I have been struggling using the L-Enhance filter with @focus3 via TheSkyX. I'm using a Pegasus Astro Focus Cube focuser with my SR 70mm f/5 APO quadruplet and cannot get it to focus using @focus3. When I run the focus routine it shows numbers which indicate decent focus (2.0 - 2.5 FWHM) but when I take an image the actual FWHM value is 8 - 12 and obviously out of focus. @focus3 adjusts the focus exposure time as it should and the routine seems to run correctly without error but never gets good focus. I have used a bright star for focusing as well and it does the same thing...good numbers in the focus routine but bad actual focus.
I do not have this problem without the filter and can consistently get good focus results using @focus3 and TheSkyX with this setup, just not with the filter.
Any suggestions or advice would be welcome.