EXCERPT page containing first few paragraphs. 2022-01-27 06:50:42
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For in-depth information on infrared, see the diglloyd Guide to Digital Infrared Photography.
Lens coatings on the EF 100/2.8L IS perform fairly well in infrared. However, in the f/11 -f/16 range (and wider apertures under some conditions), there is a significant hot spot effect which can be troublesome.
For more on hot spots and how to mitigate them, see the Guide.
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Diglloyd DAP is DSLR-oriented, but also contains workflow and other topics. Much of the focus is on Canon and Nikon but also Pentax and Pentax medium format.
Special emphasis is placed on lens evaluation, focusing on Canon and Nikon and Sigma lenses, but with a few others like Rokinon/Samyang.
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