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Nikon D800-IR

Filtering a 715nm Nikon D800-IR to 830nm

This example using the Nikon D800 converted to 715nm infrared.

Converting a camera to infrared that allows false color rendition makes it a flexible tool, because a filter can be applied for “seeing deeper”: cutting off shorter wavelength infrared.

Filtration

As shown below, the filter on the converted D800 cuts off at 50% at 715nm.

Applying a B+W 093, the cutoff becomes 830 nm, eliminating a big chunk of short wave infrared as well as any lingering deep red. This results in a up to a 2-3 stop increase in exposure time, depending on the scene.

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Diglloyd Infrared Photography covers cameras and lenses for infrared photography.

The coverage explains all the issues involved in shooting in infrared, which do not change. It is not a review of any particular camera or lens, though many examples are included.

  • 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.

Spectral transmission of 715nm IR-cut filter on modified Nikon D800
Image courtesy of MaxMax.com
Spectral transmission of B+W 093 filter used for this comparison: 50% cutoff at 830 nm

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