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"Picky Details" for the Canon PowerShot A610 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, we routinely measure both shutter delay and shot to shot cycle times for all cameras e test, using a test system Dave designed and built for the purpose. (Crystal-controlled, with a resolution of 0.001 second.) Here are the numbers we collected for the Canon PowerShot A610:

Canon PowerShot A610 Timings
Operation
Time
(secs)
Notes
Power On -> First shot
1.4
LCD turns on and lens extends forward.
Shutdown
1.8 - 3
First time is time to retract lens, second time is worst-case buffer-clearing time.
Play to Record, first shot
1.0
Time until first shot is captured.
Record to play
2.3 / 1.2
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.
Shutter lag, full autofocus
0.48 / 0.63
First time is at full wide-angle, second is full telephoto.
Shutter lag, prefocus
0.071
Time to capture, after half-pressing shutter button.
Shutter lag, manual focus
0.23
Time to capture, with focus set manually.
Cycle Time, max/min resolution

1.09 / 1.07

First number is for large/fine files, second number is time for "TV" mode (640x480) images. Times are averages. In both modes, shoots at this pace continuously, clearing the buffer after each shot.
Cycle Time, Flash exposures 5 (Flash at maximum power output)
Cycle Time, continuous mode 0.41
(2.44 fps)
Times are averages. Shoots at this pace continuously, clearing the buffer after each shot, regardless of resolution.

 

Power

The Canon PowerShot A610 uses four AA batteries for power, and ordinary alkaline batteries are included with the camera.

Operating Mode
Power
(@5.0 volts on the external power terminal)
Est. Minutes
(four 1600 mA cells)
Capture Mode, w/LCD
292 mA
316
Capture Mode, no LCD
56.3 mA
27 hours
Half-pressed shutter w/LCD
448 mA
206
Half-pressed w/o LCD
354 mA
260
Memory Write (transient)
427 mA
n/a
Flash Recharge (transient)
864 mA
n/a
Image Playback
139 mA
11 hours

Read Dave's NiMH battery shootout page to see which batteries currently on the market are the best, and see our review of the Maha C-204W NiMH battery charger, his current favorite.

 

Storage Capacity

The Canon PowerShot A610 stores its photos on SD / MMC memory cards, and a 16 MB card is included with the camera. (We strongly recommend buying large SD card, 64 MB or 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 32 MB card at each size/quality setting.

Image Capacity vs
Resolution/Quality
16 MB Memory Card
Fine Normal
Basic
2592 x 1944 Images
(Avg size)
6
2.7 MB
10
1.4 MB
21
750 KB
Approx.
Compression
6:1 10:1 20:1
2048 x 1536 Images
(Avg size)
9
1.7 MB
16
950 KB
33
483 KB
Approx.
Compression
6:1 10:1 20:1
1600 x 1200 Images
(Avg size)
15
1.1 MB
26
600 KB
50
316 KB
Approx.
Compression
5:1 10:1 19:1
640 x 480
Images
(Avg size)
56
283 KB
87
183 KB
137
117 KB
Approx.
Compression
3:1 5:1
8:1

 

Download Speed

The Canon PowerShot A610 connects to a host computer via a USB interface. Downloading files to my USB 2.0-equipped Sony desktop running Windows XP (Pentium IV, 2.4 GHz), I clocked it at 1501 KBytes/second, a very good 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.)

A610 Review
A610 Test Images
A610 Specifications
A610 "Picky Details"
Up to Imaging Resource digital cameras area

 

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