HowTo? Determine whether highlights blown in ETTR RAW file? Need to "zero" all ACR settings?

Started Oct 13, 2012 | Questions thread
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l_d_allan
l_d_allan OP Veteran Member • Posts: 4,755
Re: HowTo? Determine whether highlights blown in ETTR RAW file? Need to "zero" all ACR settings?

Since the OP, I've become aware of the RawDigger utility, which seems to display actual 14-bit values from my Canon 5dm2 sensor.  I'm still a RawDigger newbie, and am unclear how to intrepret the values it shows.

I did a 1/3rd stop progression of images from a GMB-like Datacolor SyderCheckr + SypderCube  from under-exposed to over-exposed (increasing the exposure time). RawDigger seems to indicate that the pair of Green channels are being blown / over-exposed sooner than I would expect from LCD blinkies, but that may reflect ignorance on my part. I've posted a question to the RawDigger forum.

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Panasonic Lumix DMC-TZ3 Panasonic Lumix DMC-FZ47 Canon PowerShot S110 Canon EOS 5D Mark II Canon EOS 600D +28 more
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