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Converting RAW-Files from Modified Color Cameras to Monochrome DNG
For those who have converted a color camera to a monochrome sensor (see for example the Nikon D850 Monochrome by MaxMax.com), it’s important to process the image properly.
That is, the raw converter has no means to know that the raw file is in fact a monochrome file instead of a color one. If the capture is processed as a color file, inferior results with artifacts will occur, since the raw converter will use Bayer matrix demosaicing on a the monochrome pixels.
Enter LibRaw Monochrome2DNG, which takes the NEF or ARW or other raw format and turns it into a true monochrome raw file, in DNG format. It operates on whole folders or folder hierarchies and is highly efficient in using CPU cores—fast and easy.
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Diglloyd Infrared Photography covers cameras and lenses for infrared photography.
The coverage explains all the issues involved in shooting for monochrome and in infrared. It is not a review of any particular camera or lens, though many examples are included.
- Monochrome vs color cameras.
- Post processing for monochrome.
- Guidance on workflow for infrared, including black and white and channel swapping for false-color images.
- How infrared renders, and why certain spectral cutoffs matter: false color vs black and white.
- Image quality issues to be on the lookout for in infrared.
- Numerous lens evaluations in infrared.
View an overview of infrared as well as filter spectral transmission plus examples from an optimal lens.
