Olympus Camedia C-765 Zoom4.0 megapixels, a sharp 10x zoom lens, tons of features, and an affordable price!<<Camera Modes & Menus :(Previous) | (Next): Video, Power, Software>> Page 10:Image Storage & InterfaceReview First Posted: 06/16/2004 |
Image Storage and Interface
The
C-765 stores images on xD-Picture Cards, and comes equipped with a 16MB card.
The C-765's file naming protocol includes the month and day at the beginning
of the file name, and provides the option of numbering images progressively
from one card to the next, or of resetting the naming sequence for each card.
The camera lets you write-protect individual images from accidental erasure
through the Playback menu. (Note that individually protected images can still
be erased by a card format operation).
The C-765 can store images in both uncompressed TIFF and compressed JPEG file
formats. JPEG compression levels include Super High Quality (SHQ), High Quality
(HQ), and Standard Quality (SQ). No less than seven image sizes are available,
with a variety at each quality setting. Resolutions include 3,200 x 2,400 ("Enlarge"
size, produced by interpolating up from the 2,288 x 1,712 pixels of the CCD);
2,288 x 1,712; 2,288 x 1,520 (3:2); 2,048 x 1,536; 1,600 x 1,200; 1,280 x 960;
1,024 x 768; and 640 x 480 pixels.
The myriad size options can be assigned to the camera's TIFF, SHQ, HQ, SQ1,
and SQ2 quality levels via the Shooting menu, as shown in the table below. (Green
table cells indicate image size options that can be assigned to each named quality
setting.) Whatever image size/quality options are assigned to the five named
quality settings can be quickly selected either by the "shortcut button"
(see the earlier description of the user interface) or via the record setup
menu. The second table below shows the approximate size and compression ratio
of each of the 750's size/quality setting combinations, along with how many
of each image size can fit on the included 16MB memory card.
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Size Options |
(Interpolated) |
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Resolution/Quality 16MB Memory Card |
(TIFF) |
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| Enlarge Size 3,200 x 2,400 |
Images (Avg size) |
N/A | 2 6,400KB |
8 1,882KB |
| Approx. Compression |
N/A | 4:1 | 12:1 | |
| 2,288 x 1,712 pixels |
Images (Avg size) |
1 11.8MB |
5 2,909KB |
16 1,000KB |
| Approx. Compression |
1:1 | 4:1 | 12:1 | |
| 2,048 x 1,536 pixels |
Images (Avg size) |
1 9.4MB |
8 1,882KB |
20 1,000KB |
| Approx. Compression |
1:1 | 4:1 | 12:1 | |
| 1,600 x 1,200 pixels |
Images (Avg size) |
2 5.8MB |
11 1,455KB |
32 500KB |
| Approx. Compression |
1:1 | 4:1 | 12:1 | |
| 1,280 x 960 pixels |
Images (Avg size) |
3.7MB |
941KB |
323KB |
| Approx. Compression |
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pixels |
Images (Avg size) |
2.7MB |
604KB |
209KB |
| Approx. Compression |
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pixels |
Images (Avg size) |
0.9MB |
242KB |
97KB |
| Approx. Compression |
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The C-765 comes with interface software and cables for both Mac and Windows computers. It employs a USB interface for high-speed computer connection, and implements a "storage-class" connection. This is what Olympus refers to as their "USB Auto-Connect" function, which lets you connect the camera directly to a Windows Me, 2000, or XP computer, or a Mac running OS version 8.6 or later, without the need for driver software. Download speed is quite fast, but not as quick as many current models with high-speed USB 2.0 interfaces. I clocked the C-765 at a download speed of 759 KB/second to my 2.4 GHz Sony VAIO computer, running Windows XP. (Cameras with slow USB interfaces run as low as 300 KB/s, cameras with fast v1.1 interfaces run as high as 600 KB/s. Cameras with USB v2.0 interfaces run as fast as several megabytes/second.)
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