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This is my first shot of M31 that I'm happy with it.
In earlier attempts with the 135mm lens, I also took flat shots. These tended to make the vignetting worse. I may have done something wrong. For the present image, I left them out and eliminated the vignetting with SIRIL's background extraction.
It took several stacking attempts with different settings until the present result came about. I am very satisfied with my new Samyang 135mm F2. However, the lens is difficult to bring into focus at F2. And that despite the Batinov mask. Or it has shifted during the night due to temperature fluctuations. I only had a UV filter screwed on.
Description: less stretching
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| Image of the day | Top pick | Top pick nominations | Total submitted | |
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| Image of the day | Top pick | Top pick nominations | Total submitted | |
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