Hot answers tagged dng
There is something particularly conceptually wrong with throwing away the stuff that comes out of your camera. If your camera shoots in DNG, then that's what you work with. If it shoots in RAW, the same. If it shoots in either, you have to figure out what the difference is in terms of metadata that is supported, as well as all of your workflow. When your ...
Pentax D645 K-x K-r K-5 K-5 II K-7 K-30 K-50 K-500 K-3 Q Q10 Q7 Q-S1 K-01 MX-1 K10D (u) K20D (u) K200D (u) K2000 (u) Models marked with (u) do not support creating compressed DNGs. These older cameras create DNGs that are larger than the equivalent Pentax-proprietary PEF raw files.
Your answer can be found at this forum site, but the short is, you will lose some EXIF information, the lens id in particular, but the normal EXIF will be there (IE, aperture, focal length, exposure time, flash firing).
Whatever you do, do not throw away your original RAW files. DNG is not a replacement for them. Perhaps your workflow requires you to convert into DNG's, but for the love of god do not throw away the originals. If you do, then one day you will find that you will want to use a piece of software that doesn't support the DNG format as input.
DNG can be a rather complex beast. The file format is similar to TIFF, in that it is not specifically an image format itself, but more of a container. A "normal" DNG image will store metadata, the primary image in TIFF format, and possibly a thumbnail image. Depending on how DNG is used by any given program, the reality may differ. It is possible to store ...
Ricoh Caplio GX100 GR Digital GR Digital II GR Digital IV Ricoh GR Ricoh GR II GX100 GX200 GXR
All image previews are stored as JPEG files of various sizes inside of a .lrprev file. The loading speed of the preview images will likely not change much if you switch to DNG. The benefit of DNG is that it is an open standard format, and can keep the metadata in the same file as the image data, which simplifies portability. On the flip side, you would incur ...
Casio EXILIM EX-FH100 EXILIM EX-ZR1000 EXILIM EX-FC300S EXILIM EX-ZR700 EXILIM EX-ZR710 EXILIM EX-ZR750 EXILIM EX-ZR800 EXILIM EX-ZR850 EX-ZR1100 EX-ZR1200 EX-ZR1300 EX-ZR1500 EX-ZR3500 EX-10 EX-100 EX-100F EX-100PRO EX-ZR3000
DNG files are based on the TIFF/EP standard, ISO 12234-2, (they're essentially bitmaps with extra metadata) so if you start out with an appropriate TIFF I/O library that will get you part way, but you'll need to fill in the extra data required by DNG, which could be tricky. Raw converters need to know more than just the pixel intensities. Other relevant ...
Disclaimer: this is what I recall from having read about the prospect of going all-DNG for file archives. I might be a bit fuzzy or off. DNG is a standard format, with specific properties. The raw files produced by a camera have a unique format, which does not precisely map to the DNG spec - camera manufacturers are being a bit cagey about file formats. ...
Leica Digital-Modul-R M8 M (Typ 240) Q (Typ 116) S2 Leica M Monochrom Leica M Monochrom (Typ 246) Leica X (Typ 113) Leica M-E Leica M-P
agreed on not throwing away the original raw; Many import systems allow you to embed the RAW inside the DNG, so it's there if you need it; I personally do that on all of my images. I use DNG primarily because that format includes the metadata sidecar as part of the DNG, where for RAW files, the metadata sidecar is generally a separate file. Bundling this ...
Adobe Adobe maintains a list of native DNG compatible cameras here (for the purposes of seeing what's compatible with Adobe Camera Raw) The list consists mainly of Casio, Leica, Pentax, Ricoh and several Samsung cameras. It might be worth checking the page however as more cameras are added and of course confirming with the manufacturer before making a ...
Fast Picture Viewer is $9.99 and works just fine on 64-bit Windows 7 (I'm using it myself). You can also install the 32-bit codec and then view the folder with Windows Live Photo Gallery, which will generate the thumbnails for you. Other applications, like Explorer, will then be able to use these thumbnails - but you'll have to reopen WLPG every time you ...
The DNG documentation is freely available from Adobe and they include an SDK, though I haven't checked the SDK for language options, very likely something like C or C++, but you never know these days... :) In any case, the specification is open and freely usable.
RAW is RAW. If you convert it to anything else, it is no longer RAW. Sure, you have more bit-depth than converting to an 8-bit format and you don't have an image yet (not all color channels are present at all pixels) but if you really want to keep your originals, you should keep your originals. Sorry if this goes against common lore but it can't be any other ...
I guess technically speaking, DNG (although it is called a raw file or raw file archive) is not really raw in the truest sense. A "RAW" file is one that is essentially a direct dump of data from a camera's image sensor and image processors (i.e. Digic 4 in Canon), without any format conversion or processing applied. Such raw files are tuned to the hardware ...
Partly. Some of the steps normally taken during demosaicing, such as setting black point, are performed when files are converted to DNG and can't be reversed later on. Other steps, such as interpolating the monochromatic luminance values of each pixel into RGB values based on the color mask characteristics of a particular sensor, are not. Converting an ...
You don't say which camera(s) you're using for the original RAW files, but in general when creating a DNG file on your computer, you've got the enormous processing power of your computer which can be used to drive the most sophisticated compression algorithms around. Compare this with your camera, which has much less processing power and can therefore use ...
The biggest advantage to me, is that it's an extra step in my workflow to convert my 5D2 raw files to DNG. That extra step translates into more time in the post processing step. I'm going through 20GB of photos I just took while in spain, and converting them to DNG before I got started with it, would be a pain. I could save the resultant images as DNG, or ...
Think this way: maybe in the near future Capture NX may have a nice interface. You start using it but all your original NEF files are gone. To my acknowledge Capture NX is one of the best sharpener for NEF files. Don't throw away your NEF files. I was in the same situation as you. I converted all my NEFs to DNG. You know, DNG is "universal", smaller files ...
The preview image tends to be used as a thumbnail in the computer, it can be used to quickly glance at a bunch of files and figure out which is the one you want. It's up to you, but I recommend keeping the preview image. It doesn't need to be full sized, but the small image should be worth it.
Benefits or disadvantages aside, you can't import JPEG as DNG in Lightroom (to my knowledge). If you import a JPEG file in "Copy as DNG" mode, LR will prompt an error dialog saying, in substance: "Non-raw files were not converted to DNG". What you can do, however, is select your JPEG file in LR, and export it as DNG, then re-import that DNG file. DNG is ...
There's one particular difference that I'm aware of: proprietary RAW formats contain complete data, while the DNG standard has a specific format, which may not match up to a RAW format. I'm aware some vendors, Nikon in particular, have been encrypting some of their RAW data so that it cannot easily be converted, if at all. As requested, I found a source ...
Fast Picture Viewer has an extensive pack for the low price of $9.99 and it appears to cover them all. They used to give the DNG one away for free (I'm using it), but I'm not sure if that is still the case.
All you need do is install the relevent codecs, which are available from Canon for CR2/CRW (32-bit only), Nikon for NEF (32-bit only), Olympus (32-bit only), Panasonic (32-bit only), Pentax (32-bit only) & Sony (32-bit and 64-bit) The hack to run the 32-bit version of Windows Explorer (even on a 64-bit OS) no longer works on Windows 7, in my experience. ...
Adding to jrista's answer, you can always embed your original RAW file to the DNG file (in the Preferences dialog, under the tab File Handling). This way you can keep your original RAW files. Or you keep them separated, it is up to you.
I think you should be able to do it using "exiftool" --- I tested on a Linux PC, via commandline, and with a Sony ARW image, so your mileage may vary --- I have no DNG to test with. The command is basically: exiftool '-previewImage<=myown.jpg' test.arw (the quotes are needed in Unix to prevent the shell interpretation of <=). I have a bit of ...
If you are up for it, Aptina provides documentation of many aspects of the products, (I think) intended for manufacturers of add-ons. But if you sign an NDA you can get access to the documentation library, where presumably you can learn what you need to write code yourself. See their FAQ.
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