Dpreview: how Panasonic’s DFD gamble may yet pay off

Panasonic is getting a lot of criticism for it’s DFD autofocus system. While it works pretty well in stills mode it’s still sometimes frustrating to use in video. But Dpreview seems to be pretty optimistic about the DFD future:

The updates in the S5 show us a couple of things. Firstly, that Panasonic is well aware of the criticisms being leveled at its cameras and is continuing to fine-tune its software to squeeze everything it can out of the current hardware.

But, more significantly, the improvements we’re seeing when shooting stills and when using AF-C during bursts of stills in particular suggest that some of the downsides we’ve seen in the past aren’t necessarily inherent flaws of the DFD concept. Instead they’re aspects that can improve as sensor readout and processing power improve. You don’t need to be a semiconductor physicist to recognize that improvements in those areas are always coming.

In principle, in the long run, staying committed to an AF method that gets better as hardware gets faster may prove to be a better choice than an approach that trades-off light capture for AF performance. But the S5’s performance, particularly in video, shows DFD is not there yet. The risk for Panasonic is whether these fast-readout sensors and powerful processors arrive before the majority of full frame buyers have already committed themselves to other camera systems.

There is also one fact to mention: Not having phase detection pixels on the sensor gets rid of the sometimes annoying “stripe” artifact.

Robin Wong: Why Is Olympus JPEG Superior?

Robin Wong:

There are some secret sauce in Olympus JPEG in camera processing, many reviewers including large sites like DPReview has praised Olympus since many years ago for getting the JPEG right, and even went as far as claiming other manufacturers can learn a thing or two from Olympus. I share some of the interesting facts about Olympus JPEG, featuring Fine Detail Processing to achieve greater image sharpness and mitigate Moire problems, adaptive sharpening algorithm based on lens attached, sharpness loss compensation for diffraction and many more innovative JPEG goodness that squeezes the best out of your Olympus cameras. I also share some tips on how to optimize Olympus JPEG files. Even if you are a RAW shooter, you may want to pay attention because JPEG in camera can affect your photography workflow too, even if you shoot purely RAW.
0:42 – How understanding camera JPEG can improve RAW shooting?
1:53 – When and why shoot JPEG?
2:43 – Why is Olympus JPEG Superior?
7:01 – Optimize Olympus JPEG