I use an ASI6200 camera for my deep sky photography. I have the opportunity to buy a 130GTX with the QuadTCC reducer.
I am looking for information and examples of images made with this material. I would like to see how the stars are in the corners of the image. Indeed, with the ASI6200, there is no tolerance.
For info, actually I us use a TOA130NFB and the TOA-35 reducer. The image circle is 44mm.
If in h-alpha, the elongation of the stars in the corners is acceptable, in luminance the deformation is too important.
That's why I'm looking to the 130GTX.
Thanks in advance for your help.