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EXCERPT page containing first few paragraphs. 2023-06-03 17:25:51

Nikon D800-IR

Examples: Nikon D800

Conversion by

Spectral transmission

Infrared photography properly begins around 715nm, with the range of 715-760nm affording “false color”: the R/G/B photosites respond differently to infrared light (differential transmission). Starting around 760nm, all of the R/G/B photosites go transparent to infrared, thus the image becomes pure monochrome (the photosites all see the same luminance).

The human eye can actually see dimly out to ~900nm (possibly even farther, albeit very dimly), a fact which can be determined by looking directly into an infrared LED in a dark room.

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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.

Spectral transmission of 715nm IR-cut filter on modified Nikon D800
Image courtesy of
Variants color, gray available in full article
1/80 sec @ f/11, ISO 100, Nikon Capture NX2 conversion
Nikon D800-IR + Coastal Optics 60mm f/4 UV-VIS-IR APO Macro

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