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G7X II - RAW into Lightroom question

Started Apr 23, 2019 | Discussions thread
saaber1 Senior Member • Posts: 2,164
Re: G7X II - RAW into Lightroom question

peterh337 wrote:

Thank you for the explanation. I sort of knew that a raw file contains a camera profile of some kind, otherwise displaying it would be meaningless. But I expected the TIFF file to not be modified by this conversion.

Is there a CR2 to DNG converter which preserves EXIF and works with the G7X CR2?

EDIT: I have just exported some contrasty CR2s via the Canon sw (Digital Professional 4) to both 8 bit and 24 bit TIFFs and cannot see any difference whatsoever, even at 1:1 between them, in terms of anything and especially how much information can be extracted from shadows, or from highlight suppression.

The G7X is nothing like my Pentax K1 whose "shadow extraction capability" is awesome. Really the G7X is quite a bit better than my Samsung S7 phone, which is why I bought it. There is the optical zoom too of course...

Upon export to "95% quality" jpegs from Lightroom (this is my normal process) I see absolutely no difference in the jpegs. The difference in file size ranges from 1% to 10%, which on a jpeg is nothing.

But the weirdest thing is that EXIF is preserved in both 8 bit and 16 bit TIFF! It looks exactly the same!I can dropbox some pics if anybody wants to see them. I don't want to post the db link because that will get my db account pulled

I have also re-run the test with the options in the screenshot I posted earlier disabled, and it makes no difference. This could be because sharpening etc is disabled in the camera, although I have not yet found where those settings are. I am not really interested in image enhancement since jpegs from a decent camera don't need any...

I'm not following you. They should look exactly the same. All you are doing is converting the RAW and applying the camera's JPEG settings. That is exactly the same thing that the camera is doing for it's jpeg embedded in the raw file. The whole purpose of shooting RAW is so you have all the data to do post processing. If you only want the JPEG output why not just shoot in JPEG?

Maybe we need to review a few terms. Raw file is the RAW data file collected by the camera without any settings applied (i.e. no contrast, saturation, etc. etc.). The purpose of shooting in RAW is to be able to enhance the image via post processing. Think of it like film. If you shoot a polaroid, that is like shooting in JPEG. You have a printed, finished image that you can't change much. If you shoot film you have a negative that the then needs to be developed. The Raw file is like the negative. Then the developer adds any changes such as burning, dodging etc. and develops it to get the final print you want.

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