EXCERPT page containing first few paragraphs. 2021-10-21 00:47:01
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These examples show off general imaging performance of the Canon EF 85mm f/1.4L IS US.
Mt Dana, early morning
Mt Dana is a popular non-technical climb via the normal route; park near the Tioga Pass east entrance station just outside the park. An excellent trail heads out at 90° to the road from the entrance station.
I exposed this image for full detail in the snow, but I was not successful in getting Adobe Camera Raw to preserve the detail even with highlights at -100 and shadows at -100 without also making the image too dark. Adobe really does a poor job of offering facilities to deal with HDR images.
The Canon 85/1.4L IS is very sharp wide open in central areas, but high contrast edges (the snow patches are all fringed with magenta, confirming that are limits to the correction for longitudinal chromatic aberration present, not surprising since significant secondary longitudinal chromatic aberration exists and the two are closely related. Stop down to f/2 and the fringing seen here should clear up.
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