![]() Not all communities, not all home sites, and not all options and upgrades are included in this event. Offers, incentives, and seller contributions, if any, vary by community and are subject to certain terms, conditions, and restrictions. ORF files.*Offer, if any, is valid for new buyers who purchase a home in a participating community and deposit between 4/10/23 and 5/14/23, sign an agreement of sale, and close on the home. Hopefully the function is compatible with. Both of those problems are related to unintended patterns at the single pixel level, so it might work for your Olympus issue as well. The function was intended to reduce aliasing issues in cameras without blurring filters as well as to improve on Fujifilm X-trans “worm” issues. That might get you a cleaner edge on the individual frames without the mis-interpolated dark pixels. It looks for patterns and lines, and the edge of a star trail would certainly qualify. One thing you might try, since you are using Lightroom, is to use the “Enhance” function and try out their new demosaic algorithm. Has any of you done nice star trails using a camera that does not have an anti-aliasing filter? And the repeating pattern seems to align with the bayer matrix of the sensor. With further reading, I learned that my E-M1 mk2 camera does not have an anti-aliasing filter. On some longer exposure shots I can even see some dark dots in a single star trail (in a single exposure). I used Lightroom to process the ORF (raw files). The problem does not relate to the stacking. Hope you find workarounds to get some useful images. Holding back contrast and color saturation will also be a step in the right direction. Softening the image ever so slightly should give smoother star trails (would enlarge the file 200 %, soften gently and then resize to 100 %). Or not.Ī longer focal lenght (widening the star trails) might help. Thin lines at an angle relative to the pixel rows can be a tough challenge for the image processing in camera and in post.Ī different RAW converter might help. The artefacts seems to be limited to curved areas of the trails, the straight lines following the pixel rows look ok. Your camera has pretty small pixels and the short focal lenghts should deliver pretty thin star trails. I want to know if I can do something to prevent this before my next photo shoot. But I needed the full stacking to confirm it was not jus random noise. With careful analysis I was even able to find a dark pixel in the middle of a star in a single frame. I needed to pixel peep to understand that the dark pixels are not related to gaps or stacking. We see that all the dots are aligned in a grid. We see the individual dark dots (they may look like gaps at a distance but they are not)ģ00% zoom. ![]() ![]() We see a moire pattern (because of dark dots)ġ00% zoom. I pixel peeped to *understand* the problem, but it was already ugly even at 33%. I want to create large prints of my long star trails, and in dense star areas, almost every pixel out of 16 pixels (4x4 square) is dark, which means there are roughly 1 million dark pixels in my picture that creates an ugly mosaic/moire pattern. I would generally agree with your statement, but I disagree in this specific case because is it not random, but structured all over the place. If that looks good the image will be fine for any practical purposes. My pixel peeping strategy is to pixel peep at 50 %.
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