Nikon D90 vs Sony A6700
The Nikon D90 and the Sony Alpha A6700 are two enthusiast cameras that were announced, respectively, in August 2008 and July 2023. The D90 is a DSLR, while the A6700 is a mirrorless interchangeable lens camera. Both cameras are equipped with an APS-C sensor. The Nikon has a resolution of 12.2 megapixels, whereas the Sony provides 25.6 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Check D90 offers at
ebay.com

Check A6700 price at
amazon.com
Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D90 and the Sony Alpha A6700? 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 D90 and the Sony A6700 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth dimensions are rounded to the nearest millimeter.



If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A6700 is considerably smaller (38 percent) than the Nikon D90. Moreover, the A6700 is markedly lighter (30 percent) than the D90. It is noteworthy in this context that the A6700 is splash and dust-proof, while the D90 does not feature any corresponding weather-sealing.
The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. Both cameras have similarly sized sensors, but DSLRs have a larger flange-to-focal plane distance than mirrorless cameras, which imposes contraints on the optical engineering process and generally leads to bigger and heavier lenses. You can compare the optics available for the two cameras in the Nikon Lens Catalog (D90) and the Sony E-Mount Lens Catalog (A6700). Mirrorless cameras, such as the A6700, have moreover the advantage that they can use many lenses from other systems via adapters, as they have a relatively short flange to focal plane distance.
Concerning battery life, the D90 gets 850 shots out of its Nikon EN-EL3e battery, while the A6700 can take 570 images on a single charge of its Sony NP-FZ100 power pack. The power pack in the A6700 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. 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.

| Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price |
Street Price |
||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Nikon D90 | 132 mm | 103 mm | 77 mm | 703 g | 850 | n | Aug 2008 | US$ 1 299 | ebay.com | |
| 2. | Sony A6700 | 122 mm | 69 mm | 64 mm | 493 g | 570 | Y | Jul 2023 | US$ 1 399 | amazon.com | |
| 3. | Canon 40D | 146 mm | 108 mm | 74 mm | 822 g | 750 | n | Aug 2007 | US$ 1 299 | ebay.com | |
| 4. | Nikon D40X | 124 mm | 94 mm | 64 mm | 522 g | 520 | n | Mar 2007 | US$ 729 | ebay.com | |
| 5. | Nikon D60 | 126 mm | 94 mm | 64 mm | 522 g | 500 | n | Jan 2008 | US$ 629 | ebay.com | |
| 6. | Nikon D80 | 132 mm | 103 mm | 77 mm | 668 g | 600 | n | Aug 2006 | US$ 999 | ebay.com | |
| 7. | Nikon D300 | 147 mm | 114 mm | 74 mm | 925 g | 1000 | Y | Aug 2007 | US$ 1 799 | ebay.com | |
| 8. | Nikon D300S | 147 mm | 115 mm | 81 mm | 938 g | 950 | Y | Jul 2009 | US$ 1 799 | ebay.com | |
| 9. | Nikon D3000 | 126 mm | 97 mm | 64 mm | 536 g | 500 | n | Jul 2009 | US$ 599 | ebay.com | |
| 10. | Nikon D3100 | 124 mm | 96 mm | 75 mm | 505 g | 550 | n | Aug 2010 | US$ 599 | ebay.com | |
| 11. | Nikon D5000 | 127 mm | 104 mm | 80 mm | 590 g | 510 | n | Apr 2009 | US$ 749 | ebay.com | |
| 12. | Nikon D7000 | 132 mm | 105 mm | 77 mm | 780 g | 1050 | Y | Sep 2010 | US$ 1 499 | ebay.com | |
| 13. | Sony A77 | 143 mm | 104 mm | 81 mm | 732 g | 470 | Y | Aug 2011 | US$ 1 399 | ebay.com | |
| 14. | Sony A77 II | 143 mm | 104 mm | 81 mm | 647 g | 480 | Y | May 2014 | US$ 1 199 | ebay.com | |
| 15. | Sony A6300 | 120 mm | 67 mm | 49 mm | 404 g | 400 | Y | Feb 2016 | US$ 999 | ebay.com | |
| 16. | Sony A6500 | 120 mm | 67 mm | 53 mm | 453 g | 350 | Y | Oct 2016 | US$ 1 399 | ebay.com | |
| 17. | Sony A6600 | 120 mm | 67 mm | 69 mm | 503 g | 810 | Y | Aug 2019 | US$ 1 399 | amazon.com | |
| Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders. | |||||||||||
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 D90 was somewhat cheaper (by 7 percent) than the A6700 at launch, but both cameras fall into the same price category. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down.
Sensor comparison
The size of the imaging sensor is a crucial determinant of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units in a sensor of the same technological generation. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better 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.
Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the A6700 is 2 percent smaller. They nevertheless have the same format factor of 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Despite having a slightly smaller sensor, the A6700 offers a higher resolution of 25.6 megapixels, compared with 12.2 MP of the D90. 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 3.79μm versus 5.53μm for the D90). However, it should be noted that the A6700 is much more recent (by 14 years and 10 months) than the D90, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.
The resolution advantage of the Sony A6700 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A6700 for good quality output (200 dots per inch) amounts to 31 x 20.6 inches or 78.6 x 52.4 cm, for very good quality (250 dpi) 24.8 x 16.5 inches or 62.9 x 41.9 cm, and for excellent quality (300 dpi) 20.6 x 13.8 inches or 52.4 x 35 cm. The corresponding values for the Nikon D90 are 21.4 x 14.2 inches or 54.5 x 36.2 cm for good quality, 17.2 x 11.4 inches or 43.6 x 28.9 cm for very good quality, and 14.3 x 9.5 inches or 36.3 x 24.1 cm for excellent quality prints.
The A6700 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Nikon D90 has a native sensitivity range from ISO 200 to ISO 3200, which can be extended to ISO 200-6400. The corresponding ISO settings for the Sony Alpha A6700 are ISO 100 to ISO 32000, with the possibility to increase the ISO range to 50-102400.
In terms of underlying technology, the D90 is build around a CMOS sensor, while the A6700 uses a 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.

For many cameras, data on sensor performance has been reported by DXO Mark. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

| Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Nikon D90 | APS-C | 12.2 | 4288 | 2848 | 720/24p | 22.7 | 12.5 | 977 | 73 | |
| 2. | Sony A6700 | APS-C | 25.6 | 6192 | 4128 | 4K/120p | 24.3 | 14.0 | 2329 | 86 | |
| 3. | Canon 40D | APS-C | 10.1 | 3888 | 2592 | none | 22.1 | 11.3 | 703 | 64 | |
| 4. | Nikon D40X | APS-C | 10.0 | 3872 | 2592 | none | 22.4 | 11.4 | 516 | 63 | |
| 5. | Nikon D60 | APS-C | 10.0 | 3872 | 2592 | none | 22.5 | 11.4 | 562 | 65 | |
| 6. | Nikon D80 | APS-C | 10.0 | 3872 | 2592 | none | 22.1 | 11.2 | 524 | 61 | |
| 7. | Nikon D300 | APS-C | 12.2 | 4288 | 2848 | none | 22.1 | 12.0 | 679 | 67 | |
| 8. | Nikon D300S | APS-C | 12.2 | 4288 | 2848 | 720/24p | 22.5 | 12.2 | 787 | 70 | |
| 9. | Nikon D3000 | APS-C | 10.0 | 3872 | 2592 | none | 22.3 | 11.1 | 563 | 62 | |
| 10. | Nikon D3100 | APS-C | 14.2 | 4608 | 3072 | 1080/24p | 22.5 | 11.3 | 919 | 67 | |
| 11. | Nikon D5000 | APS-C | 12.2 | 4288 | 2848 | 720/24p | 22.7 | 12.5 | 868 | 72 | |
| 12. | Nikon D7000 | APS-C | 16.1 | 4928 | 3264 | 1080/24p | 23.5 | 13.9 | 1167 | 80 | |
| 13. | Sony A77 | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 24.0 | 13.2 | 801 | 78 | |
| 14. | Sony A77 II | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 24.4 | 13.4 | 1013 | 82 | |
| 15. | Sony A6300 | APS-C | 24.0 | 6000 | 4000 | 4K/30p | 24.4 | 13.7 | 1437 | 85 | |
| 16. | Sony A6500 | APS-C | 24.0 | 6000 | 4000 | 4K/30p | 24.5 | 13.7 | 1405 | 85 | |
| 17. | Sony A6600 | APS-C | 24.0 | 6000 | 4000 | 4K/30p | 23.8 | 13.4 | 1497 | 82 | |
| 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 A6700 provides a better video resolution than the D90. It can shoot movie footage at 4K/120p, while the Nikon is limited to 720/24p.
Feature comparison
Beyond body and sensor, cameras can and do differ across a range of features. For example, the A6700 has an electronic viewfinder (2360k dots), while the D90 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 A6700 offers a wider field of view (100%) than the one in the D90 (96%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the A6700 has a higher magnification (0.71x vs 0.63x), 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 D90 and Sony A6700 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 D90 | optical | Y | 3.0 / 920 | fixed | n | 1/4000s | 4.5/s | Y | n | |
| 2. | Sony A6700 | 2360 | n | 3.0 / 1037 | swivel | Y | 1/4000s | 11.0/s | n | Y | |
| 3. | Canon 40D | optical | Y | 3.0 / 230 | fixed | n | 1/8000s | 6.5/s | Y | n | |
| 4. | Nikon D40X | optical | n | 2.5 / 230 | fixed | n | 1/4000s | 3.0/s | Y | n | |
| 5. | Nikon D60 | optical | n | 2.5 / 230 | fixed | n | 1/4000s | 3.0/s | Y | n | |
| 6. | Nikon D80 | optical | n | 2.5 / 230 | fixed | n | 1/4000s | 3.0/s | Y | n | |
| 7. | Nikon D300 | optical | Y | 3.0 / 922 | fixed | n | 1/8000s | 6.0/s | Y | n | |
| 8. | Nikon D300S | optical | Y | 3.0 / 920 | fixed | n | 1/8000s | 7.0/s | Y | n | |
| 9. | Nikon D3000 | optical | n | 3.0 / 230 | fixed | n | 1/4000s | 3.0/s | Y | n | |
| 10. | Nikon D3100 | optical | n | 3.0 / 230 | fixed | n | 1/4000s | 3.0/s | Y | n | |
| 11. | Nikon D5000 | optical | n | 2.7 / 230 | full-flex | 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. | Sony A77 | 2359 | Y | 3.0 / 921 | full-flex | n | 1/8000s | 12.0/s | Y | Y | |
| 14. | Sony A77 II | 2359 | Y | 3.0 / 1229 | full-flex | n | 1/8000s | 12.0/s | Y | Y | |
| 15. | Sony A6300 | 2359 | n | 3.0 / 922 | tilting | n | 1/4000s | 11.0/s | Y | n | |
| 16. | Sony A6500 | 2359 | n | 3.0 / 922 | tilting | Y | 1/4000s | 11.0/s | Y | Y | |
| 17. | Sony A6600 | 2359 | n | 3.0 / 922 | tilting | Y | 1/4000s | 11.0/s | n | 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 D90 has one, while the A6700 does not. While the built-in flash of the D90 is not very powerful, it can at times be useful as a fill-in light.
The A6700 has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the D90 does not have a selfie-screen.The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the A6700 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 Sony A6700 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 D90 writes its imaging data to SDHC cards, while the A6700 uses SDXC or Memory Stick PRO Duo cards. The A6700 supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the D90 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 Nikon D90 and Sony Alpha A6700 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 D90 | Y | mono / mono | - | - | mini | 2.0 | - | - | - | |
| 2. | Sony A6700 | Y | stereo / mono | Y | Y | YES | 3.2 | Y | Y | Y | |
| 3. | Canon 40D | Y | - / - | - | - | - | 2.0 | - | - | - | |
| 4. | Nikon D40X | Y | - / - | - | - | - | 2.0 | - | - | - | |
| 5. | Nikon D60 | Y | - / - | - | - | - | 2.0 | - | - | - | |
| 6. | Nikon D80 | Y | - / - | - | - | - | 2.0 | - | - | - | |
| 7. | Nikon D300 | Y | - / - | - | - | mini | 2.0 | - | - | - | |
| 8. | Nikon D300S | Y | stereo / mono | Y | - | mini | 2.0 | - | - | - | |
| 9. | Nikon D3000 | Y | - / - | - | - | - | 2.0 | - | - | - | |
| 10. | Nikon D3100 | Y | mono / mono | - | - | mini | 2.0 | - | - | - | |
| 11. | Nikon D5000 | Y | mono / mono | - | - | mini | 2.0 | - | - | - | |
| 12. | Nikon D7000 | Y | mono / mono | Y | - | mini | 2.0 | - | - | - | |
| 13. | Sony A77 | Y | stereo / mono | Y | - | mini | 2.0 | - | - | - | |
| 14. | Sony A77 II | Y | stereo / mono | Y | - | mini | 2.0 | Y | Y | - | |
| 15. | Sony A6300 | Y | stereo / mono | Y | - | micro | 2.0 | Y | Y | - | |
| 16. | Sony A6500 | Y | stereo / mono | Y | - | micro | 2.0 | Y | Y | - | |
| 17. | Sony A6600 | Y | stereo / mono | Y | Y | YES | 2.0 | Y | Y | Y |
It is notable that the A6700 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the D90 does not provide wifi capability.
The A6700 is a recent model that features in the current product line-up of Sony. In contrast, the D90 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the D90 was succeeded by the Nikon D7000. Further information on the features and operation of the D90 and A6700 can be found, respectively, in the Nikon D90 Manual (free pdf) or the online Sony A6700 Manual.
Review summary
So how do things add up? Is there a clear favorite between the Nikon D90 and the Sony A6700? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.

Advantages of the Nikon D90:
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- Longer lasting: Can take more shots (850 versus 570) on a single battery charge.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More heavily discounted: Has been available for much longer (launched in August 2008).

Arguments in favor of the Sony Alpha A6700:
- More detail: Has more megapixels (25.6 vs 12.2MP), which boosts linear resolution by 45%.
- Better video: Provides higher definition movie capture (4K/120p vs 720/24p).
- 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 96%).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.71x vs 0.63x).
- More detailed LCD: Has a higher resolution rear screen (1037k vs 920k dots).
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Faster burst: Shoots at higher frequency (11 vs 4.5 flaps/sec) to capture the decisive moment.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- More compact: Is smaller (122x69mm vs 132x103mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 210g or 30 percent) and is thus easier to take along.
- 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.
- 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 device pairing: Supports NFC for fast wireless image transfer over short distances.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- Faster buffer clearing: Has an SD card interface that supports the UHS-II standard.
- More modern: Reflects 14 years and 10 months of technical progress since the D90 launch.
If the number of relative strengths (bullet points above) is taken as a guide, the A6700 is the clear winner of the contest (27 : 5 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.
How about other alternatives? Do the specifications of the Nikon D90 and the Sony A6700 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 specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the D90 and the A6700 in practical situations. 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 following table reports the overall ratings of the cameras as published by some of the major 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 |
Street Price |
||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Nikon D90 | .. | + + | .. | + + | 4/5 | 4.5/5 | Aug 2008 | US$ 1 299 | ebay.com | |
| 2. | Sony A6700 | 4.5/5 | + | 4.5/5 | 88/100 | 4.5/5 | 4.5/5 | Jul 2023 | US$ 1 399 | amazon.com | |
| 3. | Canon 40D | .. | + + | .. | + + | 4.5/5 | 4.5/5 | Aug 2007 | US$ 1 299 | ebay.com | |
| 4. | Nikon D40X | .. | 79/100 | .. | + + | 4/5 | 4/5 | Mar 2007 | US$ 729 | ebay.com | |
| 5. | Nikon D60 | .. | 80/100 | .. | + + | 4/5 | 4.5/5 | Jan 2008 | US$ 629 | ebay.com | |
| 6. | Nikon D80 | .. | + | .. | + + | o | 4.5/5 | Aug 2006 | US$ 999 | ebay.com | |
| 7. | Nikon D300 | .. | + + | .. | + + | 5/5 | 4.5/5 | Aug 2007 | US$ 1 799 | ebay.com | |
| 8. | Nikon D300S | 5/5 | + + | .. | 82/100 | 4/5 | 4.5/5 | Jul 2009 | US$ 1 799 | ebay.com | |
| 9. | Nikon D3000 | .. | + | .. | 72/100 | 4/5 | 4.5/5 | Jul 2009 | US$ 599 | ebay.com | |
| 10. | Nikon D3100 | 5/5 | + + | .. | 72/100 | 4.5/5 | 4.5/5 | Aug 2010 | US$ 599 | ebay.com | |
| 11. | Nikon D5000 | .. | + + | .. | 75/100 | 4/5 | 4.5/5 | Apr 2009 | US$ 749 | ebay.com | |
| 12. | Nikon D7000 | 4/5 | .. | .. | 80/100 | 4.5/5 | 4.5/5 | Sep 2010 | US$ 1 499 | ebay.com | |
| 13. | Sony A77 | 5/5 | 91/100 | .. | 81/100 | .. | 5/5 | Aug 2011 | US$ 1 399 | ebay.com | |
| 14. | Sony A77 II | 4/5 | .. | .. | 80/100 | 4.5/5 | 5/5 | May 2014 | US$ 1 199 | ebay.com | |
| 15. | Sony A6300 | 4.5/5 | + | .. | 85/100 | 5/5 | 5/5 | Feb 2016 | US$ 999 | ebay.com | |
| 16. | Sony A6500 | 5/5 | + + | 3.5/5 | 85/100 | 4.5/5 | 4.5/5 | Oct 2016 | US$ 1 399 | ebay.com | |
| 17. | Sony A6600 | 4/5 | + | 4/5 | 83/100 | 4.5/5 | 4/5 | Aug 2019 | US$ 1 399 | amazon.com | |
| Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. | |||||||||||
The review scores listed above should be treated with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Check D90 offers at
ebay.com

Check A6700 price at
amazon.com
Other camera comparisons
Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
- Canon G9 X Mark II vs Nikon D90
- Canon R5 Mark II vs Nikon D90
- Fujifilm GFX 50S II vs Nikon D90
- Fujifilm XF10 vs Sony A6700
- Nikon D3400 vs Sony A6700
- Nikon D40X vs Nikon D90
- Nikon D500 vs Sony A6700
- Nikon D7500 vs Sony A6700
- Nikon D90 vs Panasonic TZ95
- Nikon D90 vs Pentax K-500
- Olympus E-PL7 vs Sony A6700
- Panasonic FZ80D vs Sony A6700
Specifications: Nikon D90 vs Sony A6700
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 D90 | Sony A6700 |
|---|---|---|
| Camera Type | Digital single lens reflex | Mirrorless system camera |
| Camera Lens | Nikon F mount lenses | Sony E mount lenses |
| Launch Date | August 2008 | July 2023 |
| Launch Price | USD 1,299 | USD 1,399 |
| Sensor Specs | Nikon D90 | Sony A6700 |
| Sensor Technology | CMOS | BSI-CMOS |
| Sensor Format | APS-C Sensor | APS-C Sensor |
| Sensor Size | 23.6 x 15.8 mm | 23.5 x 15.6 mm |
| Sensor Area | 372.88 mm2 | 366.6 mm2 |
| Sensor Diagonal | 28.4 mm | 28.2 mm |
| Crop Factor | 1.5x | 1.5x |
| Sensor Resolution | 12.2 Megapixels | 25.6 Megapixels |
| Image Resolution | 4288 x 2848 pixels | 6192 x 4128 pixels |
| Pixel Pitch | 5.53 μm | 3.79 μm |
| Pixel Density | 3.28 MP/cm2 | 6.97 MP/cm2 |
| Moiré control | Anti-Alias filter | Anti-Alias filter |
| Movie Capability | 720/24p Video | 4K/120p Video |
| ISO Setting | 200 - 3,200 ISO | 100 - 32,000 ISO |
| ISO Boost | 200 - 6,400 ISO | 50 - 102,400 ISO |
| Image Processor | EXPEED | BIONZ XR |
| DXO Sensor Quality (score) | 73 | .. |
| DXO Color Depth (bits) | 22.7 | .. |
| DXO Dynamic Range (EV) | 12.5 | .. |
| DXO Low Light (ISO) | 977 | .. |
| Screen Specs | Nikon D90 | Sony A6700 |
| Viewfinder Type | Optical viewfinder | Electronic viewfinder |
| Viewfinder Field of View | 96% | 100% |
| Viewfinder Magnification | 0.63x | 0.71x |
| Viewfinder Resolution | 2360k dots | |
| Top-Level Screen | Control Panel | no Top Display |
| LCD Framing | Live View | Live View |
| Rear LCD Size | 3.0inch | 3.0inch |
| LCD Resolution | 920k dots | 1037k dots |
| LCD Attachment | Fixed screen | Swivel screen |
| Touch Input | no Touchscreen | Touchscreen |
| Shooting Specs | Nikon D90 | Sony A6700 |
| Focus System | Phase-detect AF | On-Sensor Phase-detect |
| Manual Focusing Aid | no Peaking Feature | Focus Peaking |
| Max Shutter Speed (mechanical) | 1/4000s | 1/4000s |
| Continuous Shooting | 4.5 shutter flaps/s | 11 shutter flaps/s |
| Shutter Life Expectancy | 100 000 actuations | 100 000 actuations |
| Electronic Shutter | no E-Shutter | up to 1/8000s |
| 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 | SDHC cards | MS or SDXC cards |
| Single or Dual Card Slots | Single card slot | Single card slot |
| UHS card support | no | UHS-II |
| Connectivity Specs | Nikon D90 | Sony A6700 |
| External Flash | Hotshoe | Hotshoe |
| USB Connector | USB 2.0 | USB 3.2 |
| HDMI Port | mini HDMI | YES HDMI |
| Microphone Port | no MIC socket | External MIC port |
| Headphone Socket | no Headphone port | Headphone port |
| Wifi Support | no Wifi | Wifi built-in |
| Near-Field Communication | no NFC | NFC built-in |
| Bluetooth Support | no Bluetooth | Bluetooth built-in |
| Body Specs | Nikon D90 | Sony A6700 |
| Environmental Sealing | not weather sealed | Weathersealed body |
| Battery Type | Nikon EN-EL3e | Sony NP-FZ100 |
| Battery Life (CIPA) | 850 shots per charge | 570 shots per charge |
| In-Camera Charging | no USB charging | USB charging |
| Body Dimensions |
132 x 103 x 77 mm (5.2 x 4.1 x 3.0 in) |
122 x 69 x 64 mm (4.8 x 2.7 x 2.5 in) |
| Camera Weight | 703 g (24.8 oz) | 493 g (17.4 oz) |

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