I mentioned in the previous post that when I stood on the Rio Grande Gorge Bridge, the winds were gusting, and I thought about camera shake. On the other hand, the mountain and treeline look excellent. The defocusing has enlarged the stars, and although they now look better with their sharper outline, the processing is not able to fix them entirely. That was probably true in 2012, but that same year also marked the arrival in force of “deep learning” – more on that later.Īlthough starting from Suppress Noise at 90, results were satisfying, I found the best to be obtained by pushing the slider all the way to 100, and then adding grain (0.25) to prevent the image from looking artificially smooth. He asserted that the resulting noise would make it impossible to estimate accurately the blur function for any algorithm. Indeed, back in 2012, I had communicated with the author of a deblurring app, and he explained that what tricked it was that the image was shot at ISO 1600, which at that time was about the upper limit of usability for a Canon camera. On the other hand, increasing “Suppress Noise” from its 50 default value to 75 yielded a notable improvement. Reducing “Suppress Noise” to 0 only made things worse. Before giving up on another seemingly useless piece of software, I tried to play with the sliders. Yet parts of the image were much improved. With the default settings, the results showed artifacts that made the sky appear reticulated. Shortly after Topaz Labs Sharpen AI was released, the first thing I did (notice the trial mode) was to try to run it on this image. Yet getting a second chance at photo stayed in the back of my mind despite concerns with carbon footprint. That far south you also need to have high solar activity to see the aurora. It’s hard enough to travel to the South Denali Viewpoint in winter and overnight there. This failure haunted me for months, if not years. Here is a 100% view of a portion of the original file, which was about 21 MP. Although the focussing error may escape detection on a web-sized image or even in the time-lapse video, it certainly wouldn’t go unnoticed in print. It certainly took many instances of the issue before I got into the habit of checking out the file at 100% on camera for important images, and yet I still sometimes forget.īack home, I tried every existing software to try to fix the images without success. One of the key lessons here is to review images in the field. However, when I pressed the shutter button, the camera tried to re-focus, and in the process misfocused beyond infinity. I focused the camera at infinity using the back button and expected it to remain focussed that way. However, I failed to exactly duplicate all the custom settings of my main camera, and in particular to disable AF from the shutter button. Shortly prior to that trip, I had bought a second camera body, a Canon EOS 5Dmk2, to use as a backup and time-lapse camera. I was rewarded with the awesome sight of the northern lights dancing over Denali. This meant sleeping in the car in the double-digit subzero (F) temperatures typical of the Alaska winter. Find out in this article what a game changer Topaz Labs Sharpen AI is.Īlmost 8 years ago, I spent two nights at the South Denali Viewpoint. It turns out that with recent progress in AI-powered software, blurry images may be very usable after all. However, when images required travel to faraway locations or captured rare conditions, I was reluctant to do so. How many times have you left a scene convinced that you got the photo “in the box”, only to find out upon looking at the file at 100% on the computer that it was unacceptably blurry? Some photographers advocate making generous use of the digital trash can when images are technically flawed.
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