Thanks all for the kind words.
Martin, I find achieving perfect focus challenging. I remember your diffraction spike tip, but still finding it difficult. I will continue practicing and will aim to get the lowest HFR possible.
Ryan, I also noticed the slight overcorrection in the top left corner. This image was cropped, but I didn’t notice anything in the uncropped version. I will keep an eye on it. If it does need a mm or two shaved off, I could remove the thin ring on the coma corrector. Also, thanks for the dual band terminology correction.
Thanks again for the tips. Please don’t hesitate to go hard on me. It’s the only way to improve.
Clear skies,
Stéphane