For those eagerly awaiting the opportunity to be able to process Olympus OM-D E-M1 II raws, the latest version (4.4.2) of PhotoRaw has support, including for the 80 megapixel raws. AccuRaw and AccuRaw Monochrome support will follow in a day or two in version 2.5.1.
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New versions of PhotoRaw and AccuRaw became available on the App Store today with support for the new Canon EOS 5D Mark IV.
New to the Canon EOS 5D Mark IV is what Canon are calling ‘Dual Pixel Raw’. This mode uses the sensor’s Dual Pixel photo sites to effectively record two 30MP fames from a single exposure. The resulting file can be adjusted in Canon’s Digital Photo Professional Software to slightly (very slightly!) shift the point of focus.
The good news is that AccuRaw and PhotoRaw will correctly read both the conventional single frame and the new two frame ‘Dual Pixel Raw’ image formats. However, be aware that neither AccuRaw or PhotoRaw can use the dual pixel information to micro-adjust focus, etc. Only Canon's DPP software can do that.
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Good news - AccuRaw, AccuRaw Monochrome and PhotoRaw now have support for the compressed raw format that Fuji use in the new X-Pro2. This is thanks to Alexey Danilchenko and the folks over at LibRaw, who reverse engineered the format, and published the results in open source form.
The AccuRaw/PhotoRaw raw engine of course doesn't use LibRaw, and in fact is structurally different enough to LibRaw that LibRaw code can't be incorporated directly into it. However, the code published formed a good enough source of documentation that I was able to write a decoder module for AccuRaw/PhotoRaw in only a few days.
Thanks guys!!!!
On the topic of Fuji compressed raw support, I'm told (by a usually reliable source) that Adobe are actually using Fuji code to decode the compressed files - that's how they were able to have compressed mode support before anyone else.
BTW, the new version of AccuRaw/PhotoRaw also has some new camera support - the Sony A68, the Canon G7 X Mark II, etc9View comments
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Yes, AccuRaw and PhotoRaw now supports the Nikon 5, all ISO 3,280,000 of it. The new versions are already available on the App Store. Enjoy!Recent versions of AccuRaw and PhotoRaw have also added support for a slew of other cameras such as the Olympus Pen F, Canon EOS 80D, the Fuji X70, and the Fuji X-Pro2.Sadly however the Fuji X-Pro2's support is only for uncompressed raw files, not Fuji's new lossless compression. Right now, the compression scheme that Fuji have used is a mystery, at least to me. The compression scheme is clearly fairly advanced, as the compression ratio that's being achieved is better than you would expect from e.g., the lossless JPEG compression that Adobe use in the DNG format. Examination of the data itself hasn't helped - while the data appears to have what are probably compression dictionaries at the start, there don't seem to be any compression scheme specific signatures. Hopefully someone will work out what the scheme is soon, and I can add support.Until there is support for the Fuji compression scheme, there is a workaround: both AccuRaw and PhotoRaw will load DNGs as converted by Adobe's DNG converter tool from compressed RAFs.Updated - Both AccuRaw and PhotoRaw now support compressed Fuji raws.4
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LFI has recently published an article stating that the sensor in the new Leica M262 differs from that in the older Leica M240. This has generated a fair amount of comment on various forums because the M262 is, at least in principle, just a simplified version of the M240. Live view has been left out, no video, etc, etc.
I can't claim to know whether in fact the sensor is different or not. It would certainly be possible to have a simplified sensor - the various capabilities that have been removed certainly add complexity to the sensor. And generate heat, drain the battery, etc. However, making even small changes to an established sensor design is an expensive process, so the question is whether it actually made financial sense.
I have taken a look inside the DNGs produced by the M240 and the M262, and in as much as it relates to the sensor, the two files are identical. Of course, the pixel dimensions, etc are the same as you'd expect, but the most significant similarity is that the color matrixes are also identical. That makes it near certain that the dyes in the color filter array are the same. That in turn implies that the sensors are built on identical technology.
So, while there's no way to tell whether the sensor is "new" or not, the technology isn't new. As a result I'd predict that the actual imaging performance of the two cameras will be identical for all practical purposes. Which will perhaps be a bit of a blow for those hoping that "different" meant improved performance -- the M240 sensor is now several years old.1View comments
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