow field of view.

Yes, the De-Luxe version typically features a two-element lens design, which offers better chromatic aberration correction and image sharpness compared to simpler single-element Barlow lenses.

Barlow lenses can sometimes help maintain or improve eye relief when using very short eyepieces to achieve high magnifications, making the view more comfortable.

It depends on the eyepiece quality and desired magnification. A Barlow lens doubles the magnification of any eyepiece, offering versatility. However, some high-quality, short focal length eyepieces might provide a wider field of view and better correction than a Barlow combined with a longer eyepiece.

Ensure the Barlow lens and eyepiece are securely tightened with the set screws. Re-focus the telescope carefully. Check for dirt or smudges on the Barlow or eyepiece lenses.

This is normal as magnification increases. Ensure the Barlow is clean. For very dim objects, consider using a lower magnification without the Barlow or a brighter eyepiece.

Verify that both your eyepiece and diagonal are standard 1.25-inch accessories. This Barlow is not compatible with 2-inch accessories.