'Picky Details' for the Konica Digital Revio KD-400Z Konica Digital Revio KD-400Z digital camera
(Timing, Power, and Storage Info)
Timing
I measure both cycle times and shutter delay times, using a test system I designed and built for the purpose. (Crystal-controlled, with a resolution of 0.001 second.) Here are the numbers I collected for the Konica Digital Revio KD-400Z:
NOTE: My qualitative characterizations of camera performance below (that
is, "reasonably fast," "about average," etc.) are
meant to be relative to other cameras of similar price and general capabilities.
Thus, the same shutter lag that's "very fast" for a low-end
consumer camera might be characterized as "quite slow" if I
encountered it on a professional model. The comments are also intended
as only a quick reference: If performance specs are critical for you,
rely on the absolute numbers to compare cameras, rather than my purely
qualitative comments.
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(secs) |
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| Power On -> First shot |
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Konica startup screen appears and lens extends. Faster than average.
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| Shutdown |
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Lens retracts. Slower than average.
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| Play to Record, first shot |
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Time until first shot is captured. Pretty fast.
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| Record to play |
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Time to display a large/fine file after capture. Pretty fast.
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| Shutter lag, full autofocus |
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First time is at full wide-angle, second is full telephoto. Quite a bit slower than average. (Average is 1.0 seconds to a bit lower.) |
| Shutter lag, prefocus |
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Time to capture, after half-pressing shutter button. Average. (Average is about 0.3 seconds)
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| Cycle Time, max/min resolution |
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First number is for large/fine files, second for small/basic images. Times are averages. The camera displays an auto review of each shot, which can be canceled. A bit slower than average, these days. |
Overall, the Konica KD-400Z is somewhat slower than average in its operation. It quickly switches to record or play mode but has a rather slow shutter response in autofocus mode. It's a bit faster than average when "prefocused" by half-pressing and holding the shutter button before the shot itself, but the shutter delay in normal autofocus operation is long enough that it's likely to annoy most users.
Power
The KD-400Z uses one Li-Ion rechargeable battery for power. Unfortunately, the KD-400Z doesn't have the usual external power jack, and Konica didn't include a power adapter with it, so I couldn't conduct my normal power drain measurements. I did time the camera, operating from a freshly-charged battery, and found that it ran 60 minutes in capture mode with the LCD turned on. You should definitely consider purchasing a second battery to pack along in your pocket for longer shooting excursions.
Storage Capacity
The KD-400Z stores its photos on either Sony Memory Sticks or Secure Digital memory cards, and a 16MB SD card is included with the camera. (I strongly recommend buying at least a 64MB card, preferably a 128MB one, to give yourself extra space for extended outings.) The chart below shows how many images can be stored on the included 16MB card at each size/quality setting.
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Resolution/Quality 16MB Memory Card |
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| 2,560 x 1,920 | Images (Avg size) |
6 2,560 KB |
12 1,333 KB |
| Approx. Compression |
6:1 | 11:1 | |
| 2,048 x 1,536 | Images (Avg size) |
10 1,561 KB |
18 865 KB |
| Approx. Compression |
6:1 | 11:1 | |
| 1,280 x 960 | Images (Avg size) |
634 KB |
342 KB |
| Approx. Compression |
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Images (Avg size) |
162 KB |
65 KB |
| Approx. Compression |
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Download Speed
The KD-400Z connects to a host computer via a USB interface. Downloading
files to a dual 1 GHz PowerMac G4 (OS X, version 10.2.3), I clocked it at
177KBytes/second. This is about slow as USB-connected cameras go. (Cameras
with slow USB interfaces usually run as low as 300 KB/s, cameras with fast
ones run as high as 600 KB/s.) To avoid frustration when downloading, you'll
probably want to purchase an external card reader.
KD-400 Test Images
KD-400 Specifications
KD-400 "Picky Details"
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