Trying something new here, the CaK filter receives a f28 beam, while the chip receives a f40 beam following the use of a 2x barlow nosepeice on the camera. I'm not convinced with this shot, other than a hotspot of brightness the quality reading of the image is much lower than I am used to getting. The image looks soft too. Could be the seeing wasn't up to it or more likely the barlow is introducing spherical aberration. I will persevere with this but my gut instinct is that I much prefer images taken at f28.