"Picky Details" for the Canon PowerShot A410 digital camera
(Timing, Power, and Storage Info)
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 Canon PowerShot A410:
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(secs) |
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Power On -> First shot |
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LCD turns on and lens extends forward.
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Shutdown |
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First time is time to retract lens, second time is
worst-case buffer-clearing time.
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Play to Record, first shot |
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Time until first shot is captured.
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Record to play |
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First time is that required to display a large/fine
file immediately after capture, second time is that needed to display
a large/fine file that has already been processed and stored on the
memory card.
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Shutter lag, full autofocus |
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First time is at full wide-angle, second is full telephoto. |
Shutter lag, prefocus |
0.062
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Time to capture, after half-pressing shutter button. |
Cycle Time, single shot mode |
1.83 |
Times are averages. Regardless of resolution, shoots at this rate indefinitely, clearing the buffer after each shot. |
Cycle Time, Flash exposures | 10 | Flash at maximum power output. |
Cycle Time, continuous mode | 0.42 (2.4 fps) |
Times are averages. Regardless of resolution, shoots at this rate seemingly indefinitely. Buffer clears in 2 seconds after over 100 large/fine images, almost immediately for lowest resolution. |
Power
The Canon PowerShot A410 uses a two AA batteries for power, and ordinary alkaline batteries are included with the camera. The table below shows the power drain I measured in various operating modes, and the corresponding run times to be expected from a standard set of 1600 mAh NiMH cells.
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(@3.3 volts on the external power terminal) |
(two 1600 mA cells) |
Capture Mode, w/LCD |
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Capture Mode, no LCD |
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Half-pressed shutter w/LCD |
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Half-pressed w/o LCD |
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Memory Write (transient) |
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Flash Recharge (transient) |
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Image Playback |
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Storage Capacity
The Canon PowerShot A410 stores its photos on SD / MMC memory cards, and a 16 MB card is included with the camera. (I strongly recommend buying at least a 64 MB card, preferably a 128 MB one, to give yourself extra space for extended outings.) The chart below shows how many images can be stored on the included 16 MB card at each size/quality setting.
Resolution/Quality 16 MB Memory Card |
Fine | Normal |
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2048
x 1536 |
Images (Avg size) |
9 1.7 MB |
16 943 KB |
33 479 KB |
Approx. Compression |
6:1 | 11:1 | 20:1 | |
1600 x 1200 | Images (Avg size) |
15 1.1 MB |
26 595 KB |
50 314 KB |
Approx. Compression |
5:1 | 10:1 | 18:1 | |
1024 x 768 | Images (Avg size) |
26 612 KB |
46 347 KB |
80 198 KB |
Approx. Compression |
4:1 | 7:1 | 12:1 | |
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Images (Avg size) |
56 281 KB |
88 182 KB |
138 116 KB |
Approx. Compression |
3:1 | 5:1 | 8:1 |
Download Speed
The Canon PowerShot A410 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 771 KBytes/second. (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.)
A410 Test Images
A410 Specifications
A410 "Picky Details"
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