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DNG and JPEG?


hardcor

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Hi everybody,

 

Why can't i take DNG file photos only with my X1? And why is it that it have to be JPEG and DNG together?? By doing this arent you using a lot of memory on your cards and not sure why you would want to have 2 files? Can someone help me with this on what Leica means by the double images. Where are the pro and cons on this?

 

Thanks :confused:

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Hi everybody,

 

Why can't i take DNG file photos only with my X1? And why is it that it haVE to be JPEG and DNG together?? By doing this arent you using a lot of memory on your cards and not sure why you would want to have 2 files? Can someone help me with this on what Leica means by the double images. Where are the pro and cons on this?

 

Thanks :confused:

 

I asked your first question of Leica some time ago. I got the answer that "it was not possible to implement" that. Something in the internal architecture I suppose. Yes it uses memory and processing time, but sometimes it might be useful. If it bothers you set the jpeg to basic and it will reduce the storage need a little bit.

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..... If it bothers you set the jpeg to basic and it will reduce the storage need a little bit.

That is what I do and it can be handy at times when you are travelling and need to store files on a net-book without a raw converter installed.

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Hi All,

 

Personally I did not like this limitation much at first either but now I set the JPEG to basic and 3 MP which is only slightly larger space wise than the smallest setting 1.X (the exact size ebut it allows you to see the framing/focus properly on the screen. I actually find this quite useful for emailing images sometimes without having to process the RAW files.

 

I notice that the mandatory JPEG has been carried over to the X2.

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  • 2 weeks later...

Using only the DNG doesn't sound very good from an engineering perspective: just to display the screen invoked by the "play" button, the camera would have to read and process 16 big DNG files, which would be both slooooooow and energy consuming.

 

It looks like it's a better strategy to do that only once per picture, and store that light "full-size preview" somewhere in a small dedicated section of the big DNG file. Oh, wait, even better! Store it as a separate jpeg file: it'll need only a few bytes more than in the DNG and will double as something the user can use directly for his own purpose, should he have one for it! :)

 

The only case I can see where it would make sense to go only DNG is when shooting thetered, using another machine to process and display the pictures. But I believe that's not officially supported with the X1, so...

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  • 2 weeks later...

I know people complain about this, but for me this is no issue. Depending on where you are, you may WANT JPG images along with the raw images. Friends may want an immediate copy of a pic and you may be without your computer (with photoshop or acr on it) so you'd be stuck. Also, if you are without your computer, such as in another country as I was on my recent 6 week field trip for TheArtfulToad.com, you may want to use a friend's computer temporarily to view jpg images to decide which ones to delete from your chips or other storage! I ended up with over 3,000 images on that trip, but I had taken at least 4,000. Having jpg images to evaluate helped a lot. Also, there's this consideration. For any image for the Artful Toad, I want to compare my final (PP) jpg sent off to my printing service with the in-camera jpg. Also, one more thing, in in-camera jpg might even give you some ideas of what to do with YOUR image. Depending on your jpg in-camera settings, you get some, let us say in Spock's terms, "interesting" results which may help you with your PP. Dont worry about storage space, just buy more memory

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Another good reason to shoot both formats.

One of my backup strategies while traveling is to use an Epson P-5000 viewer.

It has 80 Gb storage and an excellent viewing screen.

Directly accepts CF and SD cards.

The problem is that this Epson does not support DNG file format. It will store the

file format but without the corresponding JPG there would be no image.

It's a good first step for initial sorting and rating.

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