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"Picky Details" for the Konica Minolta DiMAGE Xg digital camera
(Timing, Power, and Storage Info)  

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 DiMAGE Xg:


DiMAGE Xg Timings
Power On -> First shot
Internal lens allows fast startup, but I don't agree with Minolta's spec of 0.8 seconds.
1.5 - 22
Normal shutdown / delay while memory buffer clears. First time is that required for lens shield to slide into place, second is worst-case buffer clearing time before you can remove the card. (Small/basic continuous shooting mode.) Fairly fast for normal shutdown, buffer-clearing time is long though.
Play to Record, first shot
Time until first shot is captured. Average.
Record to play
Time to display a large/fine file. First time is with camera sitting idle, second time is for immediate switch after capture. First time is fast, second is about average.
Shutter lag, full autofocus
First time is at full wide-angle, second is full telephoto. On the fast side of average. (Which is still too slow IMHO, but the general range for digicams is 0.8-1.0 seconds.)
Shutter lag, prefocus
Time to capture, after half-pressing shutter button. Very fast.
Cycle Time, max/min resolution

2.71 /

First number is for large/fine files, second number is time for "TV" mode (640x480) images. Times are averages. In both modes, the buffer holds 20+ frames, and takes up to 6 seconds to clear. On the slow side of average these days.
Cycle Time, continuous mode, max/min resolution 0.72 / 0.67
(1.4 / 1.5 fps)
First number is for large/fine files, second number is time for small/basic images. Times are averages. Shoots this fast for 10 images in large/fine mode, or 40+ images with smallest file size. Buffer clears in 6 seconds for large/fine shots, in 22 seconds for 40 "TV" sized images. Fairly good performance, particularly for a compact digicam, and buffer capacity is excellent.


Overall, the word that best describes the Xg's performance is "average." It's fast starting up, on the fast side of average for full-autofocus shutter lag, very fast for prefocus shutter lag, but on the slow side in terms of shot to shot cycle time. Continuous-mode performance is average, but the camera's deep, 10-shot buffer is nice.


The DiMAGE Xg uses a custom rechargeable LiIon battery for power. It lacks an external power terminal, so I couldn't conduct my usual precise power measurements on it. I did time its battery life in record mode with the LCD active (generally, the worst-case power drain mode), and found it to be a very good 112 minutes, a significant improvement over the previous DiMAGE Xt. While I didn't measure it, Minolta claims 240 minutes in playback mode, and I have no reason to dispute that number. (The Xt's power consumption dropped to nearly zero with the LCD off, so I suspect the Xg would behave the same.) As always, despite the Xg's generally good battery life performance, I still strongly advise purchasing a second battery when you buy the camera.

Storage Capacity
The DiMAGE Xg stores its photos on Secure Digital 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.

Image Capacity vs
16 MB Memory Card
Fine Normal
2,048 x 1,536 Images
(Avg size)
1.64 MB
583 KB
459 KB
6:1 11:1 21:1
1,600 x 1,200 Images
(Avg size)
1.0 MB
540 KB
311 KB
6:1 11:1 19:1
1,280 x 960 Images
(Avg size)
607 KB
344 KB
197 KB
6:1 10:1
640 x 480
(Avg size)
213 KB
147 KB
4:1 6:1


Download Speed

The DiMAGE Xg connects to a host computer via a USB interface. Downloading files to a Sony desktop running Windows XP. I clocked it at 837 KBytes/second. This suggests that the Xg has a USB v2.0 interface, as it's faster than cameras with USB v1.1 interfaces can manage. (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.)


Xg Review
Xg Test Images
Xg Specifications
Xg "Picky Details"
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