EXCERPT page containing first few paragraphs. 2019-05-20 04:44:41
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Unless you have very special needs, a screw-in filter is the way to go. However, internal filtration on a dedicated infrared camera is far more convenient than buying multiple filters, one for each diameter of lens thread. Specialized users (eg forensic, police, etc) might well have a need for filters that allow a very specific spectral regions to pass, but such needs have little to do with producing fine photographs.
Think through your needs carefully, because infrared filters can be up to $175 for 77mm models from a premium vendor such as B+W (Schneider), and up to $454 for a Hoya RM90 (get the B+W 093 instead). Consider buying a large diameter filter (eg 77mm), along step-up rings for lenses that have smaller filter sizes eg 58mm, 72mm, etc.
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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.