That's a great M16 Jon. Lots of detail in the star queen.
The image is a little black clipped in the dark areas though. As for vignetting, there are a number of ways to flatten out the field depending on software. Photoshop has gradient Xterminator and a vignetting tool. Other software may have similar. I don't know what software you use.
Other than those points, keep on doing what you're doing as I think the colour and contrast are excellent.
|