44 45
IMAGE-FILE SIZE AND COMPACTFLASH CARD CAPACITY
Image
quality
Image
size
2560 X 1920
(2048 X 1536)*
1600 X 1200 1280 X 960 640 X 480
RAW
Super fine
Fine
Standard
Economy
1 (2) – – –
1 (1) 2 (2) 4 (4) 16 (16)
7 (9) 17 (15) 28 (23) 80 (57)
15 (16) 33 (26) 50 (38) 115 (81)
22 (27) 46 (41) 67 (54) 135 (104)
Approximate number of images that can be stored on a 16MB CompactFlash card.
Image
quality
Image
size
2560 X 1920
(2048 X 1536)*
1600 X 1200 1280 X 960 640 X 480
RAW
Super fine
Fine
Standard
Economy
9.5MB (6.1MB) – – –
14.1MB (9.1MB) 5.6MB 3.6MB 0.96MB
2.1MB (1.6MB) 1.0MB 0.66MB 0.27MB
1.1MB (0.9MB) 0.6MB 0.41MB 0.2MB
0.65MB (0.59MB) 0.38MB 0.29MB 0.15MB
Approximate file sizes.
The number of images that can be stored on a CompactFlash card is determined by
the size of the card and the file size of the images. The actual file size is determined by
the scene; some subjects can be compressed further than others. The tables below list
approximate file sizes based on average file sizes.
* The figures in parentheses apply to the DiMAGE 5 only.
RECORDING MODE
Because super-fine and RAW data files are so large, the continuous-advance mode
(p.52) cannot be used with these image-quality settings. If the continuous advance is
used with either of these settings, only one image will be captured when the shutter-
release button is pressed and held. With the bracketing drive mode, the continuous
advance is canceled and the shutter must be released manually for each frame of the
bracket. When capturing super fine and RAW images, a delay of between thirty to forty
seconds can occur as the image is saved to the CompactFlash card; the monitors will
be blank and the access lamp will glow during that period.
In the RAW image-quality mode, the image size is set at full and cannot be changed.
The image size will not be displayed on the monitors. The digital zoom, enlarged
playback, and data imprinting cannot be used.
Unlike the other image-quality modes, RAW image data is unprocessed and requires
image processing before it can be used. To view the RAW data, the DiMAGE Image
Viewer Utility software is required. The utility software can reconstruct the image and
apply the same image processing controls as the camera. RAW data is saved as a 12-
bit file; the DiMAGE Viewer Utility software can convert this data into 48-bit TIFF files.
When the camera is set to RAW image quality, the camera’s image processing controls
alter the live image displayed in the EVF and on the LCD monitor in recording mode,
but have no effect on the stored image. When the image is played back on the camera,
image processing is not applied and the colors of the image can look unnatural. When
viewed on a computer using the DiMAGE Image Viewer software, the natural colors will
be restored.
A RAW image is stored with a file header that contains white-balance information,
changes made to contrast and saturation with the digital effects controller, any image
processing applied in a subject-program setting, and changes to sharpness. The color
mode has no effect on the final image; a raw image taken in the black and white mode
can be restored to a color picture. The changes in camera sensitivity are applied to the
RAW data; ISO values can be manually set to control noise (p. 62).
ABOUT SUPER-FINE AND RAW IMAGE QUALITY
(116 pages)
(116 pages)
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