Panasonic GM1 vs Sony H300

The Panasonic Lumix DMC-GM1 and the Sony Cyber-shot DSC-H300 are two digital cameras that were revealed to the public, respectively, in October 2013 and February 2014. The GM1 is a mirrorless interchangeable lens camera, while the H300 is a fixed lens compact. The cameras are based on a Four Thirds (GM1) and a 1/2.3-inch (H300) sensor. The Panasonic has a resolution of 15.8 megapixels, whereas the Sony provides 19.9 MP.

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

Headline Specifications

Panasonic GM1		Sony H300
Mirrorless system camera		Fixed lens compact camera
Micro Four Thirds lenses		25-875mm f/3.4-6.5
15.8 MP – Four Thirds sensor		19.9 MP – 1/2.3" sensor
1080/60i Video		720/30p Video
ISO 200-25,600		ISO 80-3,200
No viewfinder, LCD framing		No viewfinder, LCD framing
3.0" LCD – 1036k dots		3.0" LCD – 460k dots
Fixed touchscreen		Fixed screen (not touch-sensitive)
5 shutter flaps per second		0.8 shutter flaps per second
230 shots per battery charge		350 shots per battery charge
99 x 55 x 30 mm, 204 g		128 x 89 x 92 mm, 590 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DMC-GM1 and the Sony Cyber-shot DSC-H300? 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.

Body comparison

An illustration of the physical size and weight of the Panasonic GM1 and the Sony H300 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All size dimensions are rounded to the nearest millimeter.

The GM1 can be obtained in three different colors (black, silver, red), while the H300 is only available in black.

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony H300 is considerably larger (109 percent) than the Panasonic GM1. In this context, it is worth noting that neither the GM1 nor the H300 are weather-sealed.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the H300 has a lens built in, whereas the GM1 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 GM1 and their specifications in the Micro Four Thirds Lens Catalog.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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.

Body Specifications

		Camera Model	Camera Width	Camera Height	Camera Depth	Camera Weight	Battery Life	Weather Sealing	Camera Launch	Launch Price	Street Price
1.		Panasonic GM1	99 mm	55 mm	30 mm	204 g	230	n	Oct 2013	US$ 749	ebay.com
2.		Sony H300	128 mm	89 mm	92 mm	590 g	350	n	Feb 2014	US$ 219	ebay.com
3.		Canon G1 X Mark II	116 mm	74 mm	66 mm	553 g	240	n	Feb 2014	US$ 799	ebay.com
4.		Leica Q Typ 116	130 mm	80 mm	93 mm	640 g	300	n	Jun 2015	US$ 4 249	ebay.com
5.		Olympus E-M10	119 mm	82 mm	46 mm	396 g	320	n	Jan 2014	US$ 699	ebay.com
6.		Panasonic FZ1000	137 mm	99 mm	131 mm	831 g	360	n	Jun 2014	US$ 899	ebay.com
7.		Panasonic G5	120 mm	83 mm	71 mm	396 g	320	n	Jul 2012	US$ 599	ebay.com
8.		Panasonic G6	122 mm	85 mm	71 mm	390 g	340	n	Apr 2013	US$ 599	ebay.com
9.		Panasonic G7	125 mm	86 mm	77 mm	410 g	350	n	May 2015	US$ 649	ebay.com
10.		Panasonic GH2	124 mm	90 mm	76 mm	442 g	330	n	Sep 2010	US$ 899	ebay.com
11.		Panasonic GM5	99 mm	60 mm	36 mm	211 g	220	n	Sep 2014	US$ 749	ebay.com
12.		Panasonic GX1	116 mm	68 mm	39 mm	318 g	320	n	Nov 2011	US$ 699	ebay.com
13.		Ricoh GR	117 mm	61 mm	35 mm	245 g	290	n	Apr 2013	US$ 799	ebay.com
14.		Sony H200	123 mm	83 mm	87 mm	530 g	240	n	Jan 2013	US$ 249	ebay.com
15.		Sony H400	130 mm	95 mm	122 mm	628 g	300	n	Feb 2014	US$ 319	ebay.com
16.		Sony HX400V	130 mm	93 mm	103 mm	660 g	300	n	Feb 2014	US$ 499	ebay.com
17.		Sony RX100 IV	102 mm	58 mm	41 mm	298 g	280	n	Jun 2015	US$ 999	ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
Convert to Imperial

The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The H300 was launched at a lower price than the GM1, 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. 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. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and 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 more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Panasonic GM1 features a Four Thirds sensor and the Sony H300 a 1/2.3-inch sensor. The sensor area in the H300 is 88 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 5.6. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.

Despite having a smaller sensor, the H300 offers a higher resolution of 19.9 megapixels, compared with 15.8 MP of the GM1. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 1.19μm versus 3.77μm for the GM1). However, it should be noted that the H300 is a somewhat more recent model (by 3 months) than the GM1, and its sensor might have benefitted from technological advances during this time that partly offset its pixel-size disadvantage. Coming back to sensor resolution, it should be mentioned that the H300 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony H300 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the H300 for good quality output (200 dots per inch) amounts to 25.8 x 19.3 inches or 65.4 x 49.1 cm, for very good quality (250 dpi) 20.6 x 15.5 inches or 52.3 x 39.3 cm, and for excellent quality (300 dpi) 17.2 x 12.9 inches or 43.6 x 32.7 cm. The corresponding values for the Panasonic GM1 are 23 x 17.2 inches or 58.3 x 43.8 cm for good quality, 18.4 x 13.8 inches or 46.7 x 35 cm for very good quality, and 15.3 x 11.5 inches or 38.9 x 29.2 cm for excellent quality prints.

The Panasonic Lumix DMC-GM1 has a native sensitivity range from ISO 200 to ISO 25600, which can be extended to ISO 125-25600. The corresponding ISO settings for the Sony Cyber-shot DSC-H300 are ISO 80 to ISO 3200 (no boost).

In terms of underlying technology, the GM1 is build around a CMOS sensor, while the H300 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.

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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.

Sensor Characteristics

		Camera Model	Sensor Class	Resolution (MP)	Horiz. Pixels	Vert. Pixels	Video Format	DXO Portrait	DXO Landscape	DXO Sports	DXO Overall
1.		Panasonic GM1	Four Thirds	15.8	4592	3448	1080/60i	22.3	11.7	660	66
2.		Sony H300	1/2.3	19.9	5152	3864	720/30p	20.1	11.4	630	45
3.		Canon G1 X Mark II	1.5-inch	13.0	4160	3120	1080/30p	21.5	10.8	581	58
4.		Leica Q Typ 116	Full Frame	24.0	6000	4000	1080/60p	24.3	12.7	2221	85
5.		Olympus E-M10	Four Thirds	15.9	4608	3456	1080/30p	22.8	12.3	884	72
6.		Panasonic FZ1000	1-inch	20.0	5472	3648	4K/30p	22.1	11.7	517	64
7.		Panasonic G5	Four Thirds	15.9	4608	3456	1080/60p	21.4	11.6	618	61
8.		Panasonic G6	Four Thirds	15.9	4608	3456	1080/60p	21.3	11.5	639	61
9.		Panasonic G7	Four Thirds	15.8	4592	3448	4K/30p	22.8	12.4	904	71
10.		Panasonic GH2	Four Thirds	15.9	4608	3456	1080/60i	21.2	11.3	655	60
11.		Panasonic GM5	Four Thirds	15.8	4592	3448	1080/60p	22.1	11.7	721	66
12.		Panasonic GX1	Four Thirds	15.8	4592	3448	1080/60p	20.8	10.6	703	55
13.		Ricoh GR	APS-C	16.1	4928	3264	1080/30p	23.6	13.5	972	78
14.		Sony H200	1/2.3	15.2	5184	2930	720/30p	19.9	11.2	529	44
15.		Sony H400	1/2.3	19.9	5152	3864	720/30p	20.1	11.4	630	45
16.		Sony HX400V	1/2.3	20.2	5184	3888	1080/60p	20.1	11.4	629	45
17.		Sony RX100 IV	1-inch	20.0	5472	3648	4K/30p	22.8	12.6	591	70
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. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the GM1 provides a higher video resolution than the H300. It can shoot video footage at 1080/60i, while the Sony is limited to 720/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The GM1 and the H300 are similar in the sense that neither of the two has a viewfinder. The images are, thus, framed using live view on the rear LCD. The adjacent table lists some of the other core features of the Panasonic GM1 and Sony H300 along with similar information for a selection of comparators.

Core Features

		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 GM1	none	n	3.0 / 1036	fixed	Y	1/500s	5.0/s	Y	n
2.		Sony H300	none	n	3.0 / 460	fixed	n	1/1500s	0.8/s	Y	Y
3.		Canon G1 X Mark II	optional	n	3.0 / 1040	tilting	Y	1/4000s	5.2/s	Y	Y
4.		Leica Q Typ 116	3680	n	3.0 / 1040	fixed	Y	1/2000s	10.0/s	n	Y
5.		Olympus E-M10	1440	n	3.0 / 1037	tilting	Y	1/4000s	8.0/s	Y	Y
6.		Panasonic FZ1000	2359	n	3.0 / 921	swivel	n	1/4000s	12.0/s	Y	Y
7.		Panasonic G5	1440	n	3.0 / 920	swivel	Y	1/4000s	6.0/s	Y	n
8.		Panasonic G6	1440	n	3.0 / 1036	swivel	Y	1/4000s	7.0/s	Y	n
9.		Panasonic G7	2360	n	3.0 / 1040	swivel	Y	1/4000s	7.0/s	Y	n
10.		Panasonic GH2	1534	n	3.0 / 460	swivel	n	1/4000s	3.0/s	Y	n
11.		Panasonic GM5	1166	n	3.0 / 921	fixed	Y	1/500s	5.8/s	n	n
12.		Panasonic GX1	optional	n	3.0 / 460	fixed	Y	1/4000s	4.2/s	Y	n
13.		Ricoh GR	optional	n	3.0 / 1230	fixed	n	1/4000s	4.0/s	Y	n
14.		Sony H200	none	n	3.0 / 460	fixed	n	1/1500s	0.8/s	Y	Y
15.		Sony H400	210	n	3.0 / 460	fixed	n	1/2000s	0.7/s	Y	Y
16.		Sony HX400V	210	n	3.0 / 921	tilting	n	1/4000s	10.0/s	Y	Y
17.		Sony RX100 IV	2359	n	3.0 / 1228	tilting	n	1/2000s	16.0/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 GM1 has a touchscreen, while the H300 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

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 GM1 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 GM1 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 GM1 writes its imaging data to SDXC cards, while the H300 uses SDXC or Memory Stick PRO Duo cards. The GM1 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the H300 cannot take advantage of Ultra High Speed SD cards.

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 DMC-GM1 and Sony Cyber-shot DSC-H300 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections

		Camera Model	Hotshoe Port	Internal Mic / Speaker	Microphone Port	Headphone Port	HDMI Port	USB Port	WiFi Support	NFC Support	Bluetooth Support
1.		Panasonic GM1	-	stereo / mono	-	-	micro	2.0	Y	-	-
2.		Sony H300	-	mono / mono	-	-	micro	2.0	Y	-	-
3.		Canon G1 X Mark II	Y	stereo / mono	-	-	mini	2.0	Y	Y	-
4.		Leica Q Typ 116	Y	stereo / mono	-	-	micro	2.0	Y	Y	-
5.		Olympus E-M10	Y	stereo / mono	-	-	micro	2.0	Y	-	-
6.		Panasonic FZ1000	Y	stereo / mono	Y	-	micro	2.0	Y	Y	-
7.		Panasonic G5	Y	stereo / mono	-	-	mini	2.0	-	-	-
8.		Panasonic G6	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
9.		Panasonic G7	Y	stereo / mono	Y	-	micro	2.0	Y	-	-
10.		Panasonic GH2	Y	stereo / mono	Y	-	mini	2.0	-	-	-
11.		Panasonic GM5	Y	stereo / mono	-	-	micro	2.0	Y	-	-
12.		Panasonic GX1	Y	stereo / mono	-	-	mini	2.0	-	-	-
13.		Ricoh GR	Y	mono / mono	-	-	micro	2.0	-	-	-
14.		Sony H200	-	mono / mono	-	-	-	2.0	-	-	-
15.		Sony H400	-	mono / mono	-	-	micro	2.0	Y	-	-
16.		Sony HX400V	Y	stereo / mono	-	-	micro	2.0	Y	Y	-
17.		Sony RX100 IV	-	stereo / mono	-	-	micro	2.0	Y	Y	-

Both the GM1 and the H300 have been discontinued, but can regularly be found used on ebay. The GM1 was replaced by the Panasonic GM5, while the H300 does not have a direct successor. Further information on the features and operation of the GM1 and H300 can be found, respectively, in the Panasonic GM1 Manual (free pdf) or the online Sony H300 Manual.

Review summary

So how do things add up? Which of the two cameras – the Panasonic GM1 or the Sony H300 – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.

Arguments in favor of the Panasonic Lumix DMC-GM1:

• Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
• 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 definition movie capture (1080/60i vs 720/30p).
• More detailed LCD: Has a higher resolution rear screen (1036k vs 460k dots).
• Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
• Faster burst: Shoots at higher frequency (5 vs 0.8 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: Accepts interchangeable lenses, so that lens characteristics can be altered.
• More compact: Is smaller (99x55mm vs 128x89mm) and thus needs less room in the bag.
• Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
• More heavily discounted: Has been on the market for longer (launched in October 2013).

Advantages of the Sony Cyber-shot DSC-H300:

• More detail: Has more megapixels (19.9 vs 15.8MP), which boosts linear resolution by 12%.
• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• Faster shutter: Has higher mechanical shutter speed (1/1500s vs 1/500s) to freeze action.
• Ready to shoot: Has an integrated lens, whereas the GM1 necessitates an extra lens.
• Longer lasting: Gets more shots (350 versus 230) out of a single battery charge.
• Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
• More affordable: Was introduced at a lower price, despite coming with a built-in lens.
• More modern: Was introduced somewhat (3 months) more recently.

If the number of relative strengths (bullet points above) is taken as a guide, the GM1 is the clear winner of the match-up (15 : 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 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.

How about other alternatives? Do the specifications of the Panasonic GM1 and the Sony H300 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best Superzoom 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 says little about, for example, the shooting experience and imaging performance of the GM1 and the H300 in practical situations. 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 where reviews by experts come in. 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.

Expert Camera Reviews

		Camera   Model	AP   score	CL   score	DCW   score	DPR   score	EPZ   score	PB   score	Camera Launch	Launch Price	Street Price
1.		Panasonic GM1	3/5	+	..	78/100	5/5	4.5/5	Oct 2013	US$ 749	ebay.com
2.		Sony H300	..	+	..	..	4.5/5	4/5	Feb 2014	US$ 219	ebay.com
3.		Canon G1 X Mark II	3/5	+	..	77/100	4/5	4.5/5	Feb 2014	US$ 799	ebay.com
4.		Leica Q Typ 116	5/5	..	..	80/100	4.5/5	4.5/5	Jun 2015	US$ 4 249	ebay.com
5.		Olympus E-M10	4/5	..	..	80/100	5/5	5/5	Jan 2014	US$ 699	ebay.com
6.		Panasonic FZ1000	4/5	+ +	..	82/100	4.5/5	4.5/5	Jun 2014	US$ 899	ebay.com
7.		Panasonic G5	3/5	+ +	..	..	4.5/5	4.5/5	Jul 2012	US$ 599	ebay.com
8.		Panasonic G6	4/5	+ +	..	..	5/5	4.5/5	Apr 2013	US$ 599	ebay.com
9.		Panasonic G7	4/5	+ +	3.5/5	80/100	5/5	4.5/5	May 2015	US$ 649	ebay.com
10.		Panasonic GH2	5/5	+ +	..	79/100	4.5/5	5/5	Sep 2010	US$ 899	ebay.com
11.		Panasonic GM5	3.5/5	+	..	77/100	5/5	4.5/5	Sep 2014	US$ 749	ebay.com
12.		Panasonic GX1	3/5	+	..	77/100	4.5/5	4.5/5	Nov 2011	US$ 699	ebay.com
13.		Ricoh GR	5/5	..	..	79/100	4.5/5	4.5/5	Apr 2013	US$ 799	ebay.com
14.		Sony H200	..	..	..	..	3.5/5	3.5/5	Jan 2013	US$ 249	ebay.com
15.		Sony H400	..	o	..	..	3.5/5	3.5/5	Feb 2014	US$ 319	ebay.com
16.		Sony HX400V	4/5	+ +	..	..	4/5	4/5	Feb 2014	US$ 499	ebay.com
17.		Sony RX100 IV	4.5/5	+ +	..	85/100	4/5	4.5/5	Jun 2015	US$ 999	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The assessments were made in relation to similar cameras of the same technological generation. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.

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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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