What is a Digital Negative (DNG)? Digital Negative (DNG) is an openly published raw file specification that stores the “raw” pixel data captured by the digital camera sensor before it has been converted to JPEG or TIFF along with standard EXIF metadata, date, time, camera used, and camera settings. This format is freely available for other softwareand hardware vendors to support. What is the Adobe (DNG) Converter? The Adobe DNG Converter enables you to easily convert camera-specific raw files from the supported cameras listed below to a more universal DNG raw file. What is a “raw” file? A raw file contains the “raw” data captured by the digital camera sensor before it has been converted to JPEG or TIFF. Cameras that create JPEG or TIFF filesprocess (and in the case of JPEG files, compress) the sensor data. When working with raw files, the file is not compressed or processed in the camera—instead, our software gives the user complete control over the conversion settings. For example, white balance is not applied to the raw file but is stored with the file so the software can default to the originally intended setting. Otherinformation contained in a DNG file includes standard EXIF metadata (just like in JPEG files), date, time, camera used, and camera settings. Benefits of raw files Some of the benefits of shooting raw include: • • • • • • Smaller files than uncompressed TIFF Does not have the artifacts of compressed JPEGs Many key camera parameters, such as white balance, can be modified even after the image is captured Youhave complete control over conversion settings rather than letting the camera decide Access to 16-bit data for greater detail and fidelity Flexibility of converting a single file using multiple conversion settings
Why convert to DNG files? Unlike most manufacturer-specific raw formats, the Digital Negative is an openly published specification that not only is supported by Adobe, but is alsofreely available for other software and hardware vendors to support. Consequently, it can be a safer file format to use for long-term archival purposes. Archiving your file as a digital negative eliminates worries that the raw file will no longer be readable once the camera that created it becomes obsolete. The Digital Negative specification allows for not only all of the pixel information stored incurrent raw formats, but also for all of the additional, proprietary metadata that many manufacturers include. The Adobe DNG Converter may in some cases ignore some of this proprietary metadata, and only include the basic information necessary for creating a high-quality image file. The original raw file, however, can also be embedded in the new DNG format to ensure proprietary metadata from themanufacturer is not lost.
Supported Cameras Support for the following cameras has been added from DNG 2.4 to 3.0.
• • Fujifilm FinePix S3 Pro Sony DSC-V3
Below is a complete list of supported cameras in this 3.0 version. Canon
EOS-1D EOS-1Ds EOS-1D Mark II EOS-1Ds Mark II EOS 10D EOS 20D EOS D30 EOS D60 EOS 300D (Digital Rebel/Kiss Digital) PowerShot 600 PowerShot A5 PowerShot A50PowerShot Pro 1 PowerShot S30 PowerShot S40 PowerShot S45 PowerShot S50 PowerShot S60 PowerShot S70 PowerShot G1 PowerShot G2 PowerShot G3 PowerShot G5 PowerShot G6 PowerShot Pro70 PowerShot Pro90 IS
DiMAGE A1 DiMAGE A2 DiMAGE A200 DiMAGE 5 DiMAGE 7 DiMAGE 7i DiMAGE 7Hi Maxxum 7D (North America) DYNAX 7D (Europe) Alpha 7 (Asia)
Valeo 6 Valeo 11 Valeo 22
D1 D1H D1X D100 D2H D70 Coolpix 5000 Coolpix 5400 Coolpix 5700 Coolpix 8700
E-10 E-1 E-20 C-5050 Zoom C-5060 Zoom C-8080 Wide Zoom
FinePix F700 FinePix S5000 Z FinePix S7000 Z FinePix S2 Pro FinePix S20 Pro FinePix S3 Pro
DCS 14n DCS Pro 14nx DCS720x DCS760 DCS Pro SLR/n