Join Seán Duggan for an in-depth discussion in this video Reducing chromatic aberration, part of Enhancing Night and Low-Light Photos with Photoshop.
…As an extension of the lens profile corrections, Adobe Camera and…Lightroom also allow you to apply a correction to reduce a common optical…artifact known as chromatic aberration.…Like the lens profile correction,…this is something that is best addressed at the raw processing stage.…So we'll take a look at the details of the hotel image again…to explore chromatic aberration and then I also have another shot of the moon that we…can take a look at where there's some chromatic aberrations showing up as well.…
I'm going to zoom up to 100% using the shortcut of Command >…Option > 0 on a Mac or Control > Alt > 0 on Windows.…And I'm going to hold down the space bar to get the grabber hand, and…scroll through the image until I get all the way over to the right side and…I'm going to zoom up even more, up to 200%.…So chromatic aberration shows up in images as, color fringing,…such as you see here, on the window in the background.…Typically, there's going to be a cyan fringe on one side of,…an edge, most likely a high contrast edge,…
In this course, photographer and educator Seán Duggan explores a range of post-processing techniques aimed at expanding your creative options for night and low-light photography—and even "shooting" stars. He'll begin in Camera Raw for general enhancements (white balance, tonal and contrast adjustments, and noise reduction) and then turn to Photoshop to capitalize on its Merge to HDR feature, which can create spectacular high-dynamic-range images. Last, he includes techniques specifically for star photography: stacking layers to create star trails, removing and replacing blurry stars, and using luminosity masks on photos of the Milky Way.
- Using neutral guides to set white balance
- Applying lens profile corrections
- Reducing noise
- Working with 16-bit and 32-bit HDR images
- Stacking layers and combining exposures
- Improving star photography