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"Picky Details" for the Konica Minolta DiMAGE Z20
digital camera Timing When you press the shutter release on a camera, there's usually a lag time or delay before the shutter actually fires. This corresponds to the time required for the autofocus and autoexposure mechanisms time to do their work, and can amount to a fairly long delay in some situations. Since this number is rarely reported on (and even more rarely reported accurately), and can significantly affect the picture taking experience, I routinely measure both shutter delay and shot to shot cycle times for all cameras I test, 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 Minolta DiMAGE Z20:
Good startup speed, good shutter response, average cycle times. The Konica Minolta Z20 starts up fairly quickly, and is more responsive to the shutter than most cameras I test, with full-autofocus shutter delays right around 0.67 second, regardless of zoom setting. Shot to shot cycle times were average, at 2.55 seconds/frame for large/fine JPEGs, but continuous-mode speed was quite fast at 3.3 frames/second, albeit for only 3 frames before the buffer filled. Not bad for an attractively priced long-zoom camera.
Power The Konica Minolta DiMAGE Z20 uses four AA batteries for power.
Excellent battery life. Even among cameras powered by four AA cells (many cameras these days use only two), the Konica Minolta Z20's battery life is really excellent. Worst case run time is projected at over four hours for "standard" 1600 mAh NiMH cells, and would be more than five hours with modern, high-capacity cells. Run time in playback mode is an astonishing eight hours.
Storage Capacity The Konica Minolta DiMAGE Z20 stores its photos on SD/MMC memory cards or
in approximately 14.5 MB of internal memory. No memory card is included with
the camera. (I strongly recommend buying at least a 128 MB card, preferably
a 256 MB one, to give yourself extra space for extended outings.) The chart
below shows how many images can be stored in the internal memory at each size/quality
setting.
Download Speed The Konica Minolta DiMAGE Z20 connects to a host computer via a USB interface. Downloading files to my Sony desktop running Windows XP (Pentium IV, 2.4 GHz), I clocked it at 764 KBytes/second, a very respectable rate. (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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