To complement the very popular and well regarded X-Cel LX eyepieces (see also our recent blog on them here), Celestron offer 2x and 3x barlow lenses to help increase (doubling or tripling) the magnification of these (and other) 1.25″ eyepieces. The barlow lenses feature very high quality fully multi-coated apochromatic optics resulting in excellent colour correction and contrast. A benefit of using a barlow is that you can achieve a higher magnification without affecting (reducing) the eyepiece’s eye relief (higher power / short focal length eyepieces often have less eye relief than longer focal length ones).
The first thing you will notice about these barlow lenses is that their design – their look and feel – match that of the X-Cel LX series eyepieces. They have the black anodised housing with orange highlights and writing, and also have same type of centralised wide tread-style rubber pattern around the mid-section for improved grip even when wearing gloves during the cold season. The barlows are compact in size, and adding one of these to your optical train will not affect balance as they are light at only about 170g. Each barlow also features a non-marring brass compression ring for safely and securely clamping your eyepiece or other 1.25″ accessory without scratching or damaging the eyepiece/accessory barrel. The barrel of the barlow lenses are threaded to accept standard 1.25” filters which means you can use, and view through, the same filter when you swap eyepieces.
These barlow lenses are an ideal addition to help expand the range of magnification you can get with your existing eyepiece collection. Also, don’t forget that in addition to visual use, you can use a barlow lens (without an eyepiece) to amplify the image of the Moon and planets when using an imaging camera such as the Celestron NexImage10. Simply insert the camera’s 1.25″ nosepiece into the eyepiece opening of the barlow and attach to a telescope.