EXCERPT page containing first few paragraphs. 2024-05-02 01:41:10
UA_SEARCH_BOT_compatible_botmozilla/5.0 applewebkit/537.36 (khtml, like gecko; compatible; claudebot/1.0; +claudebot@anthropic.com) @ 3.137.187.233
For full access, subscribe here. Or click title to login. 
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.
Article continues for subscribers...
Diglloyd Monochrome is by yearly subscription. Subscribe now for about 8 cents a day.
BEST DEAL: get full access to ALL 8 PUBLICATIONS for only 68 cents a day ($249.95)!
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.
Image courtesy of MaxMax.com
