- Explore Scientific
I used it in conjunction with an Explore Scientific 127mm. It gives excellent stars with an APS-C camera. There is some light fallout but it is taken care with flats very easily! I added an image of a 2 hour stack (calibrated with flats and flat darks). Sopeople can see the whole thing, it is uncropped. The dithering "leftovers" can be observed along the edges. This would be removed from any image in post-processing.
The stars are sharp in the corners when used with my Sky-Watcher 100mm APO but the vignetting is bad. Difficult to calibrate out.
I am truly impressed with the Stararizona’s Apex reducer. I am using it with an apo refractor 102mm 714mm focal length, f/7 that became a much faster f/4.55 and FL 464mm. I recommend it for anyone looking a faster scope with wider field. It made perfect, the marriage between my ASI183mm and my 102. Noticeably faster, super exciting.