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Nikon 28-70mm f/2.8 (on 5D)
Ironically, a Nikon zoom produces superior results in infrared to both Canon L alternatives, in terms of hot spots and equal or better in sharpness. Especially when corners are considered, the Nikon lens trounces the 24-105 f/4L, and it is not bettered by the 24-70 f/2.8L. Furthermore, accurate manual focus can be achieved with the Nikon zoom, as it appears remarkably well corrected for infrared focusing.
Nikon 28-70 f/2.8D ED-IF AF-S 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.
- Monochrome vs color cameras.
- Post processing for monochrome.
- 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.