Posts Tagged ‘lensflare’

Nikon: We’re Looking Into the ‘Unnatural’ Flare Issue Being Reported by D750 Owners

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A week ago, we reported that some owners of the Nikon D750 are reporting a strange and ugly dark band that appears at the top of the frame, interrupting lens flare when the camera is pointed at certain angles towards light sources. Nikon acknowledged the issue today and says that it’s currently looking into a fix.
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Nikon D750 Owners Reporting a Dark Band Problem That Causes Ugly Lens Flares

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The Nikon D750 full frame DSLR has been receiving fantastic marks from reviewers so far, but now an issue has popped up that threatens to damage the camera’s reputation. Photographers around the world are reporting a problem with their lens flares. At certain angles, an ugly dark band shows up across the top, separating lens flares from the edge of the frame.
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Simple Tutorial Shows You How to Change an Object’s Color in Photoshop

One of the basic Photoshop skills that many beginners want to learn early on is how to change something’s color in one of their images (be that an object or someone’s eye color). Well, you’re in luck, because Aaron Nace and Phlearn are here with a simple tutorial that will show you how to do just that, and do it well. Read more…

iPhone 5 Purple Flare: The Problem is the Purple, Not the Flare

An update on the iPhone 5 and “Purplegate“: DPReview has published a pretty in-depth review of the iPhone 5 as a camera — a review that has 1 of the 5 pages dedicated to examining the purple haze issue that has been widely discussed in recent days.
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Researchers Come Up With Quick Way of Generating Realistic Lens Flare

Artificial lens flare is an important part of making certain computer generated scenes look realistic, but up to this point creating realistic lens flare has been a task that requires a good deal of processing power. Now, researchers have come up with a way to simulating lens flare quickly and accurately, taking into account a large number of physical factors that cause the phenomenon:

The underlying model covers many components that are important for realism, such as imperfections, chromatic and geometric lens aberrations, and antireflective lens coatings.

The video above discusses how the technology works, and also touches on the science behind lens flares. The method is patent-pending, and will be presented later this year at SIGGRAPH 2011.

Physically-Based Real-Time Lens Flare Rendering [Max-Planck-Institut Informatik]