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DNGs are different from the Jpegs?


hyper67

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I came back from the Leica dealer where I tested out the new M. Coming home and checking them on my MAC I noticed two things;

 

1. The color of the DNGs are different from the Jpegs...Jpegs more pleasing to my eye

2. When you open both in PS and toggle the off/on in the layers tab u will notice that they do not exactly align?!

 

Is this normal behavior?

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It doesn't sound strange. I don't have an M but have always found Leica jpeg colour to be different from the 'default' DNG colour (I've also always found it difficult to completely emulate the JPEG colour or B&W tones by adjusting the DNG in ACR or C1). Again with the second point, this sounds normal (at least for M8/9). M9 jpegs are 4 pixels larger in both dimensions than the DNG files. This might account for the apparent lack of perfect registration you are seeing (assuming the M is the same as M8/9 in this respect).

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The colour of the DNGs are different from the JPEGs ...

You bet they are—as DNG files have no colour at all. As a matter of fact, DNG files are not even images, strictly spoken.

 

To see a "DNG image," you need to feed the DNG data to a raw converter which will interpret the data and create an image for you to look at, including the colours. Use a different raw converter, and you'll see different colours. The colours are not in in the DNG file but are the result of an interpretation of the DNG data.

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You bet they are—as DNG files have no colour at all. As a matter of fact, DNG files are not even images, strictly spoken.

 

To see a "DNG image," you need to feed the DNG data to a raw converter which will interpret the data and create an image for you to look at, including the colours. Use a different raw converter, and you'll see different colours. The colours are not in in the DNG file but are the result of an interpretation of the DNG data.

 

Ha! To an old film Luddite like me that makes a digital image sound even more ephemeral. But it appears to work, and well too. :D

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