Hi all, I am looking at the APM 2" coma-correcting telecentric 1.5x barlow as a way to increase the focal length of my new TS-Optics 6" f/4 UNC newton. Are there any experiences with this barlow? Especially for imaging?
If it works like it should, it can effectively replace my 6" ritchey-chretien with 0.67x reducer. Both configurations will give me around 900mm f/6. The big advantage of using one scope is that I can use the benefits of my newton. It has an upgraded focusser and carbon fibre tube, compared to the RC. And I can keep my motorfocus attached, where I have to swap it now when I want to use another scope.