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I’ve the 1.5x extender that I use on my Fsq/tsa is parfocal with my eyepieces where as the Tak 2xbarlow 2 element requires inward focus but is a cheaper option.
The older shorty Barlow’s parks gs, celestron ultima, and Orion shorty plus are reportably as good as the new powermates and are a three element Barlow made in Japan.
I enjoy using both but I don’t think you can beat using an eyepiece by its own.
Last edited by Wilso; 18-07-2019 at 01:17 AM.
Reason: Add
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