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Sony HX99 vs Panasonic G9

The Sony Cyber-shot DSC-HX99 and the Panasonic Lumix DC-G9 are two digital cameras that were officially introduced, respectively, in August 2018 and November 2017. The HX99 is a fixed lens compact, while the G9 is a mirrorless interchangeable lens camera. The cameras are based on a 1/2.3-inch (HX99) and a Four Thirds (G9) sensor. The Sony has a resolution of 18 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
Sony HX99
versus
Panasonic G9
Sony HX99   Panasonic G9
Fixed lens compact camera Mirrorless system camera
24-720mm f/3.5-6.4 Micro Four Thirds lenses
18 MP – 1/2.3" sensor 20.2 MP – Four Thirds sensor
4K/30p Video 4K/60p Video
ISO 80-3,200 (80 - 6,400) ISO 200-25,600
Electronic viewfinder (638k dots) Electronic viewfinder (3680k dots)
3.0" LCD – 922k dots 3.0" LCD – 1040k dots
Tilting touchscreen Swivel touchscreen
10 shutter flaps per second 20 shutter flaps per second
Lens-based stabilizationIn-body stabilization
not weather sealedWeathersealed body
370 shots per battery charge400 shots per battery charge
102 x 58 x 36 mm, 242 g 137 x 97 x 92 mm, 658 g
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Check HX99 offers at
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Check G9 offers at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Sony Cyber-shot DSC-HX99 and the Panasonic Lumix DC-G9? 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 Sony HX99 and the Panasonic G9 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 width, height and depth dimensions are rounded to the nearest millimeter.

Size Sony HX99 vs Panasonic G9
Compare HX99 versus G9 top
Comparison HX99 or G9 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic G9 is considerably larger (125 percent) than the Sony HX99. It is noteworthy in this context that the G9 is splash and dust-proof, while the HX99 does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the HX99 has a lens built in, whereas the G9 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the G9 and their specifications in the Micro Four Thirds Lens Catalog.

Concerning battery life, the HX99 gets 370 shots out of its Sony NP-BX1 battery, while the G9 can take 400 images on a single charge of its Panasonic DMW-BLF19 power pack. The battery packs of both cameras can be charged via USB, which can be very convenient when travelling.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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 (USD)
Street
Price
1.
 
Sony HX99 102 mm 58 mm 36 mm 242 g 370 n Aug 2018 449ebay.com
2.
 
Panasonic G9 137 mm 97 mm 92 mm 658 g 400 Y Nov 2017 1,699ebay.com
3.
 
Canon SX70 127 mm 91 mm 117 mm 608 g 325 n Sep 2018 549 amazon.com
4.
 
Canon SX730 110 mm 64 mm 40 mm 300 g 250 n Apr 2017 399ebay.com
5.
 
Canon SX740 110 mm 64 mm 40 mm 299 g 265 n Jul 2018 399 amazon.com
6.
 
Nikon A1000 114 mm 72 mm 41 mm 330 g 250 n Jan 2019 429ebay.com
7.
 
Nikon W300 112 mm 66 mm 29 mm 231 g 280 Y May 2017 389ebay.com
8.
 
Olympus E-M1 II 134 mm 91 mm 67 mm 574 g 440 Y Sep 2016 1,999ebay.com
9.
 
Panasonic G9 II 134 mm 102 mm 90 mm 658 g 390 Y Sep 2023 1,899 amazon.com
10.
 
Panasonic G85 128 mm 89 mm 74 mm 505 g 330 Y Sep 2016 899ebay.com
11.
 
Panasonic GH5 139 mm 98 mm 87 mm 725 g 410 Y Jan 2017 1,999ebay.com
12.
 
Panasonic GH5 II 139 mm 98 mm 87 mm 727 g 400 Y May 2021 1,699 amazon.com
13.
 
Panasonic ZS70 112 mm 67 mm 41 mm 322 g 380 n Apr 2017 449ebay.com
14.
 
Sony HX90V 102 mm 58 mm 36 mm 245 g 360 n Apr 2015 429ebay.com
15.
 
Sony HX95 102 mm 58 mm 36 mm 242 g 370 n Aug 2018 429ebay.com
16.
 
Sony HX400V 130 mm 93 mm 103 mm 660 g 300 n Feb 2014 499ebay.com
17.
 
Sony WX800 102 mm 58 mm 36 mm 233 g 370 n Oct 2018 399ebay.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 naturally be influenced heavily by the price. 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 HX99 was launched at a lower price than the G9, despite having a lens built in. 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 sensor inside a digital camera is one of the key determinants 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. 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 associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Sony HX99 features a 1/2.3-inch sensor and the Panasonic G9 a Four Thirds sensor. The sensor area in the G9 is 704 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 5.6 and 2.0. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.

Sony HX99 and Panasonic G9 sensor measures

With 20.2MP, the G9 offers a higher resolution than the HX99 (18MP), but the G9 nevertheless has larger individual pixels (pixel pitch of 3.34μm versus 1.25μm for the HX99) due to its larger sensor. However, the HX99 is a somewhat more recent model (by 9 months) than the G9, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the 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 Sony HX99 are 24.5 x 18.4 inches or 62.2 x 46.6 cm for good quality, 19.6 x 14.7 inches or 49.7 x 37.3 cm for very good quality, and 16.3 x 12.2 inches or 41.5 x 31.1 cm for excellent quality prints.

Unlike the HX99, 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 Sony Cyber-shot DSC-HX99 has a native sensitivity range from ISO 80 to ISO 3200, which can be extended to ISO 80-6400. The corresponding ISO settings for the Panasonic Lumix DC-G9 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.

HX99 versus G9 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. 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.
 
Sony HX99 1/2.3 18.0 4896 36724K/30p20.612.1105851
2.
 
Panasonic G9 Four Thirds 20.2 5184 38884K/60p23.112.8113874
3.
 
Canon SX70 1/2.3 20.2 5184 38884K/30p20.612.1106351
4.
 
Canon SX730 1/2.3 20.2 5184 38881080/60p20.511.992450
5.
 
Canon SX740 1/2.3 20.2 5184 38884K/30p20.612.1105051
6.
 
Nikon A1000 1/2.3 15.9 4608 34564K/30p20.712.2109552
7.
 
Nikon W300 1/2.3 15.9 4608 34564K/30p20.512.093850
8.
 
Olympus E-M1 II Four Thirds 20.2 5184 38884K/30p23.712.8131280
9.
 
Panasonic G9 II Four Thirds 25.0 5776 43365.7K/60p23.413.5171078
10.
 
Panasonic G85 Four Thirds 15.8 4592 34484K/30p22.812.565671
11.
 
Panasonic GH5 Four Thirds 20.2 5184 38884K/60p23.913.080777
12.
 
Panasonic GH5 II Four Thirds 20.2 5184 38884K/60p23.713.1113679
13.
 
Panasonic ZS70 1/2.3 20.2 5184 38884K/30p19.110.610636
14.
 
Sony HX90V 1/2.3 18.0 4896 36721080/60p20.211.673847
15.
 
Sony HX95 1/2.3 18.0 4896 36724K/30p20.612.1105751
16.
 
Sony HX400V 1/2.3 20.2 5184 38881080/60p20.111.462945
17.
 
Sony WX800 1/2.3 18.0 4896 36724K/30p20.612.2107051
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 two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the G9 provides a faster frame rate than the HX99. It can shoot movie footage at 4K/60p, while the Sony is limited to 4K/30p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The two cameras under review are similar with respect to both having an electronic viewfinder. However, the one in the G9 offers a substantially higher resolution than the one in the HX99 (3680k vs 638k dots). The following table reports on some other key feature differences and similarities of the Sony HX99, the Panasonic G9, and comparable cameras.

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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.
 
Sony HX99638 n3.0 / 922 tilting Y 1/2000s 10.0/s Y Y
2.
 
Panasonic G93680 Y3.0 / 1040 swivel Y 1/8000s 20.0/s n Y
3.
 
Canon SX702360 n3.0 / 922 swivel n 1/2000s 10.0/s Y Y
4.
 
Canon SX730none n3.0 / 922 tilting n 1/3200s 5.9/s Y Y
5.
 
Canon SX740none n3.0 / 922 tilting n 1/3200s 10.0/s Y Y
6.
 
Nikon A10001166 n3.0 / 1036 tilting Y 1/4000s 7.0/s Y Y
7.
 
Nikon W300none n3.0 / 921 fixed n 1/4000s 7.0/s Y Y
8.
 
Olympus E-M1 II2360 n3.0 / 1037 swivel Y 1/8000s 18.0/s n Y
9.
 
Panasonic G9 II3680 n3.0 / 1840 swivel Y 1/8000s 10.0/s n Y
10.
 
Panasonic G852360 n3.0 / 1040 swivel Y 1/4000s 9.0/s Y Y
11.
 
Panasonic GH53680 n3.2 / 1620 swivel Y 1/8000s 12.0/s n Y
12.
 
Panasonic GH5 II3680 n3.0 / 1840 swivel Y 1/8000s 12.0/s n Y
13.
 
Panasonic ZS701166 n3.0 / 1040 tilting Y 1/2000s 10.0/s Y Y
14.
 
Sony HX90V638 n3.0 / 921 tilting n 1/2000s 10.0/s Y Y
15.
 
Sony HX95638 n3.0 / 922 tilting n 1/2000s 10.0/s Y Y
16.
 
Sony HX400V210 n3.0 / 921 tilting n 1/4000s 10.0/s Y Y
17.
 
Sony WX800none n3.0 / 922 tilting Y 1/2000s 10.0/s Y Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One difference between the cameras concerns the presence of an on-board flash. The HX99 has one, while the G9 does not. While the built-in flash of the HX99 is not very powerful, it can at times be useful as a fill-in light.

Both cameras have an articulated rear screen that can be turned to be front-facing. This feature will be particularly appreciated by vloggers and photographers who are interested in taking selfies.

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 HX99 writes its imaging data to SDXC or Memory Stick PRO Duo cards, while the G9 uses SDXC cards. The G9 features dual card slots, which can be very useful in case a memory card fails. In contrast, the HX99 only has one slot. The G9 supports UHS-II cards (on both slots), while the HX99 can use UHS-I cards.

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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 Sony Cyber-shot DSC-HX99 and Panasonic Lumix DC-G9 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.
 
Sony HX99-stereo / mono--micro2.0YYY
2.
 
Panasonic G9Ystereo / monoYYfull3.0Y-Y
3.
 
Canon SX70-stereo / monoY-micro2.0Y-Y
4.
 
Canon SX730-stereo / mono--micro2.0YYY
5.
 
Canon SX740-stereo / mono--micro2.0Y-Y
6.
 
Nikon A1000-stereo / mono--micro2.0Y-Y
7.
 
Nikon W300-stereo / mono--micro2.0Y-Y
8.
 
Olympus E-M1 IIYstereo / monoYYmicro3.0Y--
9.
 
Panasonic G9 IIYstereo / monoYYfull3.2Y-Y
10.
 
Panasonic G85Ystereo / monoY-micro2.0Y--
11.
 
Panasonic GH5Ystereo / monoYYfull3.1Y-Y
12.
 
Panasonic GH5 IIYstereo / monoYYfull3.2Y-Y
13.
 
Panasonic ZS70-stereo / mono--micro2.0Y--
14.
 
Sony HX90V-stereo / mono--micro2.0YY-
15.
 
Sony HX95-stereo / mono--micro2.0YYY
16.
 
Sony HX400VYstereo / mono--micro2.0YY-
17.
 
Sony WX800-stereo / mono--micro2.0YY-

It is notable that the G9 has a microphone port, which can help to improve the quality of audio recordings by attaching an external microphone. The HX99 does not feature such a mic input.

Studio photographers will appreciate that the Panasonic G9 (unlike the HX99) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the HX99 and the G9 have been discontinued, but can regularly be found used on ebay. The G9 was replaced by the Panasonic G9 II, while the HX99 does not have a direct successor. Further information on the features and operation of the HX99 and G9 can be found, respectively, in the Sony HX99 Manual (free pdf) or the online Panasonic G9 Manual.

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Review summary

So how do things add up? Is the Sony HX99 better than the Panasonic G9 or vice versa? Below is a summary of the relative strengths of each of the two contestants.

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Arguments in favor of the Sony Cyber-shot DSC-HX99:

  • Ready to shoot: Has a lens built-in, whereas the G9 requires a separate lens.
  • More compact: Is smaller (102x58mm vs 137x97mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the G9).
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More modern: Is somewhat more recent (announced 9 months after the G9).

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Reasons to prefer the Panasonic Lumix DC-G9:

  • More detail: Has more megapixels (20.2 vs 18MP), which boosts linear resolution by 6%.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
  • Richer colors: The pixel size advantage translates into images with better, more accurate colors.
  • More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
  • Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
  • Better video: Provides higher movie framerates (4K/60p versus 4K/30p).
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • More detailed viewfinder: Has higher resolution electronic viewfinder (3680k vs 638k dots).
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • More detailed LCD: Has a higher resolution rear screen (1040k vs 922k dots).
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
  • Faster burst: Shoots at higher frequency (20 vs 10 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 flexible: Takes interchangeable lenses and can thus be used with specialty optics.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
  • More solid recording: Has a full-sized HDMI port for a sturdy connection to an external recorder.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
  • More heavily discounted: Has been on the market for longer (launched in November 2017).

If the count of relative strengths (bullet points above) is taken as a measure, the G9 is the clear winner of the contest (26 : 7 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. 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.

HX99 07:26 G9

How about other alternatives? Do the specifications of the Sony HX99 and the Panasonic G9 place the cameras among the top in their class? Find out in the latest Best Superzoom 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 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 HX99 or the G9. 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 hands-on reviews by experts 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.
 
Sony HX99........4/54.5/5 Aug 2018 449ebay.com
2.
 
Panasonic G9..+ +5/585/1005/55/5 Nov 2017 1,699ebay.com
3.
 
Canon SX70..+ +3.5/5..3.5/53.5/5 Sep 2018 549 amazon.com
4.
 
Canon SX730..+....4/54/5 Apr 2017 399ebay.com
5.
 
Canon SX740..+3.5/5..4/54/5 Jul 2018 399 amazon.com
6.
 
Nikon A1000..+ +3.5/5..3.5/53/5 Jan 2019 429ebay.com
7.
 
Nikon W300..+....4/54/5 May 2017 389ebay.com
8.
 
Olympus E-M1 II5/5+ +5/585/1004.5/54.5/5 Sep 2016 1,999ebay.com
9.
 
Panasonic G9 II5/5..4.5/587/100..4.5/5 Sep 2023 1,899 amazon.com
10.
 
Panasonic G85..+ +..84/1005/54.5/5 Sep 2016 899ebay.com
11.
 
Panasonic GH54.5/5+ +..85/1004.5/55/5 Jan 2017 1,999ebay.com
12.
 
Panasonic GH5 II4.5/5..4.5/585/1004.5/55/5 May 2021 1,699 amazon.com
13.
 
Panasonic ZS70..+ +....4/54/5 Apr 2017 449ebay.com
14.
 
Sony HX90V4/5+ +....4/54.5/5 Apr 2015 429ebay.com
15.
 
Sony HX95............ Aug 2018 429ebay.com
16.
 
Sony HX400V4/5+ +....4/54/5 Feb 2014 499ebay.com
17.
 
Sony WX800............ Oct 2018 399ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated 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 rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. 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 would like to check on the differences and similarities of other camera models, just make your choice using the following search menu. 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: Sony HX99 vs Panasonic G9

    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 Sony HX99 Panasonic G9
    Camera Type Fixed lens compact camera Mirrorless system camera
    Camera Lens 24-720mm f/3.5-6.4 Micro Four Thirds lenses
    Launch Date August 2018 November 2017
    Launch Price USD 449 USD 1,699
    Sensor Specs Sony HX99 Panasonic G9
    Sensor Technology CMOS CMOS
    Sensor Format 1/2.3" Sensor Four Thirds Sensor
    Sensor Size 6.17 x 4.55 mm 17.3 x 13.0 mm
    Sensor Area 28.0735 mm2 224.9 mm2
    Sensor Diagonal 7.7 mm 21.6 mm
    Crop Factor 5.6x 2.0x
    Sensor Resolution 18 Megapixels 20.2 Megapixels
    Image Resolution 4896 x 3672 pixels 5184 x 3888 pixels
    Pixel Pitch 1.25 μm 3.34 μm
    Pixel Density 64.04 MP/cm2 8.96 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 4K/30p Video 4K/60p Video
    ISO Setting 80 - 3,200 ISO 200 - 25,600 ISO
    ISO Boost 80 - 6,400 ISO 100 - 25,600 ISO
    Image Processor BIONZ X Venus 10
    Screen Specs Sony HX99 Panasonic G9
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.83x
    Viewfinder Resolution 638k dots 3680k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 922k dots 1040k dots
    LCD Attachment Tilting screen Swivel screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Sony HX99 Panasonic G9
    Focus System Contrast-detect AF Contrast-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/2000s 1/8000s
    Continuous Shooting 10 shutter flaps/s 20 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/32000s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image StabilizationLens-based stabilizationIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium MS or SDXC cards SDXC cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support UHS-I Dual UHS-II
    Connectivity Specs Sony HX99 Panasonic G9
    External Flash no Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.0
    HDMI Port micro HDMI full HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication NFC built-in no NFC
    Bluetooth Support Bluetooth built-in Bluetooth built-in
    Body Specs Sony HX99 Panasonic G9
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Sony NP-BX1 Panasonic DMW-BLF19
    Battery Life (CIPA)370 shots per charge400 shots per charge
    In-Camera Charging USB charging USB charging
    Body Dimensions 102 x 58 x 36 mm
    (4.0 x 2.3 x 1.4 in)
    137 x 97 x 92 mm
    (5.4 x 3.8 x 3.6 in)
    Camera Weight 242 g (8.5 oz) 658 g (23.2 oz)
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