Samsung GX-20

Released January, 2008
  • 14.6 MP
  • APS-C 23.4 x 15.6 mm CMOS
  • 2.7" LCD
The characteristics of the GX20's images are similar to those of the Pentax K20D, with good contrast and really strong, saturated.
by TechRadar (Jul, 2008)
9.1 Out of 10

Camera Rocket Review Our evaluation of the Samsung GX-20

Image Quality

RAW image quality independent of lens

GX-20
8.5
SLT A99
9.9
D3300
9.9
DxOMark Low light, DxOMark Color depth and DxOMark Dynamic range

Focusing

How fast and easily does the camera nail focus

GX-20
n.d.
SLT A99
n.d.
D3300
n.d.
cross type focus points and focus points

Responsiveness

How much delay is there between you and your photo?

GX-20
10.0
SLT A99
10.0
D3300
10.0
continuous shooting

Reviews

What do the experts think?

GX-20
9.2
SLT A99
9.2
D3300
9.2
Reviews from techradar.com

9.1

Camera Rocket Score

Image Quality, Focusing, Responsiveness and Reviews

GX-20
9.1
SLT A99
9.5
D3300
9.5

Benchmarks Real world tests of the Samsung GX-20

Low light image quality Highest ISO setting that still achieves great image quality

GX-20
714 ISO
SLT A99
1,555 ISO
DSLR-A900
1,431 ISO

Continuous shooting Delay between fully pressing shutter to image capture

GX-20
3 fps
EOS 40D
6.5 fps
SLT A99
6 fps

Color depth The number of variations of color the camera can capture

GX-20
23.1 bits
SLT A99
25.0 bits
D3300
24.3 bits

Dynamic range Maximum range a camera can capture in one image from light to dark

GX-20
11.2 ev
SLT A99
14.0 ev
D3300
13.2 ev

Photo Gallery Wallpaper quality closeups of the camera

Reviews Word on the street for the Samsung GX-20


8.0
In 'TAv' mode, you choose the shutter speed and aperture settings you want, and the camera chooses the ISO needed to get the correct exposure.

What People Are Saying Give it to me straight

Lens

To get the best from a camera of this stature, you really do need a better lens than the one supplied.
by TechRadar (Jul, 2008)
Indeed, in the Samsung manual it specifies the lens mount as 'Pentax KAF2.
by TechRadar (Jul, 2008)
It also looks a bit odd because it's a small lens fitted to a big camera.
by TechRadar (Jul, 2008)

Sensor

Apart from that, though, the sensor is the same, and so is the overall 'look' of the images.
by TechRadar (Jul, 2008)
You set the ISO that you think is suitable for the conditions and the camera then sets the shutter speed and aperture.
by TechRadar (Jul, 2008)
But while Samsung's promotional literature makes much of the sensor's dynamic range, there was no sign of the expanded dynamic range option that's included on the K20D, either on the ISO screen, in the menus or in the manual.
by TechRadar (Jul, 2008)

Mount

Since we're talking money, we inevitably have to compare the Samsung GX20 with the Pentax K20D.
by TechRadar (Jul, 2008)
Thanks to the current cashback deal, the GX20 is a cheaper, if slightly less desirable alternative to the Pentax K20D.
by TechRadar (Jul, 2008)
It clearly has the same body, lens, sensor and exterior controls as the Pentax K20D (albeit with a few minor cosmetic tweaks) and, really, it's more or less the same camera.
by TechRadar (Jul, 2008)

Zoom

Although Samsung distributes its own branded lenses, for example, these are clearly duplicates of Pentax optics - just as the 18-55mm kit lens on the GX20 is the same as the 18-55mm zoom supplied with the K20D.
by TechRadar (Jul, 2008)

Shutter

Twin control wheels make light work of shutter speed and aperture adjustments, and the sensor-shift, anti-shake system enables you to capture sharp shots up to four shutter speeds slower than usual.
by TechRadar (Jul, 2008)

Specifications Full list of technical specs

sensor

Type CMOS
Megapixels 14.6 MP
Resolution 4688 x 3120
Size APS-C
Area 23.4 x 15.6 mm
Crop factor 1.5x
Pixel size 25.0 microns
Light sensitivity 100 ISO to 3,200 ISO
Light sensitivity (Boost) 3,200 ISO to 6,400 ISO
Codecs
  1. RAW
  2. JPEG

focus system

Type Contrast detection

viewfinder

Viewfinder mirror Opaque
Viewfinder Viewfinder
Type Pentaprism
Coverage 95%
Magnification 0.95x
Viewfinder size 0.62x

form factor

Size 142 x 101 x 72 mm
Thickness 72 mm
Weight 800 g
Is weather sealed Yes

video

Video None

display

Type LCD
Size 2.7"
Resolution 230 k dots
Has a touch screen No
Has a flip out screen No
Supports live view Yes

shutter

Min 30 s
Max 1/4000 s

performance

Max continuous shooting 3 fps
Continuous shooting 3 fps, JPEG

features

Includes a GPS No
Supports HDR No
Automatic panorama No
Create realistic 3D images No
Image stabilization Sensor shift
Report a correction

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