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Olympus E-620 vs Panasonic GX9

The Olympus E-620 and the Panasonic Lumix DC-GX9 are two digital cameras that were officially introduced, respectively, in February 2009 and February 2018. The E-620 is a DSLR, while the GX9 is a mirrorless interchangeable lens camera. Both cameras are equipped with a Four Thirds sensor. The Olympus has a resolution of 12.2 megapixels, whereas the Panasonic provides 20.2 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Olympus E-620
versus
Panasonic GX9
Olympus E-620   Panasonic GX9
Digital single lens reflex Mirrorless system camera
Four Thirds lenses Micro Four Thirds lenses
12.2 MP – Four Thirds sensor 20.2 MP – Four Thirds sensor
no Video 4K/30p Video
ISO 100-3,200 ISO 200-25,600
Optical viewfinder Electronic viewfinder (2760k dots)
2.7" LCD – 230k dots 3.0" LCD – 1240k dots
Swivel screen (not touch-sensitive) Tilting touchscreen
4 shutter flaps per second 9 shutter flaps per second
In-body stabilizationIn-body stabilization
500 shots per battery charge260 shots per battery charge
130 x 94 x 60 mm, 521 g 124 x 72 x 47 mm, 407 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus E-620 and the Panasonic Lumix DC-GX9? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

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Body comparison

The side-by-side display below illustrates the physical size and weight of the Olympus E-620 and the Panasonic GX9. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth dimensions are rounded to the nearest millimeter.

The GX9 can be obtained in two different colors (black, silver), while the E-620 is only available in black.

Size Olympus E-620 vs Panasonic GX9
Compare E-620 versus GX9 top
Comparison E-620 or GX9 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic GX9 is notably smaller (27 percent) than the Olympus E-620. Moreover, the GX9 is markedly lighter (22 percent) than the E-620. In this context, it is worth noting that neither the E-620 nor the GX9 are weather-sealed.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. Both cameras have similarly sized sensors, but DSLRs have a larger flange-to-focal plane distance than mirrorless cameras, which imposes contraints on the optical engineering process and generally leads to bigger and heavier lenses. You can compare the optics available for the two cameras in the Four Thirds Lens Catalog (E-620) and the Micro Four Thirds Lens Catalog (GX9). Mirrorless cameras, such as the GX9, have moreover the advantage that they can use many lenses from other systems via adapters, as they have a relatively short flange to focal plane distance.

Concerning battery life, the E-620 gets 500 shots out of its Olympus BLS-1 battery, while the GX9 can take 260 images on a single charge of its Panasonic DMW-BLG10 power pack. The power pack in the GX9 can be charged via the USB port, which can be very convenient when travelling.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

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Body Specifications
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
1.
 
Olympus E-620 130 mm 94 mm 60 mm 521 g 500 n Feb 2009 US$ 699ebay.com
2.
 
Panasonic GX9 124 mm 72 mm 47 mm 407 g 260 n Feb 2018 US$ 849ebay.com
3.
 
Olympus E-30 142 mm 108 mm 75 mm 701 g 750 n Nov 2008 US$ 1 299ebay.com
4.
 
Olympus E-410 130 mm 91 mm 53 mm 435 g 500 n Mar 2007 US$ 699ebay.com
5.
 
Olympus E-420 130 mm 91 mm 53 mm 440 g 500 n Mar 2008 US$ 599ebay.com
6.
 
Olympus E-450 130 mm 91 mm 53 mm 440 g 500 n Mar 2009 US$ 499ebay.com
7.
 
Olympus E-510 136 mm 92 mm 68 mm 538 g 750 n Mar 2007 US$ 799ebay.com
8.
 
Olympus E-520 136 mm 92 mm 68 mm 535 g 750 n May 2008 US$ 699ebay.com
9.
 
Olympus E-600 130 mm 94 mm 60 mm 535 g 500 n Aug 2009 US$ 449ebay.com
10.
 
Olympus E-P1 121 mm 70 mm 36 mm 355 g 300 n Jun 2009 US$ 799ebay.com
11.
 
Olympus E-P2 121 mm 70 mm 36 mm 355 g 300 n Nov 2009 US$ 799ebay.com
12.
 
Olympus E-PL1 115 mm 72 mm 42 mm 334 g 290 n Feb 2010 US$ 599ebay.com
13.
 
Panasonic GX7 123 mm 71 mm 55 mm 402 g 350 n Aug 2013 US$ 999ebay.com
14.
 
Panasonic GX8 133 mm 78 mm 63 mm 487 g 330 Y Jul 2015 US$ 1 199ebay.com
15.
 
Panasonic GX85 122 mm 71 mm 44 mm 426 g 290 n Apr 2016 US$ 799 amazon.com
16.
 
Panasonic LX100 II 115 mm 66 mm 65 mm 392 g 300 n Aug 2018 US$ 999ebay.com
17.
 
Panasonic ZS200 111 mm 65 mm 45 mm 340 g 370 n Feb 2018 US$ 799 amazon.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The E-620 was launched at a somewhat lower price (by 18 percent) than the GX9, which makes it more attractive for photographers on a tight budget. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

Sensor comparison

The size of the imaging sensor is a crucial determinant of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels in a sensor of the same technological generation. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.

Both cameras under consideration feature a Four Thirds sensor and have a format factor (sometimes also referred to as "crop factor") of 2.0. Within the spectrum of camera sensors, this places the review cameras among the medium-sized sensor cameras that aim to strike a balance between image quality and portability. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.

Olympus E-620 and Panasonic GX9 sensor measures

While the two cameras under review share the same sensor size, the GX9 offers a higher resolution of 20.2 megapixels, compared with 12.2 MP of the E-620. This megapixels advantage translates into a 29 percent gain in linear resolution. On the other hand, these sensor specs imply that the GX9 has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.34μm versus 4.29μm for the E-620). However, it should be noted that the GX9 is much more recent (by 8 years and 11 months) than the E-620, and its sensor will have benefitted from technological advances during this time that compensate for the smaller pixel size. Coming back to sensor resolution, it should be mentioned that the GX9 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Panasonic GX9 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the GX9 for good quality output (200 dots per inch) amounts to 25.9 x 19.4 inches or 65.8 x 49.4 cm, for very good quality (250 dpi) 20.7 x 15.6 inches or 52.7 x 39.5 cm, and for excellent quality (300 dpi) 17.3 x 13 inches or 43.9 x 32.9 cm. The corresponding values for the Olympus E-620 are 20.2 x 15.1 inches or 51.2 x 38.4 cm for good quality, 16.1 x 12.1 inches or 41 x 30.7 cm for very good quality, and 13.4 x 10.1 inches or 34.1 x 25.6 cm for excellent quality prints.

The Olympus E-620 has a native sensitivity range from ISO 100 to ISO 3200. The corresponding ISO settings for the Panasonic Lumix DC-GX9 are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 100-25600.

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

E-620 versus GX9 MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

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Sensor Characteristics
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Olympus E-620 Four Thirds 12.2 4032 3024none21.310.353655
2.
 
Panasonic GX9 Four Thirds 20.2 5184 38884K/30p23.112.8116374
3.
 
Olympus E-30 Four Thirds 12.2 4032 3024none21.310.453055
4.
 
Olympus E-410 Four Thirds 10.0 3648 2736none21.110.049451
5.
 
Olympus E-420 Four Thirds 10.0 3648 2736none21.510.452756
6.
 
Olympus E-450 Four Thirds 10.0 3648 2736none21.510.551256
7.
 
Olympus E-510 Four Thirds 10.0 3648 2736none21.210.044252
8.
 
Olympus E-520 Four Thirds 10.0 3648 2736none21.410.454855
9.
 
Olympus E-600 Four Thirds 12.2 4032 3024none21.510.354155
10.
 
Olympus E-P1 Four Thirds 12.2 4032 3024720/30p21.410.453655
11.
 
Olympus E-P2 Four Thirds 12.2 4032 3024720/30p21.510.450556
12.
 
Olympus E-PL1 Four Thirds 12.2 4032 3024720/30p21.510.148754
13.
 
Panasonic GX7 Four Thirds 15.8 4592 34481080/60p22.612.271870
14.
 
Panasonic GX8 Four Thirds 20.2 5184 38884K/30p23.512.680675
15.
 
Panasonic GX85 Four Thirds 15.8 4592 34484K/30p22.912.666271
16.
 
Panasonic LX100 II Four Thirds 16.8 4736 35524K/30p22.812.797972
17.
 
Panasonic ZS200 1-inch 20.0 5472 36484K/30p22.012.244964
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras cannot only take still pictures, but also record videos. The GX9 indeed provides for movie recording, while the E-620 does not. The highest resolution format that the GX9 can use is 4K/30p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the GX9 has an electronic viewfinder (2760k dots), while the E-620 has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinder in the GX9 offers a wider field of view (100%) than the one in the E-620 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the GX9 has a higher magnification (0.70x vs 0.48x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Olympus E-620 and Panasonic GX9 along with similar information for a selection of comparators.

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Core Features
  empty Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Olympus E-620optical n2.7 / 230 swivel n 1/4000s 4.0/s Y Y
2.
 
Panasonic GX92760 n3.0 / 1240 tilting Y 1/4000s 9.0/s Y Y
3.
 
Olympus E-30optical Y2.7 / 230 swivel n 1/8000s 5.0/s Y Y
4.
 
Olympus E-410optical n2.5 / 215 fixed n 1/4000s 3.0/s Y n
5.
 
Olympus E-420optical n2.7 / 215 fixed n 1/4000s 3.5/s Y n
6.
 
Olympus E-450optical n2.7 / 215 fixed n 1/4000s 3.5/s Y n
7.
 
Olympus E-510optical n2.5 / 215 fixed n 1/4000s 3.0/s Y Y
8.
 
Olympus E-520optical n2.7 / 215 fixed n 1/4000s 3.5/s Y Y
9.
 
Olympus E-600optical n2.7 / 230 swivel n 1/4000s 4.0/s Y Y
10.
 
Olympus E-P1none n3.0 / 230 fixed n 1/4000s 3.0/s n Y
11.
 
Olympus E-P2optional n3.0 / 230 fixed n 1/4000s 3.0/s n Y
12.
 
Olympus E-PL1optional n2.7 / 230 fixed n 1/2000s 3.0/s Y Y
13.
 
Panasonic GX72760 n3.0 / 1040 tilting Y 1/8000s 5.0/s Y Y
14.
 
Panasonic GX82360 n3.0 / 1040 swivel Y 1/8000s 10.0/s n Y
15.
 
Panasonic GX852765 n3.0 / 1040 tilting Y 1/4000s 8.0/s Y Y
16.
 
Panasonic LX100 II2764 n3.0 / 1240 fixed Y 1/4000s 11.0/s n Y
17.
 
Panasonic ZS2002330 n3.0 / 1240 fixed Y 1/2000s 10.0/s Y Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The GX9 has a touchscreen, while the E-620 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The E-620 has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the GX9 does not have a selfie-screen.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the GX9 is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The Panasonic GX9 has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

The E-620 writes its imaging data to Compact Flash or xD Picture cards, while the GX9 uses SDXC cards. The E-620 features dual card slots, which can be very useful in case a memory card fails. In contrast, the GX9 only has one slot.

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Connectivity comparison

For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Olympus E-620 and Panasonic Lumix DC-GX9 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Olympus E-620Y- / ----2.0---
2.
 
Panasonic GX9Ystereo / mono--micro2.0Y-Y
3.
 
Olympus E-30Y- / ----2.0---
4.
 
Olympus E-410Y- / ----2.0---
5.
 
Olympus E-420Y- / ----2.0---
6.
 
Olympus E-450Y- / ----2.0---
7.
 
Olympus E-510Y- / ----2.0---
8.
 
Olympus E-520Y- / ----2.0---
9.
 
Olympus E-600Y- / ----2.0---
10.
 
Olympus E-P1Ystereo / ---mini2.0---
11.
 
Olympus E-P2Ystereo / ---mini2.0---
12.
 
Olympus E-PL1Ystereo / ---mini2.0---
13.
 
Panasonic GX7Ystereo / mono--mini2.0YY-
14.
 
Panasonic GX8Ystereo / monoY-micro2.0YY-
15.
 
Panasonic GX85Ystereo / mono--micro2.0Y--
16.
 
Panasonic LX100 IIYstereo / mono--micro2.0Y-Y
17.
 
Panasonic ZS200-stereo / mono--micro2.0Y-Y

It is notable that the GX9 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the E-620 does not provide wifi capability.

Both the E-620 and the GX9 have been discontinued, but can regularly be found used on ebay. The E-620 was replaced by the Olympus E-600, while the GX9 does not have a direct successor. Further information on the features and operation of the E-620 and GX9 can be found, respectively, in the Olympus E-620 Manual (free pdf) or the online Panasonic GX9 Manual.

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Review summary

So how do things add up? Which of the two cameras – the Olympus E-620 or the Panasonic GX9 – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.

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Arguments in favor of the Olympus E-620:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Longer lasting: Can take more shots (500 versus 260) on a single battery charge.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More affordable: Was introduced into a lower priced segment (18 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in February 2009).

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Advantages of the Panasonic Lumix DC-GX9:

  • More detail: Has more megapixels (20.2 vs 12.2MP), which boosts linear resolution by 29%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Broader imaging potential: Can capture not only stills but also 4K/30p video.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More complete view: Has a viewfinder with a larger field of view (100% vs 95%).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.70x vs 0.48x).
  • Larger screen: Has a bigger rear LCD (3.0" vs 2.7") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1240k vs 230k dots).
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster burst: Shoots at higher frequency (9 vs 4 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • More compact: Is smaller (124x72mm vs 130x94mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 114g or 22 percent) and is thus easier to take along.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • More modern: Reflects 8 years and 11 months of technical progress since the E-620 launch.

If the count of individual advantages (bullet points above) is taken as a guide, the GX9 is the clear winner of the contest (19 : 8 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision on a new camera. A professional wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

E-620 08:19 GX9

How about other alternatives? Do the specifications of the Olympus E-620 and the Panasonic GX9 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it says little about, for example, the shooting experience and imaging performance of the E-620 and the GX9 in practical situations. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

Expert reviews

This is why expert reviews are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.

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Expert Camera Reviews
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Olympus E-6203/588/100..72/1004.5/55/5 Feb 2009 US$ 699ebay.com
2.
 
Panasonic GX94/5+4/584/1004.5/54.5/5 Feb 2018 US$ 849ebay.com
3.
 
Olympus E-30......71/1004.5/54/5 Nov 2008 US$ 1 299ebay.com
4.
 
Olympus E-410..86/100..+ +4/54.5/5 Mar 2007 US$ 699ebay.com
5.
 
Olympus E-420..85/100..+ +4/54.5/5 Mar 2008 US$ 599ebay.com
6.
 
Olympus E-450........4/54/5 Mar 2009 US$ 499ebay.com
7.
 
Olympus E-510..89/100..+ +3.5/54.5/5 Mar 2007 US$ 799ebay.com
8.
 
Olympus E-520..87/100..+ +4.5/54.5/5 May 2008 US$ 699ebay.com
9.
 
Olympus E-600..........4.5/5 Aug 2009 US$ 449ebay.com
10.
 
Olympus E-P1..+..66/1004/54.5/5 Jun 2009 US$ 799ebay.com
11.
 
Olympus E-P23/5+..69/1004/54.5/5 Nov 2009 US$ 799ebay.com
12.
 
Olympus E-PL1..86/100..69/1004/54.5/5 Feb 2010 US$ 599ebay.com
13.
 
Panasonic GX74/5+..79/1005/55/5 Aug 2013 US$ 999ebay.com
14.
 
Panasonic GX85/5+..82/1004.5/54.5/5 Jul 2015 US$ 1 199ebay.com
15.
 
Panasonic GX854.5/5+ +..82/1005/55/5 Apr 2016 US$ 799 amazon.com
16.
 
Panasonic LX100 II4.5/5+4.2/582/1004.5/54.5/5 Aug 2018 US$ 999ebay.com
17.
 
Panasonic ZS200..+ +4.5/581/1004.5/54.5/5 Feb 2018 US$ 799 amazon.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

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Other camera comparisons

Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make your choice using the following search menu. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Olympus E-620 vs Panasonic GX9

    Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.

    Camera Specifications
    Camera Model Olympus E-620 Panasonic GX9
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Four Thirds lenses Micro Four Thirds lenses
    Launch Date February 2009 February 2018
    Launch Price USD 699 USD 849
    Sensor Specs Olympus E-620 Panasonic GX9
    Sensor Technology CMOS CMOS
    Sensor Format Four Thirds Sensor Four Thirds Sensor
    Sensor Size 17.3 x 13.0 mm 17.3 x 13.0 mm
    Sensor Area 224.9 mm2 224.9 mm2
    Sensor Diagonal 21.6 mm 21.6 mm
    Crop Factor 2.0x 2.0x
    Sensor Resolution 12.2 Megapixels 20.2 Megapixels
    Image Resolution 4032 x 3024 pixels 5184 x 3888 pixels
    Pixel Pitch 4.29 μm 3.34 μm
    Pixel Density 5.42 MP/cm2 8.96 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability no Video 4K/30p Video
    ISO Setting 100 - 3,200 ISO 200 - 25,600 ISO
    ISO Boost no Enhancement 100 - 25,600 ISO
    Image Processor TruePic III+ Venus
    DXO Sensor Quality (score) 55 ..
    DXO Color Depth (bits) 21.3 ..
    DXO Dynamic Range (EV) 10.3 ..
    DXO Low Light (ISO) 536 ..
    Screen Specs Olympus E-620 Panasonic GX9
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 95% 100%
    Viewfinder Magnification 0.48x 0.70x
    Viewfinder Resolution 2760k dots
    LCD Framing Live View Live View
    Rear LCD Size 2.7inch 3.0inch
    LCD Resolution 230k dots 1240k dots
    LCD Attachment Swivel screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Olympus E-620 Panasonic GX9
    Focus System Phase-detect AF Contrast-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/4000s
    Continuous Shooting 4 shutter flaps/s 9 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/16000s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash Built-in Flash Built-in Flash
    Storage Medium CF or XD cards SDXC cards
    Single or Dual Card Slots Dual card slots Single card slot
    Connectivity Specs Olympus E-620 Panasonic GX9
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port no HDMI micro HDMI
    Wifi Support no Wifi Wifi built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Olympus E-620 Panasonic GX9
    Battery Type Olympus BLS-1 Panasonic DMW-BLG10
    Battery Life (CIPA)500 shots per charge260 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 130 x 94 x 60 mm
    (5.1 x 3.7 x 2.4 in)
    124 x 72 x 47 mm
    (4.9 x 2.8 x 1.9 in)
    Camera Weight 521 g (18.4 oz) 407 g (14.4 oz)
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