I had an old Meade 140 2x barlow for a long time, and bought the TV 1.25" 2.5x Powermate based on recommendation. On the first night, A-B comparison with my barlow, the Powermate just blew away the barlow completely. Honestly, I just gasped the first time I used it. With Jupiter and 7mm Pentax XW, it was so uncanny how even though the magnification was greater with the 2.5x Powermate (vs. 2.0x barlow), the image was still significantly better - the planet was flatter, sharper and overall just better 'controlled'. The hype that the Powermate just 'disappears' (compared to the barlow) was totally justified - you can't go wrong.
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