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Canon EF 35mm f/1.4L

A nice performer in infrared, excepting the corners which are outperformed by the 24-70 f/2.8L even stopped down. (This is true in visible light as well). Although the hot spot test suggests problems, they don’t seem to materialize in some cases. At any rate, this lens is best used as a low light lens, in which case apertures up to f/5.6 yield excellent sharpness and minimal hot spot trouble.

Canon EF 35mm f/1.4L hot spots

Hot spots become an issue by f/5.6. Still, field tests indicate that quite nice photos can be obtained even at f/11.

Canon 35mm f/1.4L backfocus

Many photos with impact require a wide aperture (f/1.4, f/2, f/2.8). So it is of no small interest whether the 35mm f/1.4L can be made to autofocus accurately at f/1.4.

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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.

View an overview of infrared as well as filter spectral transmission plus examples from an optimal lens.

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