Sony A7 III vs A5100
The Sony Alpha A7 III and the Sony Alpha A5100 are two digital cameras that were officially introduced, respectively, in February 2018 and August 2014. Both the A7 III and the A5100 are mirrorless interchangeable lens cameras that are based on a full frame (A7 III) and an APS-C (A5100) sensor. Both cameras offer a resolution of 24 megapixels.
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 Sony Alpha A7 III and the Sony Alpha A5100? 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 physical size and weight of the Sony A7 III and the Sony A5100 are illustrated 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 width, height and depth dimensions are rounded to the nearest millimeter.
The A5100 can be obtained in two different colors (black, white), while the A7 III 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 A5100 is considerably smaller (43 percent) than the Sony A7 III. Moreover, the A5100 is substantially lighter (56 percent) than the A7 III. It is worth mentioning in this context that the A7 III is splash and dust resistant, while the A5100 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. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Sony FE Lens Catalog (A7 III) and the Sony E-Mount Lens Catalog (A5100). Mirrorless cameras, such as the two under consideration, have the additional advantage of having a short flange to focal plane distance, which makes it possible to mount many lenses from other systems onto the camera via adapters.
Concerning battery life, the A7 III gets 610 shots out of its Sony NP-FZ100 battery, while the A5100 can take 400 images on a single charge of its Sony NP-FW50 power pack. The battery packs of both cameras can be charged via USB, 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 want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.
# | Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price (USD) |
Street Price |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Sony A7 III | 127 mm | 96 mm | 74 mm | 650 g | 610 | Y | Feb 2018 | 1,999 | amazon.com | |
2. | Sony A5100 | 110 mm | 63 mm | 36 mm | 283 g | 400 | n | Aug 2014 | 549 | ebay.com | |
3. | Canon 6D Mark II | 144 mm | 111 mm | 75 mm | 765 g | 1200 | Y | Jun 2017 | 1,999 | amazon.com | |
4. | Nikon Z6 | 134 mm | 101 mm | 67 mm | 675 g | 310 | Y | Aug 2018 | 1,999 | ebay.com | |
5. | Sony A7 IV | 131 mm | 96 mm | 80 mm | 659 g | 580 | Y | Oct 2021 | 2,499 | amazon.com | |
6. | Sony A7R IIIA | 127 mm | 96 mm | 74 mm | 650 g | 650 | Y | Apr 2021 | 3,199 | amazon.com | |
7. | Sony A7C | 124 mm | 71 mm | 60 mm | 509 g | 740 | Y | Sep 2020 | 1,799 | amazon.com | |
8. | Sony A9 II | 129 mm | 96 mm | 76 mm | 678 g | 690 | Y | Oct 2019 | 4,499 | amazon.com | |
9. | Sony A7R IV | 129 mm | 96 mm | 78 mm | 665 g | 670 | Y | Jul 2019 | 3,499 | ebay.com | |
10. | Sony A7R III | 127 mm | 96 mm | 74 mm | 650 g | 650 | Y | Oct 2017 | 3,199 | ebay.com | |
11. | Sony A9 | 127 mm | 96 mm | 63 mm | 673 g | 650 | Y | Apr 2017 | 4,499 | ebay.com | |
12. | Sony A7 II | 127 mm | 96 mm | 60 mm | 599 g | 350 | Y | Nov 2014 | 1,999 | ebay.com | |
13. | Sony A5000 | 110 mm | 63 mm | 36 mm | 269 g | 420 | n | Jan 2014 | 449 | ebay.com | |
14. | Sony A6000 | 120 mm | 67 mm | 45 mm | 344 g | 360 | n | Feb 2014 | 599 | ebay.com | |
15. | Sony A3000 | 128 mm | 91 mm | 85 mm | 411 g | 470 | n | Aug 2013 | 329 | ebay.com | |
16. | Sony NEX-3N | 110 mm | 62 mm | 35 mm | 269 g | 480 | n | Feb 2013 | 499 | ebay.com | |
17. | Sony NEX-3 | 117 mm | 62 mm | 33 mm | 297 g | 330 | n | May 2010 | 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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The A5100 was launched at a markedly lower price (by 73 percent) than the A7 III, which puts it into a different market segment. 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
Sensor comparison
The imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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 tend to be more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Sony A7 III features a full frame sensor and the Sony A5100 an APS-C sensor. The sensor area in the A5100 is 57 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Even though the A7 III has a larger sensor, both cameras offer the same resolution of 24 megapixels. This implies that the A7 III has a lower pixel density and larger individual pixels (with a pixel pitch of 5.94μm versus 3.91μm for the A5100), which gives it a potential advantage in terms of light gathering capacity. In addition, the A7 III is much more recent (by 3 years and 6 months) than the A5100, and its sensor will have benefitted from technological advances during this time.
The Sony Alpha A7 III has a native sensitivity range from ISO 100 to ISO 51200, which can be extended to ISO 50-204800. The corresponding ISO settings for the Sony Alpha A5100 are ISO 100 to ISO 25600 (no boost).
In terms of underlying technology, the A7 III is build around a BSI-CMOS sensor, while the A5100 uses a 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 assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. Of the two cameras under review, the A7 III provides substantially higher image quality than the A5100, with an overall score that is 16 points higher. This advantage is based on 1.2 bits higher color depth, 2 EV in additional dynamic range, and 1.5 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. | Sony A7 III | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 25.0 | 14.7 | 3730 | 96 | |
2. | Sony A5100 | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 23.8 | 12.7 | 1347 | 80 | |
3. | Canon 6D Mark II | Full Frame | 26.0 | 6240 | 4160 | 1080/60p | 24.4 | 11.9 | 2862 | 85 | |
4. | Nikon Z6 | Full Frame | 24.3 | 6048 | 4024 | 4K/30p | 25.3 | 14.3 | 3299 | 95 | |
5. | Sony A7 IV | Full Frame | 32.7 | 7008 | 4672 | 4K/60p | 25.4 | 14.7 | 3379 | 97 | |
6. | Sony A7R IIIA | Full Frame | 42.2 | 7952 | 5304 | 4K/30p | 26.0 | 14.7 | 3523 | 100 | |
7. | Sony A7C | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 25.0 | 14.7 | 3407 | 95 | |
8. | Sony A9 II | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 25.0 | 14.0 | 3434 | 93 | |
9. | Sony A7R IV | Full Frame | 60.2 | 9504 | 6336 | 4K/30p | 26.0 | 14.8 | 3344 | 99 | |
10. | Sony A7R III | Full Frame | 42.2 | 7952 | 5304 | 4K/30p | 26.0 | 14.7 | 3523 | 100 | |
11. | Sony A9 | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 24.9 | 13.3 | 3517 | 92 | |
12. | Sony A7 II | Full Frame | 24.0 | 6000 | 4000 | 1080/60p | 24.9 | 13.6 | 2449 | 90 | |
13. | Sony A5000 | APS-C | 19.8 | 5456 | 3632 | 1080/60i | 23.8 | 13.0 | 1089 | 79 | |
14. | Sony A6000 | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 24.1 | 13.1 | 1347 | 82 | |
15. | Sony A3000 | APS-C | 19.8 | 5456 | 3632 | 1080/60i | 23.7 | 12.8 | 1068 | 78 | |
16. | Sony NEX-3N | APS-C | 16.0 | 4912 | 3264 | 1080/60i | 22.8 | 12.5 | 1067 | 74 | |
17. | Sony NEX-3 | APS-C | 14.0 | 4592 | 3056 | 720/30p | 22.1 | 12.0 | 830 | 68 |
Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the A7 III provides a higher video resolution than the A5100. It can shoot video footage at 4K/30p, while the A5100 is limited to 1080/60p.
Feature comparison
Beyond body and sensor, cameras can and do differ across a range of features. For example, the A7 III has an electronic viewfinder (2359k dots), which can be very helpful when shooting in bright sunlight. In contrast, the A5100 relies on live view and the rear LCD for framing. The following table reports on some other key feature differences and similarities of the Sony A7 III, the Sony A5100, and comparable cameras.
# | Camera Model |
Viewfinder (Type or 000 dots) |
Control Panel (yes/no) |
LCD Specifications (inch/000 dots) |
LCD Attach- ment |
Touch Screen (yes/no) |
Max Shutter Speed * |
Max Shutter Flaps * |
Built-in Flash (yes/no) |
Built-in Image Stab |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Sony A7 III | 2359 | n | 3.0 / 922 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
2. | Sony A5100 | none | n | 3.0 / 922 | tilting | Y | 1/4000s | 6.0/s | Y | n | |
3. | Canon 6D Mark II | optical | Y | 3.0 / 1040 | swivel | Y | 1/4000s | 6.5/s | n | n | |
4. | Nikon Z6 | 3690 | Y | 3.2 / 2100 | tilting | Y | 1/8000s | 12.0/s | n | Y | |
5. | Sony A7 IV | 3686 | n | 3.0 / 1037 | swivel | Y | 1/8000s | 10.0/s | n | Y | |
6. | Sony A7R IIIA | 3686 | n | 3.0 / 2340 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
7. | Sony A7C | 2360 | n | 3.0 / 922 | swivel | Y | 1/4000s | 10.0/s | n | Y | |
8. | Sony A9 II | 3686 | n | 3.0 / 1440 | tilting | Y | 1/8000s | 20.0/s | n | Y | |
9. | Sony A7R IV | 5760 | n | 3.0 / 1440 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
10. | Sony A7R III | 3686 | n | 3.0 / 1440 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
11. | Sony A9 | 3686 | n | 3.0 / 1440 | tilting | Y | 1/8000s | 20.0/s | n | Y | |
12. | Sony A7 II | 2400 | n | 3.0 / 1230 | tilting | n | 1/8000s | 5.0/s | n | Y | |
13. | Sony A5000 | none | n | 3.0 / 461 | tilting | n | 1/4000s | 3.5/s | Y | n | |
14. | Sony A6000 | 1440 | n | 3.0 / 922 | tilting | n | 1/4000s | 11.0/s | Y | n | |
15. | Sony A3000 | 202 | n | 3.0 / 230 | fixed | n | 1/4000s | 2.5/s | Y | n | |
16. | Sony NEX-3N | optional | n | 3.0 / 460 | tilting | n | 1/4000s | 4.0/s | Y | n | |
17. | Sony NEX-3 | optional | n | 3.0 / 920 | tilting | n | 1/4000s | 7.0/s | n | n | |
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one. |
One feature that differentiates the A7 III and the A5100 is in-body image stabilization (IBIS). The A7 III reduces the risk of handshake-induced blur with all attached lenses, while the A5100 offers no blur reduction with lenses that themselves do not provide optical image stabilization.
The A5100 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 A7 III 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 A7 III 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 A7 III 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.
Concerning the storage of imaging data, both the A7 III and the A5100 write their files to SDXC or Memory Stick PRO Duo cards. The A7 III features dual card slots, which can be very useful in case a memory card fails. In contrast, the A5100 only has one slot. The A7 III supports UHS-II cards (on its first slot), while the A5100 can use UHS-I 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 Sony Alpha A7 III and Sony Alpha A5100 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. | Sony A7 III | Y | stereo / mono | Y | Y | micro | 3.1 | Y | Y | Y | |
2. | Sony A5100 | - | stereo / mono | - | - | micro | 2.0 | Y | Y | - | |
3. | Canon 6D Mark II | Y | stereo / mono | Y | - | mini | 2.0 | Y | Y | Y | |
4. | Nikon Z6 | Y | stereo / mono | Y | Y | micro | 3.1 | Y | - | Y | |
5. | Sony A7 IV | Y | stereo / mono | Y | Y | full | 3.2 | Y | - | Y | |
6. | Sony A7R IIIA | Y | stereo / mono | Y | Y | micro | 3.2 | Y | Y | Y | |
7. | Sony A7C | Y | stereo / mono | Y | Y | micro | 3.2 | Y | Y | Y | |
8. | Sony A9 II | Y | stereo / mono | Y | Y | micro | 3.1 | Y | Y | Y | |
9. | Sony A7R IV | Y | stereo / mono | Y | Y | micro | 3.1 | Y | Y | Y | |
10. | Sony A7R III | Y | stereo / mono | Y | Y | micro | 3.1 | Y | Y | Y | |
11. | Sony A9 | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | Y | |
12. | Sony A7 II | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - | |
13. | Sony A5000 | - | stereo / mono | - | - | micro | 2.0 | Y | Y | - | |
14. | Sony A6000 | Y | stereo / mono | - | - | micro | 2.0 | Y | Y | - | |
15. | Sony A3000 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
16. | Sony NEX-3N | - | stereo / mono | - | - | micro | 2.0 | - | - | - | |
17. | Sony NEX-3 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - |
It is notable that the A7 III has a hotshoe, while the A5100 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.
The A7 III is a recent model that features in the current product line-up of Sony. In contrast, the A5100 has been discontinued (but can be found pre-owned on ebay). There has not been a direct replacement model for the A5100 from Sony. Further information on the features and operation of the A7 III and A5100 can be found, respectively, in the Sony A7 III Manual (free pdf) or the online Sony A5100 Manual.
Review summary
So what is the bottom line? Is there a clear favorite between the Sony A7 III and the Sony A5100? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.
Reasons to prefer the Sony Alpha A7 III:
- Better image quality: Scores substantially higher (16 points) in the DXO overall assessment.
- Richer colors: Generates images with noticeably better colors (1.2 bits more color depth).
- More dynamic range: Captures a larger spectrum of light and dark details (2 EV of extra DR).
- Better low-light sensitivity: Requires less light for good images (1.5 stops ISO advantage).
- Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
- 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.
- Easier framing: Has an electronic viewfinder for image composition and settings control.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (10 vs 6 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.
- Longer lasting: Can take more shots (610 versus 400) on a single battery charge.
- Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
- Sharper images: Has hand-shake reducing image stabilization built-in.
- Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
- Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
- More modern: Reflects 3 years and 6 months of technical progress since the A5100 launch.
Arguments in favor of the Sony Alpha A5100:
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- More compact: Is smaller (110x63mm vs 127x96mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 367g or 56 percent) and is thus easier to take along.
- Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
- More affordable: Was introduced into a lower priced category (73 percent cheaper at launch).
- More heavily discounted: Has been around for much longer (launched in August 2014).
If the count of relative strengths (bullet points above) is taken as a measure, the A7 III is the clear winner of the match-up (21 : 6 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 wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro 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 Sony A7 III and the Sony A5100 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 the spec-sheets of cameras can offer a general idea of their imaging potential, it says little about, for example, the shooting experience and imaging performance of the A7 III and the A5100 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 where reviews by experts come in. 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. | Sony A7 III | .. | + + | 4.5/5 | 89/100 | 5/5 | 5/5 | Feb 2018 | 1,999 | amazon.com | |
2. | Sony A5100 | 4.5/5 | + | .. | .. | 4.5/5 | 5/5 | Aug 2014 | 549 | ebay.com | |
3. | Canon 6D Mark II | 4/5 | + | 4/5 | 80/100 | 4.5/5 | 4/5 | Jun 2017 | 1,999 | amazon.com | |
4. | Nikon Z6 | 5/5 | .. | 5/5 | 89/100 | 4.5/5 | 5/5 | Aug 2018 | 1,999 | ebay.com | |
5. | Sony A7 IV | 5/5 | + + | 4.5/5 | 89/100 | 4.5/5 | 4.5/5 | Oct 2021 | 2,499 | amazon.com | |
6. | Sony A7R IIIA | .. | + + | 4/5 | 90/100 | 4.5/5 | 5/5 | Apr 2021 | 3,199 | amazon.com | |
7. | Sony A7C | 3.5/5 | .. | 3.5/5 | 86/100 | 4/5 | 4/5 | Sep 2020 | 1,799 | amazon.com | |
8. | Sony A9 II | .. | .. | 5/5 | 90/100 | 5/5 | 5/5 | Oct 2019 | 4,499 | amazon.com | |
9. | Sony A7R IV | 5/5 | + | 4.5/5 | 91/100 | 4.5/5 | 5/5 | Jul 2019 | 3,499 | ebay.com | |
10. | Sony A7R III | .. | + + | 4/5 | 90/100 | 4.5/5 | 5/5 | Oct 2017 | 3,199 | ebay.com | |
11. | Sony A9 | 5/5 | + + | 4.8/5 | 89/100 | 5/5 | 5/5 | Apr 2017 | 4,499 | ebay.com | |
12. | Sony A7 II | 5/5 | + | 4/5 | 82/100 | 4.5/5 | 5/5 | Nov 2014 | 1,999 | ebay.com | |
13. | Sony A5000 | 3/5 | + | .. | .. | 4.5/5 | 4.5/5 | Jan 2014 | 449 | ebay.com | |
14. | Sony A6000 | 5/5 | + | 4.5/5 | 80/100 | 4.5/5 | 5/5 | Feb 2014 | 599 | ebay.com | |
15. | Sony A3000 | 3/5 | + | .. | .. | 4/5 | 4/5 | Aug 2013 | 329 | ebay.com | |
16. | Sony NEX-3N | 3/5 | .. | .. | .. | 4.5/5 | 4.5/5 | Feb 2013 | 499 | ebay.com | |
17. | Sony NEX-3 | .. | .. | .. | 70/100 | 4.5/5 | 4/5 | May 2010 | 599 | ebay.com | |
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. |
The above review scores should be interpreted with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. 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, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.
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 use the search menu below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
- Fujifilm X-A5 vs Sony A5100
- Fujifilm X-A7 vs Sony A7 III
- Fujifilm X-S10 vs Sony A5100
- Fujifilm X-S20 vs Sony A7 III
- Leica D-LUX 5 vs Sony A5100
- Leica S Typ 006 vs Sony A5100
- Nikon D3100 vs Sony A5100
- Nikon Z fc vs Sony A7 III
- Olympus TG-6 vs Sony A7 III
- Panasonic G100 vs Sony A7 III
- Pentax K-S1 vs Sony A7 III
- Sony A5100 vs Sony NEX-6
Specifications: Sony A7 III vs Sony A5100
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 | Sony A7 III | Sony A5100 |
---|---|---|
Camera Type | Mirrorless system camera | Mirrorless system camera |
Camera Lens | Sony E mount lenses | Sony E mount lenses |
Launch Date | February 2018 | August 2014 |
Launch Price | USD 1,999 | USD 549 |
Sensor Specs | Sony A7 III | Sony A5100 |
Sensor Technology | BSI-CMOS | CMOS |
Sensor Format | Full Frame Sensor | APS-C Sensor |
Sensor Size | 35.6 x 23.8 mm | 23.5 x 15.6 mm |
Sensor Area | 847.28 mm2 | 366.6 mm2 |
Sensor Diagonal | 42.8 mm | 28.2 mm |
Crop Factor | 1.0x | 1.5x |
Sensor Resolution | 24 Megapixels | 24 Megapixels |
Image Resolution | 6000 x 4000 pixels | 6000 x 4000 pixels |
Pixel Pitch | 5.94 μm | 3.91 μm |
Pixel Density | 2.83 MP/cm2 | 6.55 MP/cm2 |
Moiré control | Anti-Alias filter | Anti-Alias filter |
Movie Capability | 4K/30p Video | 1080/60p Video |
ISO Setting | 100 - 51,200 ISO | 100 - 25,600 ISO |
ISO Boost | 50 - 204,800 ISO | no Enhancement |
Image Processor | BIONZ X | BIONZ X |
DXO Sensor Quality (score) | 96 | 80 |
DXO Color Depth (bits) | 25.0 | 23.8 |
DXO Dynamic Range (EV) | 14.7 | 12.7 |
DXO Low Light (ISO) | 3730 | 1347 |
Screen Specs | Sony A7 III | Sony A5100 |
Viewfinder Type | Electronic viewfinder | no viewfinder |
Viewfinder Field of View | 100% | |
Viewfinder Magnification | 0.78x | |
Viewfinder Resolution | 2359k dots | |
LCD Framing | Live View | Live View |
Rear LCD Size | 3.0inch | 3.0inch |
LCD Resolution | 922k dots | 922k dots |
LCD Attachment | Tilting screen | Tilting screen |
Touch Input | Touchscreen | Touchscreen |
Shooting Specs | Sony A7 III | Sony A5100 |
Focus System | On-Sensor Phase-detect | On-Sensor Phase-detect |
Manual Focusing Aid | Focus Peaking | Focus Peaking |
Max Shutter Speed (mechanical) | 1/8000s | 1/4000s |
Continuous Shooting | 10 shutter flaps/s | 6 shutter flaps/s |
Electronic Shutter | YES | no E-Shutter |
Time-Lapse Photography | Intervalometer built-in | no Intervalometer |
Image Stabilization | In-body stabilization | Lens stabilization only |
Fill Flash | no On-Board Flash | Built-in Flash |
Storage Medium | MS or SDXC cards | MS or SDXC cards |
Single or Dual Card Slots | Dual card slots | Single card slot |
UHS card support | Single UHS-II | UHS-I |
Connectivity Specs | Sony A7 III | Sony A5100 |
External Flash | Hotshoe | no Hotshoe |
USB Connector | USB 3.1 | USB 2.0 |
HDMI Port | micro HDMI | micro HDMI |
Microphone Port | External MIC port | no MIC socket |
Headphone Socket | Headphone port | no Headphone port |
Wifi Support | Wifi built-in | Wifi built-in |
Near-Field Communication | NFC built-in | NFC built-in |
Bluetooth Support | Bluetooth built-in | no Bluetooth |
Body Specs | Sony A7 III | Sony A5100 |
Environmental Sealing | Weathersealed body | not weather sealed |
Battery Type | Sony NP-FZ100 | Sony NP-FW50 |
Battery Life (CIPA) | 610 shots per charge | 400 shots per charge |
In-Camera Charging | USB charging | USB charging |
Body Dimensions |
127 x 96 x 74 mm (5.0 x 3.8 x 2.9 in) |
110 x 63 x 36 mm (4.3 x 2.5 x 1.4 in) |
Camera Weight | 650 g (22.9 oz) | 283 g (10.0 oz) |
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