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Amazon.com : 1.25 Inch 2X Barlow Lens, Barlow Lens for Astronomy Telescope Monocular Eyepiece 31.7mm : Electronics
![Help with telescope. 10” Skywatcher Dobsonian. Using a 2x Barlow lens with either a 10mm or 25mm. I've even tried using the extender. My results are why you see in the pic, Help with telescope. 10” Skywatcher Dobsonian. Using a 2x Barlow lens with either a 10mm or 25mm. I've even tried using the extender. My results are why you see in the pic,](https://i.redd.it/8es3djgnebv31.png)
Help with telescope. 10” Skywatcher Dobsonian. Using a 2x Barlow lens with either a 10mm or 25mm. I've even tried using the extender. My results are why you see in the pic,
![Skywatcher 2X T-Threaded Barlow Lens – Optical Universe Scientific - Your Choice Of Optical Instrument Skywatcher 2X T-Threaded Barlow Lens – Optical Universe Scientific - Your Choice Of Optical Instrument](https://cdn.store-assets.com/s/16684/i/2094133.jpeg)
Skywatcher 2X T-Threaded Barlow Lens – Optical Universe Scientific - Your Choice Of Optical Instrument
![Barlow Lens 2X, Bysameyee 1.25 Inch Fully Multi-Coated Metal Barlow Lens with M42 Thread Camera Connect Interface for Telescope Eyepiece: Amazon.co.uk: Electronics & Photo Barlow Lens 2X, Bysameyee 1.25 Inch Fully Multi-Coated Metal Barlow Lens with M42 Thread Camera Connect Interface for Telescope Eyepiece: Amazon.co.uk: Electronics & Photo](https://m.media-amazon.com/images/I/51Y2sxTVMNL._AC_SX466_.jpg)