Samsung GX-20

Samsung GX-20 front
  • 15MP - APS-C Sensor
  • 2.7" Fixed Display
  • ISO 100 - 3200 (Raise to 6400)
  • Sensor based Image Stabilization
  • No Video
  • Pentax KAF2 Mount
  • 800g - 142 x 101 x 72mm
  • Revealed January 2008
  • Previous Model is Samsung GX-10
  • Read full specs
  • Alternatives
  • Lenses
  • Size Comparison
  • FAQ

Samsung GX-20 overview

Samsung GX-20 is Samsung's Advanced DSLR camera initially released on January of 2008. The camera houses a 15MP, CMOS APS-C size sensor with a maximum resolution of 4688 x 3120.

Samsung brought out this camera as a way to improve the older Samsung GX-10 (Read Full Comparison)

The GX-20 is placed #55 out of 92 in Advanced DSLR cameras & all round #407 out of 1465 for cameras in our collection. Remember to test our Advanced camera finder to get camera results based on your personal criteria.

Photography Glossary

The following is a graph of multiple criteria used in the scoring system.

Samsung GX-20 family

The Samsung GX-20 is part of a family of products. You can view the complete list underneath.

ModelVisualizeResolutionSensor SizeMax fpsReleased
Samsung-GX-20 front thumbnailSamsung GX-2015MPAPS-C3.0 fps2008
Samsung-GX-10 front thumbnailSamsung GX-10
GX-20 vs GX-10
10MPAPS-C3.0 fps2006
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Samsung-GX-1L front thumbnailSamsung GX-1L
GX-20 vs GX-1L
6MPAPS-C3.0 fps2006
Samsung-GX-1S front thumbnailSamsung GX-1S
GX-20 vs GX-1S
6MPAPS-C3.0 fps2006

Samsung GX-20 Pros and Cons

Here is a list of upsides and downsides of the Samsung GX-20 based on criterias which are oftentimes viewed as important in a camera.

built in image stabilization (Sensor based)
environment sealing
flash built-in
has phase detect auto focus
includes Top display
manual focus
resolution is good (15MP)
saves RAW files
sensor size is decent (APS-C)
switch lenses (Pentax KAF2 mount)
very good min ISO (100)
can't shoot video
display isn't selfie friendly
max fps low (3.0 frames/s)
missing HDMI port
missing headphone port
missing mic port
pixelated screen (230 k dot)
screen does not articulate
screen is somewhat small (2.7 inch)
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Samsung GX-20 Sensor specs

The sensor spec on the Samsung GX-20 is 23.4mm x 15.6mm (APS-C). The 365 mm² sensor can resolve 4688 x 3120 pixels . The camera comes with Image Stabilization (Sensor based). Optical stabilization is more effective than digital stabilization since the latter can cause cropping.

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The CMOS sensor has 15MP and delivers a native ISO range of 100 to 3200. The ISO can be expanded electronically to a maximum of 6400. RAW format is saved so the user has more room to maneuver in post.

The image underneath shows the GX-20's sensor size compared to other common sizes. The GX-20 sensor has a crop factor of 1.5 and is shown in green.

Samsung GX-20 sensor size President Biden pushes bill mandating TikTok sale or ban

To get an idea of different aspect ratios, you can refer to the visual below.

Camera sensor aspect ratios

Samsung GX-20 dimensions

Samsung GX-20 is 1.76 lb (800 grams or 28.22 oz) & has outside proportions of 142mm x 101mm x 72mm (5.6" x 4.0" x 2.8"). The weight of normal Advanced DSLR camera is 776 grams and the Samsung GX-20 is on par as compared to various competitors.

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Down below is a image of the Samsung GX-20 next to a soda to help you to get a sense of its size.

Samsung GX-20 dimensions scale

The top view underneath will provide the button arrangement on the GX-20.

Samsung GX-20 topview buttons dials

Samsung GX-20 Lens details

The GX-20 uses the Pentax KAF2 mount and has 17 lenses that you can buy. Here is a few of the lenses we have in our collection that will fit the GX-20.

ModelVisualizeFocal LengthApertureStabilizedWeight
Samsung-D-Xenon-35mm-F2-AL lensSamsung D-Xenon 35mm F2 AL35mmf/2.0 195g
HD-Pentax-DA-55-300mm-F4.0-5.8-ED-WR lensHD Pentax DA 55-300mm F4.0-5.8 ED WR55-300mmf/4.0-5.8 466g
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Venus-Laowa-105mm-F2-Smooth-Trans-Focus-Pentax-KAF2 lensVenus Laowa 105mm F2 Smooth Trans Focus105mmf/2745g
Samsung-D-Xenon-16-45mm-F4 lensSamsung D-Xenon 16-45mm F416-45mmf/4.0 365g
Samsung-D-Xenon-18-55mm-F3.5-5.6 lensSamsung D-Xenon 18-55mm F3.5-5.618-55mmf/3.5-5.6 225g
Venus-Laowa-25mm-F2.8-2.5-5X-Ultra-Macro-Pentax-KAF2 lensVenus Laowa 25mm F2.8 2.5-5X Ultra Macro25mmf/2.8400g
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Samsung-D-Xenon-12-24mm-F4-ED-Pentax-KAF lensSamsung D-Xenon 12-24mm F4 ED12-24mmf/4.0 430g
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Samsung GX-20 Connectivity

The GX-20 has the following connectivity:

  • USB Yes

Cameras with NFC or Bluetooth compatibility are able to be controlled wirelessly through smartphones. You are able to copy photos and in some cases alter settings without the hassle of connecting physically with the camera.

Several apps also provide a Liveview and click the shutter when you aren't near the camera. If the camera comes with a HDMI port, it can easily be attached to an external monitor. Virtually all cameras enable you to recharge the battery using the USB socket.

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Samsung GX-20 Video details

Samsung GX-20 does not capture video. If you are looking for a camera to shoot just images, it is not a problem.

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Samsung GX-20 Weather Sealing

Samsung GX-20 provides environment sealing which makes it a very good option for use during tricky environments. This can be especially valuable any time you are uncertain about the conditions you might face during outdoor photography.

Samsung GX-20 Display and Viewfinder

The Samsung GX-20 is equipped with a 2.7" fixed display screen having a resolution of 230k dots.

Sadly the display screen is not a touch screen. The GX-20 also comes with a Top display so you're able to quickly look at your settings.

Samsung GX-20 screen and viewfinder Photography Glossary

The ViewFinder specifications for Samsung GX-20 are as follows:

  • ViewFinder Optical (pentaprism)
  • Coverage 95 percent
  • Magnification 0.64x

For sunny outdoor conditions that make the camera screens washed out and challenging to see, viewfinders can be particularly useful.

Samsung GX-20 Shutter details

Samsung GX-20 can shoot continuously at 3.0 frames/s. The maximum shutter speed is 1/4000s.

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Samsung GX-20 Flash and Hot shoe details

Samsung GX-20 comes with both integrated flash together with external flash ability. The max flash sync is 1/180s.

Samsung GX-20 Autofocus details

Samsung GX-20 comes with both Phase Detect AF as well as Contrast Detect AF. Phase Detection focusing is more faster and precise as compared to Contrast Detect focusing.

It supports 11 focus points to pick from. Samsung GX-20 can use manual focus if required during low light or you want to have more exact control on focus.

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Samsung GX-20 Battery life

The general Advanced DSLR camera battery life is 909. Nikon D780 has got the highest possible (2260) battery life within this category of cameras.

Listed below is a list of Advanced DSLR cameras that have the highest battery life:

ModelVisualizeBattery LifeRAWNFCBluetooth
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Nikon-Df front thumbnailNikon Df
GX-20 vs Df
1400 yesnono
Canon-EOS-90D front thumbnailCanon 90D
GX-20 vs 90D
1300 yesnoyes

Samsung GX-20 for specific styles of photography

The following bar chart presents a summation of the Samsung GX-20 for specific styles of photography. To understand more, check out the specific section underneath.

Samsung GX-20 Portrait photography info

The Samsung GX-20 gets a points total of 71 which is nice, and means the camera is a very decent option for portrait photography. Photographing portraits leans greatly towards sensor resolution, RAW support in addition to the capability to use external flash.

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focusing manually
good resolution (15 megapixels)
good sensor size (APS-C)
delivers RAW files

Samsung GX-20 Street photography information

Coming in at a above average rating of 65, the Samsung GX-20 is a very decent fit to use in street photography. A decent street photography camera comes with a perfect balance of picture quality and portability.

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built in image stabilization (Sensor based)
sensor size is good (APS-C)
delivers RAW formats
weather sealing
screen is fixed

Samsung GX-20 as a Sports photography camera

A very good sports photography points total of 68 means the Samsung GX-20 is a respectable option for shooting sports. A camera needs to have excellent focusing plus fast continuous shooting for sports photography.

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image stabilization (Sensor based)
good megapixels (15MP)
nice sensor size (APS-C)
environment proof
has phase detect auto focus
max fps low (3.0 frames per second)

Samsung GX-20 Travel photography advice

Size is really important when choosing a camera for travel. On the whole, the Samsung GX-20 gets a above average 63 as a travelling camera which is a respectable option to purchase for your travels.

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environment proof
good MP (15MP)
flash built-in
display isn't selfie friendly

Samsung GX-20 Landscape photography info

For anybody who is planning to pick a camera for landscape photos, the most significant aspect will no doubt be image quality. The Samsung GX-20 with it's very good rating of 70 as a landscape camera is a fine fit in the current market.

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manual focus
switch lenses (Pentax KAF2 mount)
image stabilization (Sensor based)
megapixel count good (15MP)
sensor size is good (APS-C)
saves RAW formats
environment proofing
tiny screen (2.7 inch)

Vlogging with Samsung GX-20

A vlogging camera ought to posses a articulating screen, microphone input and if possible image stabilization. Considering everything, the Samsung GX-20 is just not good as a vlog camera as it delivers a terrible score of 9.

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no video recording

Samsung GX-20 Alternatives

If you are in the market for replacements to the GX-20, below is a collection of the top ranked cameras that fall within the family of Advanced DSLR.

The graph followed below will give you an overview of the GX-20 vs it's top ranking competitors listed earlier.

Following are additional cameras you may look at as alternative options. To read through a thorough comparison, visit the "compare" link.

Photography Glossary


General Information
Samsung GX-20
Advanced DSLR
Body design
Mid-size SLR
Sensor Information
Sensor type
Sensor size
Sensor dimensions
23.4 x 15.6mm
Sensor area
Sensor resolution
15 megapixels
Anti aliasing filter
Maximum resolution
4688 x 3120
RAW files
Maximum native ISO
Maximum boosted ISO
Lowest native ISO
Manual focus
AF touch
AF continuous
Single AF
AF tracking
Selective AF
Center weighted AF
Multi area AF
AF live view
Face detect AF
Contract detect AF
Phase detect AF
Number of focus points
Lens mount
Pentax KAF2
Total lenses
Focal length multiplier
Display type
Fixed Type
Display sizing
2.7 inch
Display resolution
230k dot
Selfie friendly
Touch friendly
Viewfinder Information
Optical (pentaprism)
Viewfinder coverage
95 percent
Viewfinder magnification
DXO scores
DXO All around score
DXO Color Depth score
DXO Dynamic range score
DXO Low light score
Slowest shutter speed
30 seconds
Maximum shutter speed
1/4000 seconds
Continuous shooting speed
3.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation
Custom WB
Image stabilization
Integrated flash
Flash range
13.00 m (at ISO 100)
Flash modes
Auto, Red-Eye, Slow, Red-Eye Slow, Rear curtain, wireless
Hot shoe
AE bracketing
WB bracketing
Maximum flash sync
1/180 seconds
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Maximum video resolution
Mic jack
Headphone jack
USB 2.0 (480 Mbit/sec)
Environmental seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
800 gr (1.76 pounds)
Physical dimensions
142 x 101 x 72mm (5.6" x 4.0" x 2.8")
Self timer
Yes (2 or 10 sec)
Time lapse feature
Type of storage
Storage slots
Price at launch