M81-M82-1.5x-Extender-Test

600s test shot using the FSQ-85 1.5x ED Extender on an STL-11K / Paramount ME. Seeing was horrid at 2/5 and it was windy. The corners look pretty good. Some brighter stars have a weird starburst pattern around them. I'll have to decide if this is acceptable. This makes the scope a 1630mm f11. Dark applied. No flats so the vignetting is visible.