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Canon 70-300 f/4.5-5.6 DO IS USM

One sample tested briefly. Unsharp corners even at f/11, backfocus, and hot spots make this lens a non-starter for IR work.

Canon 70-300mm f/4.5-5.6 DO IS hot spots

Brief outdoor shooting showed strong hot spots. As backfocus and resolution appeared to be marginal, no further consideration was given to the lens.

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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.
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  • Image quality issues to be on the lookout for in infrared.
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