![]() It can help highlight the subject of your effort and help reduce distracting stars. Here's the Veil Nebula again with a star reduction. So basically, all the stars are reduced with a click. Unlike some of the built-in Photoshop solutions, it works on the whole image at once. In areas where the stars are plentiful, like near the Veil Nebula, it can make a big difference. You can adjust the radius of your stars and the strength of the filter. You bring up the filter, and then adjust the stars to get the smaller ones to be pinpoints of light. There are some filters built into Photoshop that can help with this, but it's better to have something that is designed solely for stars that get bloated. While ideally, stars should be pinpoints of light, our atmosphere and even the optics we choose can enlarge the stars, taking attention away from the subject of your image. On top of that, GradientXTerminator will balance the color of your image.Ĭroman wasn't satisfied to only solve the gradient problem, so he went on to bloated stars. Then, bring up the plug-in and choose how much strength you want Russell's clever algorithms to use to repair the gradients. Invert the selection so you are selecting the sky, which is where the gradients are going to be. Open an image where uneven backgrounds are messing up your photo. Here's a wide shot of the Veil Nebula, with lots of gradients, and an especially bright one in the center.įixing this is quite simple. ![]() It's been through a lot of updates (all free so far) and it now supports my Apple Silicon computers. ![]() His solution was so good and so easy I'm still using it 20 years later. It fixed a big problem for astrophotographers, and that's correcting gradients (uneven backgrounds). I first bought a Croman plug-in back around 2000. The plug-ins have been so popular he's doing it full time now. One of the things that has made Photoshop so much more pleasant to use in processing astronomy images is a series of plug-ins from Russell Croman, a former engineer, chip designer, and software guru by trade, who has put those software skills to use making plug-ins that don't work with anything else but astronomy images. I think it has been slowly winning astrophotographers over from Photoshop, but it's got a big learning curve, and many photographers who already have lots of time logged with Photoshop may stay with Adobe. There are some dedicated programs for astrophotography. The light coming from these distant objects is dim, so it's going to be a while before those photons stack up. Star shooters know you can spend hours getting a good picture of a galaxy or nebula. I use a small wide field telescope that is easy to travel with, and I have a home observatory that houses a 12" scope that is designed only for photography.
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