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It is all about the data that is embedded in each image you take with the
D70, or any other digital camera. The D70Reader will extract that data in
readable form, from the image file. Photoshop also does this, but it also
likes to drop some of it on the floor! In using Photoshop CS, I was not
able to find a way to cut and paste the information. I could not do this, so
that I could send it in an email message, etc. I ended up transferring the
data by re-typing it. That is why I originally wrote the program.
Here is an example of EXIF data taken directly from the camera in a NEF
image:
| D70ReaderProgramVersion | 0.18 |
| Filename | DSC_0001.NEF |
| Make | NIKON CORPORATION |
| Model | NIKON D70 |
| Orientation | Horizontal (normal) |
| Software | Ver.1.02 |
| ExposureTime | 1/200 seconds |
| FNumber | 7.100000 |
| ExposureProgram | Auto |
| DateTimeDigitized | 2005:02:03 10:00:31 |
| ExposureBiasValue | 0.000000 |
| MeteringMode | Multi-segment |
| Flash | No Flash |
| FocalLength | 70mm |
| UserComment | |
| FocalLengthIn35mmFilm | 105mm |
| ISOUsed | 200 |
| Quality | RAW |
| WhiteBalance | AUTO |
| Sharpening | AUTO |
| FocusMode | AF-S |
| FlashSetting | NORMAL |
| FlashMode | |
| ISOSet | 200 |
| ToneCompensation | AUTO |
| LensType | G |
| Lens | 18-70mm f/3.5-4.5 |
| LensInfo | 40 01 0c 00 |
| ColorMode | MODE1a |
| LightSource | NATURAL |
| NoiseReduction | OFF |
| ShutterCount | 1766 |
| ImageOptimization | |
| Saturation | NORMAL |
| VariProgram | AUTO |
Here is the EXIF data after being processed by Adobe Photoshop CS:
| D70ReaderProgramVersion | 0.17 |
| Filename | DSC_0001.JPG |
| Make | NIKON CORPORATION |
| Model | NIKON D70 |
| Orientation | Horizontal (normal) |
| Software | Adobe Photoshop CS Windows |
| ExposureTime | 1/200 seconds |
| FNumber | 7.100000 |
| ISOSpeedRatings | 200 |
| ExposureBiasValue | 0.000000 |
| MeteringMode | Multi-segment |
| Flash | No Flash |
| FocalLength | 70mm |
| ExifImageWidth | 3008 |
| ExifImageLength | 2000 |
| FocalLengthIn35mmFilm | 105mm |
Notice all the data that is missing!
Now, Adobe Photoshop CS embeds XMP data for the above image, and the
D70Reader can dump it, along with the above data:
| D70ReaderProgramVersion | 0.18 |
| Filename | DSC_0001.JPG |
| Make | NIKON CORPORATION |
| Model | NIKON D70 |
| Orientation | Horizontal (normal) |
| Software | Adobe Photoshop CS Windows |
| ExposureTime | 1/200 seconds |
| FNumber | 7.100000 |
| ISOSpeedRatings | 200 |
| ExposureBiasValue | 0.000000 |
| MeteringMode | Multi-segment |
| Flash | No Flash |
| FocalLength | 70mm |
| ExifImageWidth | 3008 |
| ExifImageLength | 2000 |
| FocalLengthIn35mmFilm | 105mm |
| WhiteBalance | As Shot |
| DateTimeDigitized | 2005:02:03 10:00:31 |
| FlashMode | |
| FlashSetting | NORMAL |
| ColorMode | Unknown |
| Lens | 18.0-70.0 mm f/3.5-4.5 |
But, as you see, it is still missing some of the original EXIF data!
The D70Reader can dump the full XMP data stream:
// Dumping MetaXAP tree for "uuid:190794a1-8b6a-11d9-b307-da58010faa69"
http://ns.adobe.com/camera-raw-settings/1.0/
Version = "2.2"
RawFileName = "DSC_0001.NEF"
WhiteBalance = "As Shot"
Exposure = "0.00"
Shadows = "5"
Brightness = "50"
Contrast = "+25"
Saturation = "0"
Sharpness = "25"
LuminanceSmoothing = "0"
ColorNoiseReduction = "25"
ChromaticAberrationR = "0"
ChromaticAberrationB = "0"
VignetteAmount = "0"
ShadowTint = "0"
RedHue = "0"
RedSaturation = "0"
GreenHue = "0"
GreenSaturation = "0"
BlueHue = "0"
BlueSaturation = "0"
http://ns.adobe.com/exif/1.0/
ExposureTime = "1/200"
ShutterSpeedValue = "7643856/1000000"
FNumber = "71/10"
ApertureValue = "5655638/1000000"
DateTimeOriginal = "2005-02-03T10:00:31-05:00"
ExposureBiasValue = "0/1"
MaxApertureValue = "43/10"
MeteringMode = "5"
FocalLength = "70/1"
FocalLengthIn35mmFilm = "105"
ISOSpeedRatings : seq
*[1] = "200"
Flash
Fired = "False"
Return = "0"
Mode = "0"
Function = "False"
RedEyeMode = "False"
ColorSpace = "4294967295"
PixelXDimension = "3008"
PixelYDimension = "2000"
http://ns.adobe.com/exif/1.0/aux/
Lens = "18.0-70.0 mm f/3.5-4.5"
http://ns.adobe.com/pdf/1.3/
Creator = "Adobe Photoshop CS Windows"
ModDate = "2005-03-02T17:26:18-05:00"
CreationDate = "2005-03-02T17:26:18-05:00"
http://ns.adobe.com/photoshop/1.0/
History = ""
http://ns.adobe.com/tiff/1.0/
Make = "NIKON CORPORATION"
Model = "NIKON D70"
Orientation = "1"
XResolution = "300/1"
YResolution = "300/1"
ResolutionUnit = "2"
http://ns.adobe.com/xap/1.0/
CreatorTool = "Adobe Photoshop CS Windows"
ModifyDate = "2005-03-02T17:26:18-05:00"
CreateDate = "2005-03-02T17:26:18-05:00"
MetadataDate = "2005-03-02T17:26:18-05:00"
Format = "image/jpeg"
http://ns.adobe.com/xap/1.0/mm/
DocumentID = "adobe:docid:photoshop:190794a0-8b6a-11d9-b307-da58010faa69"
http://purl.org/dc/elements/1.1/
format = "image/jpeg"
// End of tree dump for "uuid:190794a1-8b6a-11d9-b307-da58010faa69"
But again, it is not all of the original EXIF data, from the original NEF file.
Now, the D70Reader gives you a number of options. You may not be interested
in any of them. But, some people will be. Here is a list:
Format:
d70reader [options] imageFileName
d70reader [options] *.NEF *.JPG
Options:
-h = this screen
-s = sort the standard output
-v = verbose (raw data)
-w = generate HTML table
-x = generate XML data tree
-c = generate Comma Separated Values (CSV) data
-js = generate JavaScript Array data
-j = extract JPG thumbnail image from NEF
-coc:n.n = set Circle Of Confusion (default = 0.0203)
-njf = create JPG FINE image from NEF
-cwb = use Camera WhiteBalance (with -njf)
-awb = use Auto WhiteBalance (with -njf)
-crgb = use Camera RGB (with -njf)
-noclip = don't Clip Colors (with -njf)
-br:n.n = set Image Brightness (default = 1.0) (with -njf)
-red:n.n = set Red Multiplier (default = 1.0) (with -njf)
-blue:n.n = set Blue Multiplier (default = 1.0) (with -njf)
-black:n = set Black Point (greater than 0) (with -njf)
-fd = fix the internal dates of an image file
-fdwo:n = fix the internal dates with minute offset
-rm = remove all EXIF data from JPG file
-re nefFile jpgFile = restore EXIF data to target JPG file
-ren:prefix = rename image file based on Shutter Count
-web = generate Photo Website
-cf:configFile = use alternate configuration file
-od:\outputDir\ = use specified output directory
The -s option will allow you to sort the data, before it is displayed to standard output.
The -v option will allow you to see the raw data (like the XMP data above).
The -w option will generate an HTML table of the data, that can be embedded
in a web site.
The -x option will generate an XML data tree of the data. This is useful
for only certain situations.
The -c option generates CSV data. This can be imported into a spreadsheet,
or a database, so that you can keep track of your image data.
The -js option will allow you to create JavaScript array data, that can be
used to create a web based slideshow of your images.
The -j option will extract the JPG thumbnail image from the NEF image file.
With the D70Reader, you can process a whole directory of NEF image files, in
a very short time, and extract the JPG images. The images will be
automatically rotated, for proper display. This means that you do not have
to shoot RAW + JPG anymore, and put more images on your CF card.
The above -j option has been modified to correctly place each data element in
the proper bucket, instead of all at the lowest level. This means that other
applications can now correctly read the EXIF data in the extracted thumbnail
images.
The -coc option allows you to fine tune the Circle of Confusion value used
in the Depth of Field calculation tags.
The -njf option will create a JPG FINE image file from a NEF image file.
With the D70Reader, you can process a whole directory of NEF image files, in
a very short time, and create the JPG images. The images will be
automatically rotated, for proper display. There are eight sub-options that
can be used to control the image output. These options are labeled to be
used with the -njf option. The created image files are placed in a new
directory called .\jpegfine. The original NEF files are not modified in
any way.
The -fd option will allow you to fix the internal
dates within the image file. This is helpful, if the user never
set the camera date and time, shot dozens of images, and now wants
to correct the problem. The created image files are placed in a new
directory called .\fixdate. The original files are not modified in
any way.
Like the -fd option, the -fdwo option will allow you to
fix the internal dates of an image file. Unlike the -fd option, it is not
controlled by a configuration file. Instead, you enter the number of
minutes that you would like the dates adjusted. To subtract time, precede
the number that you enter with a negative sign (-).
The -rm option allows you to remove all EXIF data from a JPG image. A label of
"NOEXIF_" is prepended to the image file name. The original image file is not
modified in any way.
The -re option allows you to restore the EXIF data that certain image packages
strip from their processed images. So, you can copy the original EXIF data
from the NEF/Raw image file into the processed JPG file. Now, you can have
your EXIF data, and your post-processed JPG image in one file! A new file is
created with a label of "EXIF" prepended just before the .JPG extension. The
original files are not modified in any way.
The -ren option allows you to rename the image file, based on the shutter
count tag, and user supplied prefix.
The -web option will generate a complete web site of your photographs from
within a directory. The text displayed on the screen is now controlled with
a configuration file. To customize the displayed text, just modify the text
in the file before generating the photo web site.
Links for downloading the program:
Windows XP Program Files
I hope this explains what this program is all about.
Jon Oman
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