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Canon EF 24mm f/1.4L v1
One loaner sample tested briefly showed very poor sharpness at even modest distances from the optical center, and appeared to have fairly strong hot spot issues. This lens has gotten mixed reviews; I once had a very good sample [example] which I unfortunately sold, thinking I was going to stick with Nikon equipment.
Canon 24mm f/1.4L hot spots
I shot this lens briefly outside the camera store, and that brief shooting suggested troublesome hot spots.
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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.
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- Numerous lens evaluations in infrared.
View an overview of infrared as well as filter spectral transmission plus examples from an optimal lens.