Modern architecture in Utrecht, NL.
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Converted raw:
Amazing Circle version:
Museum “Beeld en Geluid” in Hilversum, NL.
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Converted and edited with DT and Gimp:
And as an amazing circle rendition with one of Darla’s scripts:
PS: before I forget, the perspective correction module when used together with lens correction in Darktable is so incredibly powerful! I’ve been using F/OSS software for over 15 years and never before had such powerful tools at my disposal. Especially the shot inside the museum was shot at a downward angle with a Tamron 17-50mm/f2.8 lens at its widest resulting in horrendous vertical and horizontal perspective coupled with the inherent weaknesses and lens errors and distortion.