Sony RX1R II vs A5100
The Sony Cyber-shot DSC-RX1R II and the Sony Alpha A5100 are two digital cameras that were officially introduced, respectively, in October 2015 and August 2014. The RX1R II is a fixed lens compact, while the A5100 is a mirrorless interchangeable lens camera. The cameras are based on a full frame (RX1R II) and an APS-C (A5100) sensor. The RX1R II has a resolution of 42.2 megapixels, whereas the A5100 provides 24 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 Sony Cyber-shot DSC-RX1R II 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
An illustration of the physical size and weight of the Sony RX1R II and the Sony A5100 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 measures are rounded to the nearest millimeter.
The A5100 can be obtained in two different colors (black, white), while the RX1R II 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 notably smaller (6 percent) than the Sony RX1R II. In this context, it is worth noting that neither the RX1R II nor the A5100 are weather-sealed.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the RX1R II has a lens built in, whereas the A5100 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the A5100 and their specifications in the Sony E-Mount Lens Catalog.
Concerning battery life, the RX1R II gets 220 shots out of its Sony NP-BX1 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 following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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 (USD) |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Sony RX1R II | 113 mm | 65 mm | 72 mm | 507 g | 220 | n | Oct 2015 | 3,299 | ebay.com | |
2. | Sony A5100 | 110 mm | 63 mm | 36 mm | 283 g | 400 | n | Aug 2014 | 549 | ebay.com | |
3. | Canon 5DS | 152 mm | 116 mm | 76 mm | 930 g | 700 | Y | Feb 2015 | 3,699 | ebay.com | |
4. | Canon 5DS R | 152 mm | 116 mm | 76 mm | 930 g | 700 | Y | Feb 2015 | 3,699 | ebay.com | |
5. | Leica Q Typ 116 | 130 mm | 80 mm | 93 mm | 640 g | 300 | n | Jun 2015 | 4,249 | ebay.com | |
6. | Nikon D810 | 146 mm | 123 mm | 82 mm | 980 g | 1200 | Y | Jun 2014 | 3,299 | ebay.com | |
7. | Sony A7R | 127 mm | 94 mm | 48 mm | 465 g | 340 | Y | Oct 2013 | 2,299 | ebay.com | |
8. | Sony A7R II | 127 mm | 96 mm | 60 mm | 625 g | 290 | Y | Jun 2015 | 3,199 | ebay.com | |
9. | Sony A7S | 127 mm | 94 mm | 48 mm | 489 g | 380 | Y | Apr 2014 | 2,499 | ebay.com | |
10. | Sony A99 II | 143 mm | 104 mm | 76 mm | 849 g | 490 | Y | Sep 2016 | 3,199 | ebay.com | |
11. | Sony A3000 | 128 mm | 91 mm | 85 mm | 411 g | 470 | n | Aug 2013 | 329 | ebay.com | |
12. | Sony A5000 | 110 mm | 63 mm | 36 mm | 269 g | 420 | n | Jan 2014 | 449 | ebay.com | |
13. | Sony A6000 | 120 mm | 67 mm | 45 mm | 344 g | 360 | n | Feb 2014 | 599 | ebay.com | |
14. | Sony NEX-3 | 117 mm | 62 mm | 33 mm | 297 g | 330 | n | May 2010 | 599 | ebay.com | |
15. | Sony NEX-3N | 110 mm | 62 mm | 35 mm | 269 g | 480 | n | Feb 2013 | 499 | ebay.com | |
16. | Sony RX1 | 113 mm | 65 mm | 70 mm | 482 g | 270 | n | Sep 2012 | 2,799 | ebay.com | |
17. | Sony RX1R | 113 mm | 65 mm | 70 mm | 482 g | 270 | n | Jun 2013 | 2,799 | ebay.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 retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. 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 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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Sony RX1R II 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.
With 42.2MP, the RX1R II offers a higher resolution than the A5100 (24MP), but the RX1R II nevertheless has larger individual pixels (pixel pitch of 4.50μm versus 3.91μm for the A5100) due to its larger sensor. Moreover, the RX1R II is a somewhat more recent model (by 1 year and 1 month) than the A5100, and its sensor might 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 the RX1R II has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Sony RX1R II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the RX1R II for good quality output (200 dots per inch) amounts to 39.8 x 26.5 inches or 101 x 67.4 cm, for very good quality (250 dpi) 31.8 x 21.2 inches or 80.8 x 53.9 cm, and for excellent quality (300 dpi) 26.5 x 17.7 inches or 67.3 x 44.9 cm. The corresponding values for the Sony A5100 are 30 x 20 inches or 76.2 x 50.8 cm for good quality, 24 x 16 inches or 61 x 40.6 cm for very good quality, and 20 x 13.3 inches or 50.8 x 33.9 cm for excellent quality prints.
The A5100 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Sony Cyber-shot DSC-RX1R II has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 50-102400. The corresponding ISO settings for the Sony Alpha A5100 are ISO 100 to ISO 25600 (no boost).
In terms of underlying technology, the RX1R II 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 RX1R II provides substantially higher image quality than the A5100, with an overall score that is 17 points higher. This advantage is based on 2 bits higher color depth, 1.2 EV in additional dynamic range, and 1.3 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 RX1R II | Full Frame | 42.2 | 7952 | 5304 | 1080/60p | 25.8 | 13.9 | 3204 | 97 | |
2. | Sony A5100 | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 23.8 | 12.7 | 1347 | 80 | |
3. | Canon 5DS | Full Frame | 50.3 | 8688 | 5792 | 1080/30p | 24.7 | 12.4 | 2381 | 87 | |
4. | Canon 5DS R | Full Frame | 50.3 | 8688 | 5792 | 1080/30p | 24.6 | 12.4 | 2308 | 86 | |
5. | Leica Q Typ 116 | Full Frame | 24.0 | 6000 | 4000 | 1080/60p | 24.3 | 12.7 | 2221 | 85 | |
6. | Nikon D810 | Full Frame | 36.2 | 7360 | 4912 | 1080/60p | 25.7 | 14.8 | 2853 | 97 | |
7. | Sony A7R | Full Frame | 36.2 | 7360 | 4912 | 1080/60p | 25.6 | 14.1 | 2746 | 95 | |
8. | Sony A7R II | Full Frame | 42.2 | 7952 | 5304 | 4K/30p | 26.0 | 13.9 | 3434 | 98 | |
9. | Sony A7S | Full Frame | 12.0 | 4240 | 2832 | 1080/60p | 23.9 | 13.2 | 3702 | 87 | |
10. | Sony A99 II | Full Frame | 42.2 | 7952 | 5304 | 4K/30p | 25.4 | 13.4 | 2317 | 92 | |
11. | Sony A3000 | APS-C | 19.8 | 5456 | 3632 | 1080/60i | 23.7 | 12.8 | 1068 | 78 | |
12. | Sony A5000 | APS-C | 19.8 | 5456 | 3632 | 1080/60i | 23.8 | 13.0 | 1089 | 79 | |
13. | Sony A6000 | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 24.1 | 13.1 | 1347 | 82 | |
14. | Sony NEX-3 | APS-C | 14.0 | 4592 | 3056 | 720/30p | 22.1 | 12.0 | 830 | 68 | |
15. | Sony NEX-3N | APS-C | 16.0 | 4912 | 3264 | 1080/60i | 22.8 | 12.5 | 1067 | 74 | |
16. | Sony RX1 | Full Frame | 24.0 | 6000 | 4000 | 1080/60p | 25.1 | 14.3 | 2534 | 93 | |
17. | Sony RX1R | Full Frame | 24.0 | 6000 | 4000 | 1080/60p | 25.0 | 13.6 | 2537 | 91 |
Many modern cameras cannot only take still pictures, but also record videos. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, and both provide the same movie specifications (1080/60p).
Feature comparison
Beyond body and sensor, cameras can and do differ across a range of features. For example, the RX1R II has an electronic viewfinder (2360k 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 RX1R II, 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 RX1R II | 2360 | n | 3.0 / 1229 | tilting | n | 1/4000s | 5.0/s | n | n | |
2. | Sony A5100 | none | n | 3.0 / 922 | tilting | Y | 1/4000s | 6.0/s | Y | n | |
3. | Canon 5DS | optical | Y | 3.2 / 1040 | fixed | n | 1/8000s | 5.0/s | n | n | |
4. | Canon 5DS R | optical | Y | 3.2 / 1040 | fixed | n | 1/8000s | 5.0/s | n | n | |
5. | Leica Q Typ 116 | 3680 | n | 3.0 / 1040 | fixed | Y | 1/2000s | 10.0/s | n | Y | |
6. | Nikon D810 | optical | Y | 3.2 / 1229 | fixed | n | 1/8000s | 5.0/s | Y | n | |
7. | Sony A7R | 2400 | n | 3.0 / 1230 | tilting | n | 1/8000s | 4.0/s | n | n | |
8. | Sony A7R II | 2400 | n | 3.0 / 1229 | tilting | n | 1/8000s | 5.0/s | n | Y | |
9. | Sony A7S | 2400 | n | 3.0 / 921 | tilting | n | 1/8000s | 5.0/s | n | n | |
10. | Sony A99 II | 2400 | Y | 3.0 / 1229 | full-flex | n | 1/8000s | 12.0/s | n | Y | |
11. | Sony A3000 | 202 | n | 3.0 / 230 | fixed | n | 1/4000s | 2.5/s | Y | n | |
12. | Sony A5000 | none | n | 3.0 / 461 | tilting | n | 1/4000s | 3.5/s | Y | n | |
13. | Sony A6000 | 1440 | n | 3.0 / 922 | tilting | n | 1/4000s | 11.0/s | Y | n | |
14. | Sony NEX-3 | optional | n | 3.0 / 920 | tilting | n | 1/4000s | 7.0/s | n | n | |
15. | Sony NEX-3N | optional | n | 3.0 / 460 | tilting | n | 1/4000s | 4.0/s | Y | n | |
16. | Sony RX1 | optional | n | 3.0 / 1229 | fixed | n | 1/4000s | 5.0/s | Y | n | |
17. | Sony RX1R | optional | n | 3.0 / 1229 | fixed | n | 1/4000s | 5.0/s | Y | n | |
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one. |
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The A5100 has a touchscreen, while the RX1R II has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.
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 RX1R II does not have a selfie-screen.Concerning the storage of imaging data, both the RX1R II and the A5100 write their files to SDXC or Memory Stick PRO Duo 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 Sony Cyber-shot DSC-RX1R II 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 RX1R II | Y | stereo / mono | Y | - | micro | 2.0 | Y | Y | - | |
2. | Sony A5100 | - | stereo / mono | - | - | micro | 2.0 | Y | Y | - | |
3. | Canon 5DS | Y | mono / mono | Y | - | mini | 3.0 | - | - | - | |
4. | Canon 5DS R | Y | mono / mono | Y | - | mini | 3.0 | - | - | - | |
5. | Leica Q Typ 116 | Y | stereo / mono | - | - | micro | 2.0 | Y | Y | - | |
6. | Nikon D810 | Y | stereo / mono | Y | Y | mini | 3.0 | Y | - | - | |
7. | Sony A7R | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - | |
8. | Sony A7R II | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - | |
9. | Sony A7S | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - | |
10. | Sony A99 II | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | Y | |
11. | Sony A3000 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
12. | Sony A5000 | - | stereo / mono | - | - | micro | 2.0 | Y | Y | - | |
13. | Sony A6000 | Y | stereo / mono | - | - | micro | 2.0 | Y | Y | - | |
14. | Sony NEX-3 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
15. | Sony NEX-3N | - | stereo / mono | - | - | micro | 2.0 | - | - | - | |
16. | Sony RX1 | Y | stereo / mono | Y | - | mini | 2.0 | - | - | - | |
17. | Sony RX1R | Y | stereo / mono | Y | - | mini | 2.0 | - | - | - |
It is notable that the RX1R II has a hotshoe, while the A5100 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.
Both the RX1R II and the A5100 have been discontinued, but can regularly be found used on ebay. Neither of the two has a direct successor, so they represent the end of the respective camera lines from Sony. Further information on the features and operation of the RX1R II and A5100 can be found, respectively, in the Sony RX1R II Manual (free pdf) or the online Sony A5100 Manual.
Review summary
So what conclusions can be drawn? Which of the two cameras – the Sony RX1R II or the Sony A5100 – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.
Arguments in favor of the Sony Cyber-shot DSC-RX1R II:
- More detail: Offers more megapixels (42.2 vs 24MP) with a 33% higher linear resolution.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better image quality: Scores substantially higher (17 points) in the DXO overall assessment.
- Richer colors: Generates images with noticeably better colors (2 bits more color depth).
- More dynamic range: Captures a larger spectrum of light and dark details (1.2 EV of extra DR).
- Better low-light sensitivity: Requires less light for good images (1.3 stops ISO advantage).
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Easier framing: Has an electronic viewfinder for image composition and settings control.
- More detailed LCD: Has a higher resolution rear screen (1229k vs 922k dots).
- Ready to shoot: Has a lens built-in, whereas the A5100 requires a separate lens.
- Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
- More modern: Is somewhat more recent (announced 1 year and 1 month after the A5100).
Reasons to prefer the Sony Alpha A5100:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- 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 (6 vs 5 flaps/sec) to capture the decisive moment.
- More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
- Longer lasting: Gets more shots (400 versus 220) out of a single battery charge.
- Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
- More heavily discounted: Has been on the market for longer (launched in August 2014).
If the number of relative strengths (bullet points above) is taken as a guide, the RX1R II emerges as the winner of the contest (12 : 9 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 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 RX1R II and the Sony A5100 place the cameras among the top in their class? Find out in the latest Best Prime Lens Compact 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 remains incomplete and does no justice, for example, to the way the RX1R II or the A5100 perform in practice. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.
Expert reviews
This is why expert reviews are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.
Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price (USD) |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Sony RX1R II | 5/5 | .. | .. | 82/100 | .. | 4.5/5 | Oct 2015 | 3,299 | ebay.com | |
2. | Sony A5100 | 4.5/5 | + | .. | .. | 4.5/5 | 5/5 | Aug 2014 | 549 | ebay.com | |
3. | Canon 5DS | .. | + | .. | 83/100 | 4.5/5 | 4.5/5 | Feb 2015 | 3,699 | ebay.com | |
4. | Canon 5DS R | 5/5 | + | .. | 83/100 | 5/5 | 4.5/5 | Feb 2015 | 3,699 | ebay.com | |
5. | Leica Q Typ 116 | 5/5 | .. | .. | 80/100 | 4.5/5 | 4.5/5 | Jun 2015 | 4,249 | ebay.com | |
6. | Nikon D810 | 5/5 | .. | 5/5 | 86/100 | 5/5 | 4.5/5 | Jun 2014 | 3,299 | ebay.com | |
7. | Sony A7R | 5/5 | + + | .. | 82/100 | 4.5/5 | 5/5 | Oct 2013 | 2,299 | ebay.com | |
8. | Sony A7R II | 5/5 | + + | 5/5 | 90/100 | 5/5 | 5/5 | Jun 2015 | 3,199 | ebay.com | |
9. | Sony A7S | 4/5 | .. | .. | 86/100 | 4.5/5 | 5/5 | Apr 2014 | 2,499 | ebay.com | |
10. | Sony A99 II | .. | .. | 4.5/5 | 85/100 | 4.5/5 | 4.5/5 | Sep 2016 | 3,199 | ebay.com | |
11. | Sony A3000 | 3/5 | + | .. | .. | 4/5 | 4/5 | Aug 2013 | 329 | ebay.com | |
12. | Sony A5000 | 3/5 | + | .. | .. | 4.5/5 | 4.5/5 | Jan 2014 | 449 | ebay.com | |
13. | Sony A6000 | 5/5 | + | 4.5/5 | 80/100 | 4.5/5 | 5/5 | Feb 2014 | 599 | ebay.com | |
14. | Sony NEX-3 | .. | .. | .. | 70/100 | 4.5/5 | 4/5 | May 2010 | 599 | ebay.com | |
15. | Sony NEX-3N | 3/5 | .. | .. | .. | 4.5/5 | 4.5/5 | Feb 2013 | 499 | ebay.com | |
16. | Sony RX1 | 5/5 | .. | .. | 79/100 | 4/5 | 4.5/5 | Sep 2012 | 2,799 | ebay.com | |
17. | Sony RX1R | 5/5 | .. | .. | .. | 4/5 | 4.5/5 | Jun 2013 | 2,799 | 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. Hence, a score should always be seen in the context of the camera's market launch date and its price, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, please note that some of the review sites have changed their methodology and reporting over time.
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.
- Canon 1200D vs Sony A5100
- Canon 1D Mark IV vs Sony A5100
- Canon G1 X Mark III vs Sony A5100
- Canon M50 vs Sony RX1R II
- Canon XTi vs Sony A5100
- Fujifilm X100VI vs Sony RX1R II
- Leica SL2-S vs Sony RX1R II
- Nikon D5200 vs Sony A5100
- Nikon D5200 vs Sony RX1R II
- Panasonic GX9 vs Sony RX1R II
- Panasonic S5 II vs Sony RX1R II
- Sony A5100 vs Sony A7S III
Specifications: Sony RX1R II 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 RX1R II | Sony A5100 |
---|---|---|
Camera Type | Fixed lens compact camera | Mirrorless system camera |
Camera Lens | 35mm f/2.0 | Sony E mount lenses |
Launch Date | October 2015 | August 2014 |
Launch Price | USD 3,299 | USD 549 |
Sensor Specs | Sony RX1R II | Sony A5100 |
Sensor Technology | BSI-CMOS | CMOS |
Sensor Format | Full Frame Sensor | APS-C Sensor |
Sensor Size | 35.8 x 23.9 mm | 23.5 x 15.6 mm |
Sensor Area | 855.62 mm2 | 366.6 mm2 |
Sensor Diagonal | 43 mm | 28.2 mm |
Crop Factor | 1.0x | 1.5x |
Sensor Resolution | 42.2 Megapixels | 24 Megapixels |
Image Resolution | 7952 x 5304 pixels | 6000 x 4000 pixels |
Pixel Pitch | 4.50 μm | 3.91 μm |
Pixel Density | 4.93 MP/cm2 | 6.55 MP/cm2 |
Moiré control | no AA filter | Anti-Alias filter |
Movie Capability | 1080/60p Video | 1080/60p Video |
ISO Setting | 100 - 25,600 ISO | 100 - 25,600 ISO |
ISO Boost | 50 - 102,400 ISO | no Enhancement |
Image Processor | BIONZ X | BIONZ X |
DXO Sensor Quality (score) | 97 | 80 |
DXO Color Depth (bits) | 25.8 | 23.8 |
DXO Dynamic Range (EV) | 13.9 | 12.7 |
DXO Low Light (ISO) | 3204 | 1347 |
Screen Specs | Sony RX1R II | Sony A5100 |
Viewfinder Type | Electronic viewfinder | no viewfinder |
Viewfinder Field of View | 100% | |
Viewfinder Magnification | 0.74x | |
Viewfinder Resolution | 2360k dots | |
LCD Framing | Live View | Live View |
Rear LCD Size | 3.0inch | 3.0inch |
LCD Resolution | 1229k dots | 922k dots |
LCD Attachment | Tilting screen | Tilting screen |
Touch Input | no Touchscreen | Touchscreen |
Shooting Specs | Sony RX1R II | Sony A5100 |
Focus System | Contrast-detect AF | On-Sensor Phase-detect |
Manual Focusing Aid | Focus Peaking | Focus Peaking |
Max Shutter Speed (mechanical) | 1/4000s | 1/4000s |
Continuous Shooting | 5 shutter flaps/s | 6 shutter flaps/s |
Fill Flash | no On-Board Flash | Built-in Flash |
Storage Medium | MS or SDXC cards | MS or SDXC cards |
Single or Dual Card Slots | Single card slot | Single card slot |
UHS card support | UHS-I | UHS-I |
Connectivity Specs | Sony RX1R II | Sony A5100 |
External Flash | Hotshoe | no Hotshoe |
USB Connector | USB 2.0 | USB 2.0 |
HDMI Port | micro HDMI | micro HDMI |
Microphone Port | External MIC port | no MIC socket |
Wifi Support | Wifi built-in | Wifi built-in |
Near-Field Communication | NFC built-in | NFC built-in |
Body Specs | Sony RX1R II | Sony A5100 |
Battery Type | Sony NP-BX1 | Sony NP-FW50 |
Battery Life (CIPA) | 220 shots per charge | 400 shots per charge |
In-Camera Charging | USB charging | USB charging |
Body Dimensions |
113 x 65 x 72 mm (4.4 x 2.6 x 2.8 in) |
110 x 63 x 36 mm (4.3 x 2.5 x 1.4 in) |
Camera Weight | 507 g (17.9 oz) | 283 g (10.0 oz) |
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