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Panasonic G9 vs Olympus E-300

The Panasonic Lumix DC-G9 and the Olympus Evolt E-300 are two digital cameras that were announced, respectively, in November 2017 and September 2004. The G9 is a mirrorless interchangeable lens camera, while the E-300 is a DSLR. Both cameras are equipped with a Four Thirds sensor. The Panasonic has a resolution of 20.2 megapixels, whereas the Olympus provides 8 MP.

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

Headline Specifications
Panasonic G9
versus
Olympus E-300
Panasonic G9   Olympus E-300
Mirrorless system camera Digital single lens reflex
Micro Four Thirds lenses Four Thirds lenses
20.2 MP – Four Thirds sensor 8 MP – Four Thirds sensor
4K/60p Video no Video
ISO 200-25,600 ISO 100-400 (100 - 1,600)
Electronic viewfinder (3680k dots) Optical viewfinder
3.0" LCD – 1040k dots 1.8" LCD – 134k dots
Swivel touchscreen Fixed screen (not touch-sensitive)
20 shutter flaps per second 2.5 shutter flaps per second
In-body stabilizationLens stabilization only
Weathersealed bodynot weather sealed
400 shots per battery charge750 shots per battery charge
137 x 97 x 92 mm, 658 g 147 x 85 x 64 mm, 624 g
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Check E-300 offers at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DC-G9 and the Olympus Evolt E-300? 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 physical size and weight of the Panasonic G9 and the Olympus E-300 are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All size dimensions are rounded to the nearest millimeter.

Size Panasonic G9 vs Olympus E-300
Compare G9 versus E-300 top
Comparison G9 or E-300 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-300 is notably smaller (6 percent) than the Panasonic G9. Moreover, the E-300 is markedly lighter (5 percent) than the G9. It is worth mentioning in this context that the G9 is splash and dust resistant, while the E-300 does not feature any corresponding weather-sealing.

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 Micro Four Thirds Lens Catalog (G9) and the Four Thirds Lens Catalog (E-300). Mirrorless cameras, such as the Panasonic G9, have moreover the advantage that they have a relatively short flange to focal plane distance and can thus use many lenses from other systems via adapters.

Concerning battery life, the G9 gets 400 shots out of its Panasonic DMW-BLF19 battery, while the E-300 can take 750 images on a single charge of its Olympus BLM-1 power pack. The power pack in the G9 can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.

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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 (USD)
Street
Price
1.
 
Panasonic G9 137 mm 97 mm 92 mm 658 g 400 Y Nov 2017 1,699ebay.com
2.
 
Olympus E-300 147 mm 85 mm 64 mm 624 g 750 n Sep 2004 799ebay.com
3.
 
Leica Digilux 3 146 mm 87 mm 77 mm 606 g 750 n Sep 2006 1,499ebay.com
4.
 
Olympus E-1 141 mm 104 mm 81 mm 738 g 750 Y Jun 2003 1,699ebay.com
5.
 
Olympus E-330 140 mm 87 mm 72 mm 637 g 750 n Jan 2006 999ebay.com
6.
 
Olympus E-400 130 mm 91 mm 53 mm 435 g 500 n Sep 2006 699ebay.com
7.
 
Olympus E-500 130 mm 95 mm 66 mm 479 g 750 n Sep 2005 599ebay.com
8.
 
Olympus E-M1 II 134 mm 91 mm 67 mm 574 g 440 Y Sep 2016 1,999ebay.com
9.
 
Olympus E-M1 III 134 mm 91 mm 69 mm 580 g 420 Y Feb 2020 1,799ebay.com
10.
 
Panasonic G9 II 134 mm 102 mm 90 mm 658 g 390 Y Sep 2023 1,899 amazon.com
11.
 
Panasonic G85 128 mm 89 mm 74 mm 505 g 330 Y Sep 2016 899ebay.com
12.
 
Panasonic GH4 133 mm 93 mm 84 mm 560 g 500 Y Feb 2014 1,499ebay.com
13.
 
Panasonic GH5 139 mm 98 mm 87 mm 725 g 410 Y Jan 2017 1,999ebay.com
14.
 
Panasonic GH5 II 139 mm 98 mm 87 mm 727 g 400 Y May 2021 1,699 amazon.com
15.
 
Panasonic GH5s 139 mm 98 mm 87 mm 660 g 440 Y Jan 2018 2,499 amazon.com
16.
 
Panasonic GX8 133 mm 78 mm 63 mm 487 g 330 Y Jul 2015 1,199ebay.com
17.
 
Panasonic GX9 124 mm 72 mm 47 mm 407 g 260 n Feb 2018 849ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

Any camera decision will obviously take relative prices into account. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The E-300 was launched at a markedly lower price (by 53 percent) than the G9, which puts it into a different market segment. 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.

Sensor comparison

The size of the imaging sensor is a crucial determinant of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units in a sensor of the same technological generation. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras 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.

Panasonic G9 and Olympus E-300 sensor measures

While the two cameras under review share the same sensor size, the G9 offers a higher resolution of 20.2 megapixels, compared with 8 MP of the E-300. This megapixels advantage translates into a 59 percent gain in linear resolution. On the other hand, these sensor specs imply that the G9 has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.34μm versus 5.30μm for the E-300). In this context, it should be noted, however, that the G9 is much more recent (by 13 years and 1 month) than the E-300, 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 G9 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Panasonic G9 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the G9 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-300 are 16.3 x 12.2 inches or 41.5 x 31.1 cm for good quality, 13.1 x 9.8 inches or 33.2 x 24.9 cm for very good quality, and 10.9 x 8.2 inches or 27.6 x 20.7 cm for excellent quality prints.

Unlike the E-300, the G9 has the capacity to capture high quality composite images (80.6MP) by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).

The Panasonic Lumix DC-G9 has a native sensitivity range from ISO 200 to ISO 25600, which can be extended to ISO 100-25600. The corresponding ISO settings for the Olympus Evolt E-300 are ISO 100 to ISO 400, with the possibility to increase the ISO range to 100-1600.

In terms of underlying technology, the G9 is build around a CMOS sensor, while the E-300 uses a CCD imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

G9 versus E-300 MP

For many cameras, data on sensor performance has been reported by DXO Mark. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). 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.
 
Panasonic G9 Four Thirds 20.2 5184 38884K/60p23.112.8113874
2.
 
Olympus E-300 Four Thirds 8.0 3264 2448none20.410.1-4048
3.
 
Leica Digilux 3 Four Thirds 7.4 3136 2352none21.010.612753
4.
 
Olympus E-1 Four Thirds 4.9 2560 1920none20.09.7-14544
5.
 
Olympus E-330 Four Thirds 7.4 3136 2352none20.810.47352
6.
 
Olympus E-400 Four Thirds 10.0 3648 2736none21.010.612753
7.
 
Olympus E-500 Four Thirds 8.0 3264 2448none20.710.34551
8.
 
Olympus E-M1 II Four Thirds 20.2 5184 38884K/30p23.712.8131280
9.
 
Olympus E-M1 III Four Thirds 20.2 5184 38884K/30p23.313.1135676
10.
 
Panasonic G9 II Four Thirds 25.0 5776 43365.7K/60p23.413.5171078
11.
 
Panasonic G85 Four Thirds 15.8 4592 34484K/30p22.812.565671
12.
 
Panasonic GH4 Four Thirds 15.9 4608 34564K/30p23.212.879174
13.
 
Panasonic GH5 Four Thirds 20.2 5184 38884K/60p23.913.080777
14.
 
Panasonic GH5 II Four Thirds 20.2 5184 38884K/60p23.713.1113679
15.
 
Panasonic GH5s Four Thirds 9.9 3680 27004K/60p23.112.8115474
16.
 
Panasonic GX8 Four Thirds 20.2 5184 38884K/30p23.512.680675
17.
 
Panasonic GX9 Four Thirds 20.2 5184 38884K/30p23.112.8116374
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras are not only capable of taking still images, but can also record movies. The G9 indeed provides movie recording capabilities, while the E-300 does not. The highest resolution format that the G9 can use is 4K/60p.

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the G9 has an electronic viewfinder (3680k dots), while the E-300 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 G9 offers a wider field of view (100%) than the one in the E-300 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the G9 has a higher magnification (0.83x vs 0.5x), 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 Panasonic G9 and Olympus E-300 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.
 
Panasonic G93680 Y3.0 / 1040 swivel Y 1/8000s 20.0/s n Y
2.
 
Olympus E-300optical n1.8 / 134 fixed n 1/4000s 2.5/s Y n
3.
 
Leica Digilux 3optical n2.5 / 207 fixed n 1/4000s 3.0/s Y n
4.
 
Olympus E-1optical Y1.8 / 134 fixed n 1/4000s 3.0/s n n
5.
 
Olympus E-330optical n2.5 / 215 tilting n 1/4000s 3.0/s Y n
6.
 
Olympus E-400optical n2.5 / 215 fixed n 1/4000s 3.0/s Y n
7.
 
Olympus E-500optical n2.5 / 215 fixed n 1/4000s 2.5/s Y n
8.
 
Olympus E-M1 II2360 n3.0 / 1037 swivel Y 1/8000s 18.0/s n Y
9.
 
Olympus E-M1 III2360 n3.0 / 1037 swivel Y 1/8000s 18.0/s n Y
10.
 
Panasonic G9 II3680 n3.0 / 1840 swivel Y 1/8000s 10.0/s n Y
11.
 
Panasonic G852360 n3.0 / 1040 swivel Y 1/4000s 9.0/s Y Y
12.
 
Panasonic GH42359 n3.0 / 1036 swivel Y 1/8000s 12.0/s Y n
13.
 
Panasonic GH53680 n3.2 / 1620 swivel Y 1/8000s 12.0/s n Y
14.
 
Panasonic GH5 II3680 n3.0 / 1840 swivel Y 1/8000s 12.0/s n Y
15.
 
Panasonic GH5s3680 n3.2 / 1620 swivel Y 1/8000s 12.0/s n n
16.
 
Panasonic GX82360 n3.0 / 1040 swivel Y 1/8000s 10.0/s n Y
17.
 
Panasonic GX92760 n3.0 / 1240 tilting Y 1/4000s 9.0/s Y Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that is present on the G9, but is missing on the E-300 is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.

The G9 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 E-300 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 G9 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 G9 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 G9 writes its imaging data to SDXC cards, while the E-300 uses Compact Flash or xD Picture cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails.

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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 Panasonic Lumix DC-G9 and Olympus Evolt E-300 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.
 
Panasonic G9Ystereo / monoYYfull3.0Y-Y
2.
 
Olympus E-300Y- / ----2.0---
3.
 
Leica Digilux 3Ystereo / mono---2.0---
4.
 
Olympus E-1Y- / ----2.0---
5.
 
Olympus E-330Y- / ----2.0---
6.
 
Olympus E-400Y- / ----2.0---
7.
 
Olympus E-500Y- / ----2.0---
8.
 
Olympus E-M1 IIYstereo / monoYYmicro3.0Y--
9.
 
Olympus E-M1 IIIYstereo / monoYYmicro3.1Y-Y
10.
 
Panasonic G9 IIYstereo / monoYYfull3.2Y-Y
11.
 
Panasonic G85Ystereo / monoY-micro2.0Y--
12.
 
Panasonic GH4Ystereo / monoYYmicro2.0YY-
13.
 
Panasonic GH5Ystereo / monoYYfull3.1Y-Y
14.
 
Panasonic GH5 IIYstereo / monoYYfull3.2Y-Y
15.
 
Panasonic GH5sYstereo / monoYYfull3.1Y-Y
16.
 
Panasonic GX8Ystereo / monoY-micro2.0YY-
17.
 
Panasonic GX9Ystereo / mono--micro2.0Y-Y

It is notable that the G9 offers wifi support, while the E-300 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

Studio photographers will appreciate that the Panasonic G9 (unlike the E-300) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the G9 and the E-300 have been discontinued, but can regularly be found used on ebay. The E-300 was replaced by the Olympus E-330, while the G9 was followed by the Panasonic G9 II. Further information on the features and operation of the G9 and E-300 can be found, respectively, in the Panasonic G9 Manual (free pdf) or the online Olympus E-300 Manual.

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Review summary

So what conclusions can be drawn? Is the Panasonic G9 better than the Olympus E-300 or vice versa? The listing below highlights the relative strengths of the two models.

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Arguments in favor of the Panasonic Lumix DC-G9:

  • More detail: Offers more megapixels (20.2 vs 8MP) with a 59% higher linear resolution.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Broader imaging potential: Can record not only still images but also 4K/60p movies.
  • 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 (0.83x vs 0.5x).
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.0" vs 1.8") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1040k vs 134k dots).
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (20 vs 2.5 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.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
  • Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
  • 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.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • More modern: Reflects 13 years and 1 month of technical progress since the E-300 launch.

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Advantages of the Olympus Evolt E-300:

  • 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.
  • Longer lasting: Gets more shots (750 versus 400) out of a single battery charge.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • More affordable: Was introduced into a lower priced category (53 percent cheaper at launch).
  • More heavily discounted: Has been around for much longer (launched in September 2004).

If the count of relative strengths (bullet points above) is taken as a measure, the G9 is the clear winner of the match-up (26 : 6 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. A professional wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

G9 26:06 E-300

How about other alternatives? Do the specifications of the Panasonic G9 and the Olympus E-300 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best DSLR Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the G9 or the E-300. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

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 (USD)
Street
Price
1.
 
Panasonic G9..+ +5/585/1005/55/5 Nov 2017 1,699ebay.com
2.
 
Olympus E-300......+o4.5/5 Sep 2004 799ebay.com
3.
 
Leica Digilux 3............ Sep 2006 1,499ebay.com
4.
 
Olympus E-1......+o.. Jun 2003 1,699ebay.com
5.
 
Olympus E-330......+o.. Jan 2006 999ebay.com
6.
 
Olympus E-400..85/100....4/54/5 Sep 2006 699ebay.com
7.
 
Olympus E-500..76/100..+ +.... Sep 2005 599ebay.com
8.
 
Olympus E-M1 II5/5+ +5/585/1004.5/54.5/5 Sep 2016 1,999ebay.com
9.
 
Olympus E-M1 III5/5..5/583/1004.5/54/5 Feb 2020 1,799ebay.com
10.
 
Panasonic G9 II5/5..4.5/587/100..4.5/5 Sep 2023 1,899 amazon.com
11.
 
Panasonic G85..+ +..84/1005/54.5/5 Sep 2016 899ebay.com
12.
 
Panasonic GH45/5+ +..85/1005/55/5 Feb 2014 1,499ebay.com
13.
 
Panasonic GH54.5/5+ +..85/1004.5/55/5 Jan 2017 1,999ebay.com
14.
 
Panasonic GH5 II4.5/5..4.5/585/1004.5/55/5 May 2021 1,699 amazon.com
15.
 
Panasonic GH5s....4.5/584/1004.5/54.5/5 Jan 2018 2,499 amazon.com
16.
 
Panasonic GX85/5+..82/1004.5/54.5/5 Jul 2015 1,199ebay.com
17.
 
Panasonic GX94/5+4/584/1004.5/54.5/5 Feb 2018 849ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date 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 a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications: Panasonic G9 vs Olympus E-300

    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 Panasonic G9 Olympus E-300
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Micro Four Thirds lenses Four Thirds lenses
    Launch Date November 2017 September 2004
    Launch Price USD 1,699 USD 799
    Sensor Specs Panasonic G9 Olympus E-300
    Sensor Technology CMOS CCD
    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 20.2 Megapixels 8 Megapixels
    Image Resolution 5184 x 3888 pixels 3264 x 2448 pixels
    Pixel Pitch 3.34 μm 5.30 μm
    Pixel Density 8.96 MP/cm2 3.55 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 4K/60p Video no Video
    ISO Setting 200 - 25,600 ISO 100 - 400 ISO
    ISO Boost 100 - 25,600 ISO 100 - 1,600 ISO
    Image Processor Venus 10 TruePic
    Screen Specs Panasonic G9 Olympus E-300
    Viewfinder Type Electronic viewfinder Optical viewfinder
    Viewfinder Field of View 100% 95%
    Viewfinder Magnification 0.83x 0.5x
    Viewfinder Resolution 3680k dots
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View
    Rear LCD Size 3.0inch 1.8inch
    LCD Resolution 1040k dots 134k dots
    LCD Attachment Swivel screen Fixed screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Panasonic G9 Olympus E-300
    Focus System Contrast-detect AF Phase-detect AF
    Manual Focusing AidFocus Peakingno Peaking Feature
    Continuous Shooting 20 shutter flaps/s 2.5 shutter flaps/s
    Electronic Shutterup to 1/32000sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationIn-body stabilizationLens stabilization only
    Fill Flash no On-Board Flash Built-in Flash
    Storage Medium SDXC cards CF or XD cards
    Single or Dual Card Slots Dual card slots Dual card slots
    Connectivity Specs Panasonic G9 Olympus E-300
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 3.0 USB 2.0
    HDMI Port full HDMI no HDMI
    Microphone Port External MIC port no MIC socket
    Headphone Socket Headphone port no Headphone port
    Wifi Support Wifi built-in no Wifi
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Panasonic G9 Olympus E-300
    Environmental SealingWeathersealed bodynot weather sealed
    Battery Type Panasonic DMW-BLF19 Olympus BLM-1
    Battery Life (CIPA)400 shots per charge750 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 137 x 97 x 92 mm
    (5.4 x 3.8 x 3.6 in)
    147 x 85 x 64 mm
    (5.8 x 3.3 x 2.5 in)
    Camera Weight 658 g (23.2 oz) 624 g (22.0 oz)
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