Nikon Z30 vs Olympus E-M10 II

The Nikon Z30 and the Olympus OM-D E-M10 Mark II are two digital cameras that were officially introduced, respectively, in June 2022 and August 2015. Both the Z30 and the E-M10 II are mirrorless interchangeable lens cameras that are based on an APS-C (Z30) and a Four Thirds (E-M10 II) sensor. The Nikon has a resolution of 20.7 megapixels, whereas the Olympus provides 15.9 MP.

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

Headline Specifications

Nikon Z30		Olympus E-M10 II
Mirrorless system camera		Mirrorless system camera
Nikon Z mount lenses		Micro Four Thirds lenses
20.7 MP – APS-C sensor		15.9 MP – Four Thirds sensor
4K/30p Video		1080/60p Video
ISO 100-51,200 (100 - 204,800)		ISO 200-25,600
No viewfinder, LCD framing		Electronic viewfinder (2360k dots)
3.0" LCD – 1040k dots		3.0" LCD – 1040k dots
Swivel touchscreen		Tilting touchscreen
11 shutter flaps per second		8 shutter flaps per second
Lens stabilization only		In-body stabilization
Weathersealed body		not weather sealed
330 shots per battery charge		320 shots per battery charge
128 x 74 x 60 mm, 405 g		120 x 83 x 47 mm, 390 g

Check Z30 price at
amazon.com
Check E-M10 II offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon Z30 and the Olympus OM-D E-M10 Mark II? 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

The side-by-side display below illustrates the physical size and weight of the Nikon Z30 and the Olympus E-M10 II. 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.

The E-M10 II can be obtained in three different colors (black, silver, brown), while the Z30 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 Olympus E-M10 II is notably larger (5 percent) than the Nikon Z30. However, the E-M10 II is slightly lighter (4 percent) than the Z30. It is worth mentioning in this context that the Z30 is splash and dust resistant, while the E-M10 II 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. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the Z30 gets 330 shots out of its Nikon EN-EL25 battery, while the E-M10 II can take 320 images on a single charge of its Olympus BLS-50 power pack. The power pack in the Z30 can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.

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.		Nikon Z30	128 mm	74 mm	60 mm	405 g	330	Y	Jun 2022	US$ 709	amazon.com
2.		Olympus E-M10 II	120 mm	83 mm	47 mm	390 g	320	n	Aug 2015	US$ 649	ebay.com
3.		Canon G1 X Mark III	115 mm	78 mm	51 mm	399 g	200	Y	Oct 2017	US$ 1 299	ebay.com
4.		Fujifilm X-T100	121 mm	83 mm	47 mm	448 g	430	n	May 2018	US$ 599	ebay.com
5.		Nikon D3500	124 mm	97 mm	70 mm	415 g	1550	n	Aug 2018	US$ 429	ebay.com
6.		Nikon D5300	125 mm	98 mm	76 mm	480 g	600	n	Oct 2013	US$ 799	ebay.com
7.		Nikon D5600	124 mm	97 mm	70 mm	465 g	970	n	Nov 2016	US$ 699	ebay.com
8.		Nikon Z50	127 mm	94 mm	60 mm	450 g	320	Y	Oct 2019	US$ 859	amazon.com
9.		Nikon Z fc	135 mm	94 mm	44 mm	445 g	300	n	Jun 2021	US$ 959	amazon.com
10.		Olympus E-M10	119 mm	82 mm	46 mm	396 g	320	n	Jan 2014	US$ 699	ebay.com
11.		Olympus E-M10 III	122 mm	84 mm	50 mm	410 g	330	n	Aug 2017	US$ 649	ebay.com
12.		Olympus E-P5	122 mm	69 mm	37 mm	420 g	330	n	May 2013	US$ 999	ebay.com
13.		Olympus E-PL5	111 mm	64 mm	38 mm	325 g	360	n	Sep 2012	US$ 599	ebay.com
14.		Olympus E-PL8	115 mm	67 mm	38 mm	357 g	350	n	Sep 2016	US$ 549	ebay.com
15.		Sony A6100	120 mm	67 mm	59 mm	396 g	420	n	Aug 2019	US$ 749	ebay.com
16.		Sony A6400	120 mm	67 mm	50 mm	403 g	410	Y	Jan 2019	US$ 899	amazon.com
17.		Sony ZV-E10	115 mm	64 mm	45 mm	343 g	440	n	Jul 2021	US$ 699	amazon.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
Convert to Imperial

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 E-M10 II was somewhat cheaper (by 8 percent) than the Z30 at launch, but both cameras fall into the same price category. 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 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Nikon Z30 features an APS-C sensor and the Olympus E-M10 II a Four Thirds sensor. The sensor area in the E-M10 II is 39 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 2.0. The sensor in the Z30 has a native 3:2 aspect ratio, while the one in the E-M10 II offers a 4:3 aspect.

With 20.7MP, the Z30 offers a higher resolution than the E-M10 II (15.9MP), but the Z30 nevertheless has larger individual pixels (pixel pitch of 4.22μm versus 3.76μm for the E-M10 II) due to its larger sensor. Moreover, the Z30 is a much more recent model (by 6 years and 10 months) than the E-M10 II, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels. 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 Nikon Z30 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the Z30 for good quality output (200 dots per inch) amounts to 27.8 x 18.6 inches or 70.7 x 47.1 cm, for very good quality (250 dpi) 22.3 x 14.8 inches or 56.6 x 37.7 cm, and for excellent quality (300 dpi) 18.6 x 12.4 inches or 47.1 x 31.4 cm. The corresponding values for the Olympus E-M10 II are 23 x 17.3 inches or 58.5 x 43.9 cm for good quality, 18.4 x 13.8 inches or 46.8 x 35.1 cm for very good quality, and 15.4 x 11.5 inches or 39 x 29.3 cm for excellent quality prints.

The Z30 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Nikon Z30 has a native sensitivity range from ISO 100 to ISO 51200, which can be extended to ISO 100-204800. The corresponding ISO settings for the Olympus OM-D E-M10 Mark II 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.

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

Sensor Characteristics

		Camera Model	Sensor Class	Resolution (MP)	Horiz. Pixels	Vert. Pixels	Video Format	DXO Portrait	DXO Landscape	DXO Sports	DXO Overall
1.		Nikon Z30	APS-C	20.7	5568	3712	4K/30p	24.3	13.9	2230	86
2.		Olympus E-M10 II	Four Thirds	15.9	4608	3456	1080/60p	23.1	12.5	842	73
3.		Canon G1 X Mark III	APS-C	24.0	6000	4000	1080/60p	23.8	13.2	1649	81
4.		Fujifilm X-T100	APS-C	24.0	6000	4000	4K/15p	24.0	13.4	1829	83
5.		Nikon D3500	APS-C	24.0	6000	4000	1080/60p	24.0	13.4	1851	83
6.		Nikon D5300	APS-C	24.0	6000	4000	1080/60p	24.0	13.9	1338	83
7.		Nikon D5600	APS-C	24.0	6000	4000	1080/60p	24.1	14.0	1306	84
8.		Nikon Z50	APS-C	20.7	5568	3712	4K/30p	24.1	13.6	1963	84
9.		Nikon Z fc	APS-C	20.7	5568	3712	4K/30p	24.2	13.8	2131	85
10.		Olympus E-M10	Four Thirds	15.9	4608	3456	1080/30p	22.8	12.3	884	72
11.		Olympus E-M10 III	Four Thirds	15.9	4608	3456	4K/30p	23.1	12.8	1120	74
12.		Olympus E-P5	Four Thirds	15.9	4608	3456	1080/30p	22.8	12.4	895	72
13.		Olympus E-PL5	Four Thirds	15.9	4608	3456	1080/30p	22.8	12.3	889	72
14.		Olympus E-PL8	Four Thirds	15.9	4608	3456	1080/30p	23.0	12.6	1030	73
15.		Sony A6100	APS-C	24.0	6000	4000	4K/30p	24.1	13.6	1947	84
16.		Sony A6400	APS-C	24.0	6000	4000	4K/30p	24.0	13.6	1431	83
17.		Sony ZV-E10	APS-C	24.0	6000	4000	4K/30p	24.2	13.8	2134	85
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 also of capturing video footage. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the Z30 provides a higher video resolution than the E-M10 II. It can shoot video footage at 4K/30p, while the Olympus is limited to 1080/60p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the E-M10 II has an electronic viewfinder (2360k dots), which can be very helpful when shooting in bright sunlight. In contrast, the Z30 relies on live view and the rear LCD for framing. The adjacent table lists some of the other core features of the Nikon Z30 and Olympus E-M10 II 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.		Nikon Z30	none	n	3.0 / 1040	swivel	Y	1/4000s	11.0/s	Y	n
2.		Olympus E-M10 II	2360	n	3.0 / 1040	tilting	Y	1/4000s	8.0/s	Y	Y
3.		Canon G1 X Mark III	2360	n	3.0 / 1040	swivel	Y	1/2000s	9.0/s	Y	Y
4.		Fujifilm X-T100	2360	n	3.0 / 1040	swivel	Y	1/4000s	6.0/s	Y	n
5.		Nikon D3500	optical	n	3.0 / 921	fixed	n	1/4000s	5.0/s	Y	n
6.		Nikon D5300	optical	n	3.2 / 1037	swivel	n	1/4000s	5.0/s	Y	n
7.		Nikon D5600	optical	n	3.2 / 1037	swivel	Y	1/4000s	5.0/s	Y	n
8.		Nikon Z50	2360	n	3.2 / 1040	tilting	Y	1/4000s	11.0/s	Y	n
9.		Nikon Z fc	2360	Y	3.0 / 1040	swivel	Y	1/4000s	11.0/s	n	n
10.		Olympus E-M10	1440	n	3.0 / 1037	tilting	Y	1/4000s	8.0/s	Y	Y
11.		Olympus E-M10 III	2360	n	3.0 / 1040	tilting	Y	1/4000s	8.6/s	Y	Y
12.		Olympus E-P5	optional	n	3.0 / 1037	tilting	Y	1/8000s	9.0/s	Y	Y
13.		Olympus E-PL5	optional	n	3.0 / 460	tilting	Y	1/4000s	8.0/s	n	Y
14.		Olympus E-PL8	optional	n	3.0 / 1037	tilting	Y	1/4000s	8.0/s	n	Y
15.		Sony A6100	1440	n	3.0 / 922	tilting	Y	1/4000s	11.0/s	Y	n
16.		Sony A6400	2359	n	3.0 / 922	tilting	Y	1/4000s	11.0/s	Y	n
17.		Sony ZV-E10	none	n	3.0 / 922	swivel	Y	1/4000s	11.0/s	n	n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that differentiates the E-M10 II and the Z30 is in-body image stabilization (IBIS). The E-M10 II reduces the risk of handshake-induced blur with all attached lenses, while the Z30 offers no blur reduction with lenses that themselves do not provide optical image stabilization.

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, both cameras under consideration feature an 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 Nikon Z30 and the Olympus E-M10 II both have 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.

Concerning the storage of imaging data, both the Z30 and the E-M10 II write their files to SDXC cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

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 Nikon Z30 and Olympus OM-D E-M10 Mark II 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.		Nikon Z30	Y	stereo / mono	Y	-	micro	3.2	Y	-	Y
2.		Olympus E-M10 II	Y	stereo / mono	-	-	micro	2.0	Y	-	-
3.		Canon G1 X Mark III	Y	stereo / mono	-	-	micro	2.0	Y	Y	Y
4.		Fujifilm X-T100	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
5.		Nikon D3500	Y	mono / mono	-	-	mini	2.0	-	-	Y
6.		Nikon D5300	Y	stereo / mono	Y	-	mini	2.0	Y	-	-
7.		Nikon D5600	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
8.		Nikon Z50	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
9.		Nikon Z fc	Y	stereo / mono	Y	-	micro	3.2	Y	-	Y
10.		Olympus E-M10	Y	stereo / mono	-	-	micro	2.0	Y	-	-
11.		Olympus E-M10 III	Y	stereo / mono	-	-	micro	2.0	Y	-	-
12.		Olympus E-P5	Y	stereo / mono	-	-	micro	2.0	Y	-	-
13.		Olympus E-PL5	Y	stereo / mono	-	-	mini	2.0	-	-	-
14.		Olympus E-PL8	Y	stereo / mono	-	-	micro	2.0	Y	-	-
15.		Sony A6100	Y	stereo / mono	Y	-	micro	2.0	Y	Y	Y
16.		Sony A6400	Y	stereo / mono	Y	-	micro	2.0	Y	Y	Y
17.		Sony ZV-E10	Y	stereo / mono	Y	Y	micro	3.2	Y	Y	Y

It is notable that the Z30 has a microphone port, which is missing on the E-M10 II. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.

The Z30 is a recent model that features in the current product line-up of Nikon. In contrast, the E-M10 II has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the E-M10 II was succeeded by the Olympus E-M10 III. Further information on the features and operation of the Z30 and E-M10 II can be found, respectively, in the Nikon Z30 Manual (free pdf) or the online Olympus E-M10 II Manual.

Review summary

So what conclusions can be drawn? Is the Nikon Z30 better than the Olympus E-M10 II or vice versa? Below is a summary of the relative strengths of each of the two contestants.

Arguments in favor of the Nikon Z30:

• More detail: Offers more megapixels (20.7 vs 15.9MP) with a 16% higher linear resolution.
• Better image quality: Features a larger and more technologically advanced imaging sensor.
• Richer colors: The sensor size advantage translates into images with better, more accurate colors.
• More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
• Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
• Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
• Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
• Better sound: Can connect to an external microphone for higher quality sound recording.
• 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.
• Faster burst: Shoots at higher frequency (11 vs 8 flaps/sec) to capture the decisive moment.
• Easier travel charging: Can be conveniently charged via its USB port.
• Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
• Faster data transfer: Supports a more advanced USB protocol (3.2 vs 2.0).
• Easier wireless transfer: Supports Bluetooth for image sharing without cables.
• More modern: Reflects 6 years and 10 months of technical progress since the E-M10 II launch.

Advantages of the Olympus OM-D E-M10 Mark II:

• Easier framing: Has an electronic viewfinder for image composition and settings control.
• Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
• More heavily discounted: Has been around for much longer (launched in August 2015).

If the count of individual advantages (bullet points above) is taken as a guide, the Z30 is the clear winner of the match-up (16 : 3 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 sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape 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 Nikon Z30 and the Olympus E-M10 II place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera listing 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 Z30 and the E-M10 II in practical situations. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.

Expert reviews

This is why expert reviews are important. The adjacent summary-table relays the overall verdicts of several of the most popular camera 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.		Nikon Z30	4/5	..	4/5	86/100	4.5/5	4/5	Jun 2022	US$ 709	amazon.com
2.		Olympus E-M10 II	4.5/5	+ +	..	80/100	5/5	5/5	Aug 2015	US$ 649	ebay.com
3.		Canon G1 X Mark III	5/5	+	4/5	79/100	4.5/5	4.5/5	Oct 2017	US$ 1 299	ebay.com
4.		Fujifilm X-T100	4/5	+	4.5/5	79/100	4/5	4.5/5	May 2018	US$ 599	ebay.com
5.		Nikon D3500	4/5	..	4/5	75/100	4/5	4.5/5	Aug 2018	US$ 429	ebay.com
6.		Nikon D5300	4/5	+ +	..	79/100	4.5/5	4.5/5	Oct 2013	US$ 799	ebay.com
7.		Nikon D5600	4/5	..	4/5	79/100	4.5/5	4/5	Nov 2016	US$ 699	ebay.com
8.		Nikon Z50	5/5	..	5/5	85/100	4.5/5	4.5/5	Oct 2019	US$ 859	amazon.com
9.		Nikon Z fc	4/5	..	4.5/5	86/100	5/5	4.5/5	Jun 2021	US$ 959	amazon.com
10.		Olympus E-M10	4/5	..	..	80/100	5/5	5/5	Jan 2014	US$ 699	ebay.com
11.		Olympus E-M10 III	..	+	5/5	80/100	4.5/5	4.5/5	Aug 2017	US$ 649	ebay.com
12.		Olympus E-P5	5/5	+ +	..	78/100	4.5/5	5/5	May 2013	US$ 999	ebay.com
13.		Olympus E-PL5	3/5	+ +	..	..	4.5/5	4.5/5	Sep 2012	US$ 599	ebay.com
14.		Olympus E-PL8	..	..	..	..	4.5/5	4/5	Sep 2016	US$ 549	ebay.com
15.		Sony A6100	..	..	4/5	82/100	4/5	5/5	Aug 2019	US$ 749	ebay.com
16.		Sony A6400	4/5	+	4/5	85/100	4.5/5	4/5	Jan 2019	US$ 899	amazon.com
17.		Sony ZV-E10	4/5	..	4/5	82/100	4.5/5	4.5/5	Jul 2021	US$ 699	amazon.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. Thus, a score needs to be put into the context of the launch date and the launch price 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

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