Celestron Omni 2X Barlow-Linse - 1,25" - 93326

I was worried about image quality with a cheaper Barlow, but this one actually keeps Jupiter sharp even at high power. The all-metal construction feels solid in the focuser, way better than plastic ones I've used before.

At 2x magnification, this lens gives my eyepieces a real boost without blurring the image, and the 1.25-inch barrel fits snugly in my focuser. The build feels solid and it threaded onto my filter wheel with zero wobble, which is more than I can say for cheaper options I've tried.

I was worried it'd be too plasticky for the price, but the all-metal body feels solid and the threads are smooth as butter. Jupiter's moons were noticeably sharper and more separated with this in the focuser.