Nikon D3100 vs Z9
The Nikon D3100 and the Nikon Z9 are two digital cameras that were officially introduced, respectively, in August 2010 and October 2021. The D3100 is a DSLR, while the Z9 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (D3100) and a full frame (Z9) sensor. The D3100 has a resolution of 14.2 megapixels, whereas the Z9 provides 45.4 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D3100 and the Nikon Z9? 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 Nikon D3100 and the Nikon Z9 is provided 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.
The D3100 can be obtained in two different colors (black, red), while the Z9 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 Nikon Z9 is considerably larger (88 percent) than the Nikon D3100. Moreover, the Z9 is substantially heavier (165 percent) than the D3100. It is noteworthy in this context that the Z9 is splash and dust-proof, while the D3100 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 D3100 gets 550 shots out of its Nikon EN-EL14 battery, while the Z9 can take 740 images on a single charge of its Nikon EN-EL18d power pack. As can be seen in the images above, the Z9 has a battery grip built in. This facilitates image-taking in portrait orientation and gives it additional battery power. In order to provide similar functionality for the D3100, there are third party battery grips available as optional accessories (see here on ebay). The power pack in the Z9 can be charged via the USB port, which can be very convenient 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.
Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price (USD) |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Nikon D3100 | 124 mm | 96 mm | 75 mm | 505 g | 550 | n | Aug 2010 | 599 | ebay.com | |
2. | Nikon Z9 | 149 mm | 150 mm | 91 mm | 1340 g | 740 | Y | Oct 2021 | 5,499 | amazon.com | |
3. | Canon 1D X Mark III | 158 mm | 168 mm | 83 mm | 1440 g | 2850 | Y | Jan 2020 | 6,499 | amazon.com | |
4. | Nikon D6 | 160 mm | 163 mm | 92 mm | 1270 g | 3580 | Y | Feb 2020 | 6,499 | amazon.com | |
5. | Nikon D40 | 124 mm | 94 mm | 64 mm | 522 g | 470 | n | Nov 2006 | 499 | ebay.com | |
6. | Nikon D40X | 124 mm | 94 mm | 64 mm | 522 g | 520 | n | Mar 2007 | 729 | ebay.com | |
7. | Nikon D60 | 126 mm | 94 mm | 64 mm | 522 g | 500 | n | Jan 2008 | 629 | ebay.com | |
8. | Nikon D3000 | 126 mm | 97 mm | 64 mm | 536 g | 500 | n | Jul 2009 | 599 | ebay.com | |
9. | Nikon D3200 | 125 mm | 96 mm | 77 mm | 505 g | 540 | n | Apr 2012 | 599 | ebay.com | |
10. | Nikon D5000 | 127 mm | 104 mm | 80 mm | 590 g | 510 | n | Apr 2009 | 749 | ebay.com | |
11. | Nikon D5100 | 128 mm | 97 mm | 79 mm | 560 g | 660 | n | Apr 2011 | 749 | ebay.com | |
12. | Nikon D7000 | 132 mm | 105 mm | 77 mm | 780 g | 1050 | Y | Sep 2010 | 1,499 | ebay.com | |
13. | Nikon Z7 | 134 mm | 101 mm | 67 mm | 675 g | 330 | Y | Aug 2018 | 3,399 | ebay.com | |
14. | Nikon Z7 II | 134 mm | 101 mm | 70 mm | 705 g | 420 | Y | Oct 2020 | 2,999 | amazon.com | |
15. | Nikon Z8 | 144 mm | 119 mm | 83 mm | 910 g | 340 | Y | May 2023 | 3,999 | amazon.com | |
16. | Sony NEX-5N | 111 mm | 59 mm | 38 mm | 269 g | 460 | n | Aug 2011 | 699 | ebay.com | |
17. | Sony NEX-C3 | 110 mm | 60 mm | 33 mm | 225 g | 400 | n | Jun 2011 | 599 | ebay.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 D3100 was launched at a markedly lower price (by 89 percent) than the Z9, 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. 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. 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 D3100 features an APS-C sensor and the Nikon Z9 a full frame sensor. The sensor area in the Z9 is 141 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Technology-wise, the Z9 uses a more advanced image processing engine (EXPEED 7) than the D3100 (EXPEED 2), with benefits for noise reduction, color accuracy, and processing speed.
With 45.4MP, the Z9 offers a higher resolution than the D3100 (14.2MP), but the Z9 has smaller individual pixels (pixel pitch of 4.35μm versus 5.01μm for the D3100). Yet, the Z9 is a much more recent model (by 11 years and 2 months) than the D3100, and its sensor will 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 the Z9 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Nikon Z9 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the Z9 for good quality output (200 dots per inch) amounts to 41.3 x 27.5 inches or 104.9 x 69.9 cm, for very good quality (250 dpi) 33 x 22 inches or 83.9 x 55.9 cm, and for excellent quality (300 dpi) 27.5 x 18.3 inches or 69.9 x 46.6 cm. The corresponding values for the Nikon D3100 are 23 x 15.4 inches or 58.5 x 39 cm for good quality, 18.4 x 12.3 inches or 46.8 x 31.2 cm for very good quality, and 15.4 x 10.2 inches or 39 x 26 cm for excellent quality prints.
The Z9 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Nikon D3100 has a native sensitivity range from ISO 100 to ISO 3200, which can be extended to ISO 100-12800. The corresponding ISO settings for the Nikon Z9 are ISO 64 to ISO 25600, with the possibility to increase the ISO range to 32-102400.
In terms of underlying technology, the D3100 is build around a CMOS sensor, while the Z9 uses a Stacked BSI-CMOS 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.
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"). Of the two cameras under consideration, the Z9 offers substantially better image quality than the D3100 (overall score 31 points higher). The advantage is based on 3.8 bits higher color depth, 3.1 EV in additional dynamic range, and 1.4 stops in additional low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Nikon D3100 | APS-C | 14.2 | 4608 | 3072 | 1080/24p | 22.5 | 11.3 | 919 | 67 | |
2. | Nikon Z9 | Full Frame | 45.4 | 8256 | 5504 | 8K/30p | 26.3 | 14.4 | 2451 | 98 | |
3. | Canon 1D X Mark III | Full Frame | 20.0 | 5472 | 3648 | 4K/60p | 24.2 | 14.5 | 3248 | 91 | |
4. | Nikon D6 | Full Frame | 20.7 | 5568 | 3712 | 4K/30p | 25.3 | 14.3 | 2886 | 95 | |
5. | Nikon D40 | APS-C | 6.0 | 3008 | 2000 | none | 21.0 | 11.0 | 561 | 56 | |
6. | Nikon D40X | APS-C | 10.0 | 3872 | 2592 | none | 22.4 | 11.4 | 516 | 63 | |
7. | Nikon D60 | APS-C | 10.0 | 3872 | 2592 | none | 22.5 | 11.4 | 562 | 65 | |
8. | Nikon D3000 | APS-C | 10.0 | 3872 | 2592 | none | 22.3 | 11.1 | 563 | 62 | |
9. | Nikon D3200 | APS-C | 24.1 | 6016 | 4000 | 1080/30p | 24.1 | 13.2 | 1131 | 81 | |
10. | Nikon D5000 | APS-C | 12.2 | 4288 | 2848 | 720/24p | 22.7 | 12.5 | 868 | 72 | |
11. | Nikon D5100 | APS-C | 16.1 | 4928 | 3264 | 1080/30p | 23.5 | 13.6 | 1183 | 80 | |
12. | Nikon D7000 | APS-C | 16.1 | 4928 | 3264 | 1080/24p | 23.5 | 13.9 | 1167 | 80 | |
13. | Nikon Z7 | Full Frame | 45.4 | 8256 | 5504 | 4K/30p | 26.3 | 14.6 | 2668 | 99 | |
14. | Nikon Z7 II | Full Frame | 45.4 | 8256 | 5504 | 4K/60p | 26.3 | 14.7 | 2841 | 100 | |
15. | Nikon Z8 | Full Frame | 45.4 | 8256 | 5504 | 8K/30p | 26.3 | 14.2 | 2548 | 98 | |
16. | Sony NEX-5N | APS-C | 16.0 | 4912 | 3264 | 1080/60i | 23.6 | 12.7 | 1079 | 77 | |
17. | Sony NEX-C3 | APS-C | 16.0 | 4912 | 3264 | 720/30p | 22.7 | 12.2 | 1083 | 73 | |
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 Z9 provides a better video resolution than the D3100. It can shoot movie footage at 8K/30p, while the D3100 is limited to 1080/24p.
Feature comparison
Apart from body and sensor, cameras can and do differ across a range of features. For example, the Z9 has an electronic viewfinder (3690k dots), while the D3100 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 Z9 offers a wider field of view (100%) than the one in the D3100 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the Z9 has a higher magnification (0.80x vs 0.53x), 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 Nikon D3100 and Nikon Z9 along with similar information for a selection of comparators.
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 D3100 | optical | n | 3.0 / 230 | fixed | n | 1/4000s | 3.0/s | Y | n | |
2. | Nikon Z9 | 3690 | Y | 3.2 / 2089 | full-flex | Y | 1/32000s | 30.0/s | n | Y | |
3. | Canon 1D X Mark III | optical | Y | 3.2 / 2100 | fixed | Y | 1/8000s | 20.0/s | n | n | |
4. | Nikon D6 | optical | Y | 3.2 / 2359 | fixed | Y | 1/8000s | 14.0/s | n | n | |
5. | Nikon D40 | optical | n | 2.5 / 230 | fixed | n | 1/4000s | 2.5/s | Y | n | |
6. | Nikon D40X | optical | n | 2.5 / 230 | fixed | n | 1/4000s | 3.0/s | Y | n | |
7. | Nikon D60 | optical | n | 2.5 / 230 | fixed | n | 1/4000s | 3.0/s | Y | n | |
8. | Nikon D3000 | optical | n | 3.0 / 230 | fixed | n | 1/4000s | 3.0/s | Y | n | |
9. | Nikon D3200 | optical | n | 3.0 / 921 | fixed | n | 1/4000s | 4.0/s | Y | n | |
10. | Nikon D5000 | optical | n | 2.7 / 230 | full-flex | n | 1/4000s | 4.0/s | Y | n | |
11. | Nikon D5100 | optical | n | 3.0 / 921 | swivel | n | 1/4000s | 4.0/s | Y | n | |
12. | Nikon D7000 | optical | Y | 3.0 / 921 | fixed | n | 1/8000s | 6.0/s | Y | n | |
13. | Nikon Z7 | 3690 | Y | 3.2 / 2100 | tilting | Y | 1/8000s | 9.0/s | n | Y | |
14. | Nikon Z7 II | 3690 | Y | 3.2 / 2100 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
15. | Nikon Z8 | 3690 | Y | 3.2 / 2089 | full-flex | Y | 1/32000s | 30.0/s | n | Y | |
16. | Sony NEX-5N | optional | n | 3.0 / 920 | tilting | Y | 1/4000s | 10.0/s | n | n | |
17. | Sony NEX-C3 | optional | n | 3.0 / 920 | tilting | n | 1/4000s | 5.5/s | n | n | |
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 D3100 has one, while the Z9 does not. While the built-in flash of the D3100 is not very powerful, it can at times be useful as a fill-in light.
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 Z9 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 Nikon Z9 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 D3100 writes its imaging data to SDXC cards, while the Z9 uses CFexpress (type B) or XQD cards. The Z9 features dual card slots, which can be very useful in case a memory card fails. In contrast, the D3100 only has one slot.
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 D3100 and Nikon Z9 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Camera Model |
Hotshoe Port |
Internal Mic / Speaker |
Microphone Port |
Headphone Port |
HDMI Port |
USB Port |
WiFi Support |
NFC Support |
Bluetooth Support |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Nikon D3100 | Y | mono / mono | - | - | mini | 2.0 | - | - | - | |
2. | Nikon Z9 | Y | stereo / mono | Y | Y | full | 3.2 | Y | - | Y | |
3. | Canon 1D X Mark III | Y | mono / mono | Y | Y | mini | 3.1 | Y | - | Y | |
4. | Nikon D6 | Y | stereo / mono | Y | Y | mini | 3.1 | Y | - | Y | |
5. | Nikon D40 | Y | - / - | - | - | - | 2.0 | - | - | - | |
6. | Nikon D40X | Y | - / - | - | - | - | 2.0 | - | - | - | |
7. | Nikon D60 | Y | - / - | - | - | - | 2.0 | - | - | - | |
8. | Nikon D3000 | Y | - / - | - | - | - | 2.0 | - | - | - | |
9. | Nikon D3200 | Y | mono / mono | Y | - | mini | 2.0 | - | - | - | |
10. | Nikon D5000 | Y | mono / mono | - | - | mini | 2.0 | - | - | - | |
11. | Nikon D5100 | Y | mono / mono | Y | - | mini | 2.0 | - | - | - | |
12. | Nikon D7000 | Y | mono / mono | Y | - | mini | 2.0 | - | - | - | |
13. | Nikon Z7 | Y | stereo / mono | Y | Y | micro | 3.1 | Y | - | Y | |
14. | Nikon Z7 II | Y | stereo / mono | Y | Y | micro | 3.2 | Y | - | Y | |
15. | Nikon Z8 | Y | stereo / mono | Y | Y | full | 3.2 | Y | - | Y | |
16. | Sony NEX-5N | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
17. | Sony NEX-C3 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - |
It is notable that the Z9 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the D3100 does not provide wifi capability.
Studio photographers will appreciate that the Nikon Z9 (unlike the D3100) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Travel and landscape photographers will find it useful that the Z9 has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.
The Z9 is a recent model that features in the current product line-up of Nikon. In contrast, the D3100 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the D3100 was succeeded by the Nikon D3200. Further information on the features and operation of the D3100 and Z9 can be found, respectively, in the Nikon D3100 Manual (free pdf) or the online Nikon Z9 Manual.
Review summary
So what conclusions can be drawn? Is the Nikon D3100 better than the Nikon Z9 or vice versa? Below is a summary of the relative strengths of each of the two contestants.
Arguments in favor of the Nikon D3100:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- More compact: Is smaller (124x96mm vs 149x150mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 835g or 62 percent) and hence easier to carry around.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More affordable: Was introduced into a lower priced category (89 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in August 2010).
Advantages of the Nikon Z9:
- More detail: Has more megapixels (45.4 vs 14.2MP), which boosts linear resolution by 79%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better image quality: Scores substantially higher (31 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (3.8 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (3.1 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (1.4 stops ISO advantage).
- Better jpgs: Has a more modern image processing engine (EXPEED 7 vs EXPEED 2).
- Better video: Provides higher definition movie capture (8K/30p vs 1080/24p).
- 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.
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- 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 (0.80x vs 0.53x).
- Easier setting verification: Features a control panel on top to check shooting parameters.
- Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (2089k vs 230k dots).
- More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- Faster shutter: Has higher mechanical shutter speed (1/32000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (30 vs 3 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 portrait friendly: Features an integrated vertical grip for easier portrait shooting.
- Longer lasting: Gets more shots (740 versus 550) out of a single battery charge.
- Easier travel charging: Can be conveniently charged via its USB port.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- Easier geotagging: Features an internal GPS sensor to log localization data.
- Faster data transfer: Supports a more advanced USB protocol (3.2 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.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- More modern: Reflects 11 years and 2 months of technical progress since the D3100 launch.
If the count of individual advantages (bullet points above) is taken as a guide, the Z9 is the clear winner of the contest (37 : 7 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 D3100 and the Nikon Z9 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the comparison of 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 D3100 and the Z9 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.
Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price (USD) |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Nikon D3100 | 5/5 | + + | .. | 72/100 | 4.5/5 | 4.5/5 | Aug 2010 | 599 | ebay.com | |
2. | Nikon Z9 | 5/5 | .. | 4.5/5 | 94/100 | 5/5 | 5/5 | Oct 2021 | 5,499 | amazon.com | |
3. | Canon 1D X Mark III | .. | + + | 5/5 | .. | 4.5/5 | 4/5 | Jan 2020 | 6,499 | amazon.com | |
4. | Nikon D6 | .. | .. | 4/5 | .. | 4.5/5 | 4.5/5 | Feb 2020 | 6,499 | amazon.com | |
5. | Nikon D40 | .. | 81/100 | .. | + + | o | 4.5/5 | Nov 2006 | 499 | ebay.com | |
6. | Nikon D40X | .. | 79/100 | .. | + + | 4/5 | 4/5 | Mar 2007 | 729 | ebay.com | |
7. | Nikon D60 | .. | 80/100 | .. | + + | 4/5 | 4.5/5 | Jan 2008 | 629 | ebay.com | |
8. | Nikon D3000 | .. | + | .. | 72/100 | 4/5 | 4.5/5 | Jul 2009 | 599 | ebay.com | |
9. | Nikon D3200 | 5/5 | + + | .. | 73/100 | 4.5/5 | 4.5/5 | Apr 2012 | 599 | ebay.com | |
10. | Nikon D5000 | .. | + + | .. | 75/100 | 4/5 | 4.5/5 | Apr 2009 | 749 | ebay.com | |
11. | Nikon D5100 | 5/5 | + + | .. | 76/100 | 4.5/5 | 4.5/5 | Apr 2011 | 749 | ebay.com | |
12. | Nikon D7000 | 4/5 | .. | .. | 80/100 | 4.5/5 | 4.5/5 | Sep 2010 | 1,499 | ebay.com | |
13. | Nikon Z7 | 5/5 | + | 4.8/5 | 89/100 | 4.5/5 | 5/5 | Aug 2018 | 3,399 | ebay.com | |
14. | Nikon Z7 II | 4.5/5 | .. | 4.5/5 | .. | 4.5/5 | 4.5/5 | Oct 2020 | 2,999 | amazon.com | |
15. | Nikon Z8 | 5/5 | .. | 5/5 | 94/100 | 5/5 | 4.5/5 | May 2023 | 3,999 | amazon.com | |
16. | Sony NEX-5N | 3/5 | + + | .. | 79/100 | 4.5/5 | 4.5/5 | Aug 2011 | 699 | ebay.com | |
17. | Sony NEX-C3 | 3/5 | + + | .. | 74/100 | 4.5/5 | 4/5 | Jun 2011 | 599 | ebay.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.
Other camera comparisons
Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
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Specifications: Nikon D3100 vs Nikon Z9
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 Model | Nikon D3100 | Nikon Z9 |
---|---|---|
Camera Type | Digital single lens reflex | Mirrorless system camera |
Camera Lens | Nikon F mount lenses | Nikon Z mount lenses |
Launch Date | August 2010 | October 2021 |
Launch Price | USD 599 | USD 5,499 |
Sensor Specs | Nikon D3100 | Nikon Z9 |
Sensor Technology | CMOS | Stacked BSI-CMOS |
Sensor Format | APS-C Sensor | Full Frame Sensor |
Sensor Size | 23.1 x 15.4 mm | 35.9 x 23.9 mm |
Sensor Area | 355.74 mm2 | 858.01 mm2 |
Sensor Diagonal | 27.8 mm | 43.1 mm |
Crop Factor | 1.5x | 1.0x |
Sensor Resolution | 14.2 Megapixels | 45.4 Megapixels |
Image Resolution | 4608 x 3072 pixels | 8256 x 5504 pixels |
Pixel Pitch | 5.01 μm | 4.35 μm |
Pixel Density | 3.98 MP/cm2 | 5.30 MP/cm2 |
Moiré control | Anti-Alias filter | no AA filter |
Movie Capability | 1080/24p Video | 8K/30p Video |
ISO Setting | 100 - 3,200 ISO | 64 - 25,600 ISO |
ISO Boost | 100 - 12,800 ISO | 32 - 102,400 ISO |
Image Processor | EXPEED 2 | EXPEED 7 |
DXO Sensor Quality (score) | 67 | 98 |
DXO Color Depth (bits) | 22.5 | 26.3 |
DXO Dynamic Range (EV) | 11.3 | 14.4 |
DXO Low Light (ISO) | 919 | 2451 |
Screen Specs | Nikon D3100 | Nikon Z9 |
Viewfinder Type | Optical viewfinder | Electronic viewfinder |
Viewfinder Field of View | 95% | 100% |
Viewfinder Magnification | 0.53x | 0.80x |
Viewfinder Resolution | 3690k dots | |
Top-Level Screen | no Top Display | Control Panel |
LCD Framing | Live View | Live View |
Rear LCD Size | 3.0inch | 3.2inch |
LCD Resolution | 230k dots | 2089k dots |
LCD Attachment | Fixed screen | Fully flexible screen |
Touch Input | no Touchscreen | Touchscreen |
Shooting Specs | Nikon D3100 | Nikon Z9 |
Focus System | Phase-detect AF | On-Sensor Phase-detect |
Manual Focusing Aid | no Peaking Feature | Focus Peaking |
Max Shutter Speed (mechanical) | 1/4000s | 1/32000s |
Continuous Shooting | 3 shutter flaps/s | 30 shutter flaps/s |
Electronic Shutter | no E-Shutter | up to 1/32000s |
Time-Lapse Photography | no Intervalometer | Intervalometer built-in |
Image Stabilization | Lens stabilization only | In-body stabilization |
Fill Flash | Built-in Flash | no On-Board Flash |
Storage Medium | SDXC cards | CFexB or XQD cards |
Single or Dual Card Slots | Single card slot | Dual card slots |
Connectivity Specs | Nikon D3100 | Nikon Z9 |
External Flash | Hotshoe | Hotshoe |
Studio Flash | no PC Sync | PC Sync socket |
USB Connector | USB 2.0 | USB 3.2 |
HDMI Port | mini HDMI | full HDMI |
Microphone Port | no MIC socket | External MIC port |
Headphone Socket | no Headphone port | Headphone port |
Wifi Support | no Wifi | Wifi built-in |
Bluetooth Support | no Bluetooth | Bluetooth built-in |
Geotagging | no internal GPS | GPS built-in |
Body Specs | Nikon D3100 | Nikon Z9 |
Environmental Sealing | not weather sealed | Weathersealed body |
Battery Type | Nikon EN-EL14 | Nikon EN-EL18d |
Battery Life (CIPA) | 550 shots per charge | 740 shots per charge |
In-Camera Charging | no USB charging | USB charging |
Body Dimensions |
124 x 96 x 75 mm (4.9 x 3.8 x 3.0 in) |
149 x 150 x 91 mm (5.9 x 5.9 x 3.6 in) |
Camera Weight | 505 g (17.8 oz) | 1340 g (47.3 oz) |
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