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"Picky Details" for the Samsung Digimax L50 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 Samsung Digimax L50:

Samsung Digimax L50 Timings
Operation
Time
(secs)
Notes
Power On -> First shot
2.2
LCD turns on and lens extends forward.
Shutdown
1.7 - 4
First time is time to retract lens, second time is worst-case buffer-clearing time.
Play to Record, first shot
0.5
Time until first shot is captured.
Record to play
3.0 / 1.0
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
0.87 / 0.91
First time is at full wide-angle, second is full telephoto.
Shutter lag, prefocus
0.259
Time to capture, after half-pressing shutter button.
Cycle Time, max/min resolution

2.91 /
2.54

First number is for large/fine files, second number is time for "TV" mode (640x480) images. Times are averages. In both modes, shoots this fast continuously, waiting for the buffer to clear before allowing another shot.
Cycle Time, Flash exposures 4 (Flash at maximum power output)
Cycle Time, continuous mode, max/min resolution 1.50 / 0.74
(0.67 / 1.35 fps)
First number is for large/fine files, second number is time for "TV" size images. Times are averages. In both modes, shoots this fast continuously, clearing the buffer after each shot.

 

Power

The Samsung Digimax L50 uses a custom rechargeable LiIon battery for power. Because it doesn't have a standard external power connector, I wasn't able to conduct my usual power consumption tests on it.

Operating Mode
Battery Life
Still-image capture mode
backlight on
110 minutes
Images captured
with flash every 2 times
190 images
Movie mode
640x480, 30fps
90 minutes

The Digimax L50 uses a custom rechargeable 3.7 volt Lithium Ion battery for power. According to the manual, the camera will shoot for 110 minutes, capturing 190 images. Conditions are roughly equivalent to CIPA standards, though Samsung calls it "Samsung Standard." "Using the fully charged battery, Auto mode, 5M image size, Fine image quality; shot-to-shot interval: 30 sec. Changing the zoom position between the Wide and the Tele ends every 1 shot, using the flash every two times."

Storage Capacity

The Samsung Digimax L50 stores its photos on SD / MMC memory cards or in approximately 26MB of internal memory, and no 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 in the internal memory at each size/quality setting.

Image Capacity vs
Resolution/Quality
26 MB Internal Memory
Fine Normal
Basic
2592 x 1944 Images
(Avg size)
9
3.0 MB
16
1.7 MB
27
985 KB
Approx.
Compression
5:1 9:1 15:1
2272 x 1704 Images
(Avg size)
11
2.3 MB
20
1.3 MB
35
766 KB
Approx.
Compression
5:1 9:1 15:1
2048 x 1536 Images
(Avg size)
14
1.9 MB
25
1.1 MB
44
617 KB
Approx.
Compression
5:1 9:1 15:1
1600 x 1200 Images
(Avg size)
23
1.1 MB
41
650 KB
60
450 KB
Approx.
Compression
5:1 9:1 13:1
1024 x 768 Images
(Avg size)
58
467 KB
81
333 KB
102
267 KB
Approx.
Compression
5:1 7:1 9:1
640 x 480
Images
(Avg size)
125
217 KB
148
183 KB
163
167 KB
Approx.
Compression
4:1 5:1
6:1

 

Download Speed

The Samsung Digimax L50 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 3196 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.)

L50 Review
L50 Test Images
L50 Specifications
L50 "Picky Details"
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