1.25" 2x Barlow (TKA00597)

Pairing this barlow with my existing eyepieces gave me noticeably crisper views of Jupiter's bands than I'd gotten before. The all-metal construction feels solid in hand and the threads are smooth when attaching to my focuser. For the price, it's a solid step up from the cheap plastic barlows I was

The glass is noticeably cleaner than my generic barlow, with almost zero chromatic aberration even on bright planets. It threads smoothly into my filter wheel without any wobble.

Paired this with my planetary camera and the extra magnification really brought out surface details on Jupiter. Build quality feels solid, threads are smooth, and it fits snugly in the focuser without any play.