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Sony A900 vs RX100 III

The Sony Alpha A900 and the Sony Cyber-shot DSC-RX100 III are two digital cameras that were announced, respectively, in September 2008 and May 2014. The A900 is a DSLR, while the RX100 III is a fixed lens compact. The cameras are based on a full frame (A900) and an one-inch (RX100 III) sensor. The A900 has a resolution of 24.4 megapixels, whereas the RX100 III provides 20 MP.

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

Headline Specifications
Sony A900
versus
Sony RX100 III
Sony A900   Sony RX100 III
Digital single lens reflex Fixed lens compact camera
Sony A mount lenses 24-70mm f/1.8-2.8
24.4 MP – Full Frame sensor 20 MP – 1" sensor
no Video 1080/60p Video
ISO 200-3,200 (100 - 6,400) ISO 100-12,800 (80 - 25,600)
Optical viewfinder Electronic viewfinder (1440k dots)
3.0" LCD – 922k dots 3.0" LCD – 1229k dots
Fixed screen (not touch-sensitive) Tilting screen (no touchscreen)
5 shutter flaps per second 10 shutter flaps per second
In-body stabilizationLens-based stabilization
Weathersealed bodynot weather sealed
880 shots per battery charge320 shots per battery charge
156 x 117 x 82 mm, 895 g 102 x 58 x 41 mm, 290 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Sony Alpha A900 and the Sony Cyber-shot DSC-RX100 III? 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.

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Body comparison

The side-by-side display below illustrates the physical size and weight of the Sony A900 and the Sony RX100 III. 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 measures are rounded to the nearest millimeter.

Size Sony A900 vs Sony RX100 III
Compare A900 versus RX100 III top
Comparison A900 or RX100 III rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony RX100 III is considerably smaller (68 percent) than the Sony A900. It is worth mentioning in this context that the A900 is splash and dust resistant, while the RX100 III does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the RX100 III has a lens built in, whereas the A900 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.

Concerning battery life, the A900 gets 880 shots out of its Sony NP-FM500H battery, while the RX100 III can take 320 images on a single charge of its Sony NP-BX1 power pack. The power pack in the RX100 III can be charged via the USB port, 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. 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.

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Body Specifications
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Sony A900 156 mm 117 mm 82 mm 895 g 880 Y Sep 2008 2,999ebay.com
2.
 
Sony RX100 III 102 mm 58 mm 41 mm 290 g 320 n May 2014 799ebay.com
3.
 
Canon G7 X 103 mm 60 mm 40 mm 304 g 210 n Sep 2014 699ebay.com
4.
 
Canon 5D Mark III 152 mm 116 mm 76 mm 950 g 950 Y Mar 2012 3,499ebay.com
5.
 
Canon 5D Mark II 152 mm 114 mm 75 mm 850 g 850 Y Sep 2008 3,499ebay.com
6.
 
Nikon D700 147 mm 123 mm 77 mm 1074 g 1000 Y Jul 2008 2,999ebay.com
7.
 
Panasonic S1 149 mm 110 mm 97 mm 1017 g 400 Y Feb 2019 2,499 amazon.com
8.
 
Sony RX100 VII 102 mm 58 mm 43 mm 302 g 260 n Jul 2019 1,199 amazon.com
9.
 
Sony A7 III 127 mm 96 mm 74 mm 650 g 610 Y Feb 2018 1,999 amazon.com
10.
 
Sony A9 127 mm 96 mm 63 mm 673 g 650 Y Apr 2017 4,499ebay.com
11.
 
Sony A99 II 143 mm 104 mm 76 mm 849 g 490 Y Sep 2016 3,199ebay.com
12.
 
Sony A7S II 127 mm 96 mm 60 mm 627 g 370 Y Sep 2015 2,999ebay.com
13.
 
Sony RX100 IV 102 mm 58 mm 41 mm 298 g 280 n Jun 2015 999ebay.com
14.
 
Sony RX100 II 102 mm 58 mm 38 mm 281 g 350 n Jun 2013 749ebay.com
15.
 
Sony A99 147 mm 111 mm 78 mm 812 g 500 Y Sep 2012 2,799ebay.com
16.
 
Sony RX100 102 mm 58 mm 36 mm 240 g 330 n Jun 2012 649ebay.com
17.
 
Sony A850 156 mm 117 mm 82 mm 895 g 880 Y Aug 2009 1,999ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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Any camera decision will obviously take relative prices into account. 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 RX100 III was launched at a lower price than the A900, despite having a lens built in. 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. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels in a sensor of the same technological generation. 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.

Of the two cameras under consideration, the Sony A900 features a full frame sensor and the Sony RX100 III an one-inch sensor. The sensor area in the RX100 III is 87 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 2.7. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Technology-wise, the RX100 III uses a more advanced image processing engine (BIONZ X) than the A900 (BIONZ), with benefits for noise reduction, color accuracy, and processing speed.

Sony A900 and Sony RX100 III sensor measures

With 24.4MP, the A900 offers a higher resolution than the RX100 III (20MP), but the A900 nevertheless has larger individual pixels (pixel pitch of 5.94μm versus 2.41μm for the RX100 III) due to its larger sensor. However, the RX100 III is a much more recent model (by 5 years and 8 months) than the A900, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels.

The resolution advantage of the Sony A900 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A900 for good quality output (200 dots per inch) amounts to 30.2 x 20.2 inches or 76.8 x 51.2 cm, for very good quality (250 dpi) 24.2 x 16.1 inches or 61.4 x 41 cm, and for excellent quality (300 dpi) 20.2 x 13.4 inches or 51.2 x 34.1 cm. The corresponding values for the Sony RX100 III are 27.4 x 18.2 inches or 69.5 x 46.3 cm for good quality, 21.9 x 14.6 inches or 55.6 x 37.1 cm for very good quality, and 18.2 x 12.2 inches or 46.3 x 30.9 cm for excellent quality prints.

The Sony Alpha A900 has a native sensitivity range from ISO 200 to ISO 3200, which can be extended to ISO 100-6400. The corresponding ISO settings for the Sony Cyber-shot DSC-RX100 III are ISO 100 to ISO 12800, with the possibility to increase the ISO range to 80-25600.

In terms of underlying technology, the A900 is build around a CMOS sensor, while the RX100 III 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.

A900 versus RX100 III MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 A900 provides substantially higher image quality than the RX100 III, with an overall score that is 12 points higher. This advantage is based on 1.3 bits higher color depth, and 1.5 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

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Sensor Characteristics
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Sony A900 Full Frame 24.4 6048 4032none23.712.3143179
2.
 
Sony RX100 III 1-inch 20.0 5472 36481080/60p22.412.349567
3.
 
Canon G7 X 1-inch 20.0 5472 36481080/60p23.012.755671
4.
 
Canon 5D Mark III Full Frame 22.1 5760 38401080/30p24.011.7229381
5.
 
Canon 5D Mark II Full Frame 21.0 5616 37441080/30p23.711.9181579
6.
 
Nikon D700 Full Frame 12.1 4256 2832none23.512.2230380
7.
 
Panasonic S1 Full Frame 24.0 6000 40004K/60p25.214.5333395
8.
 
Sony RX100 VII 1-inch 20.0 5472 36484K/30p21.812.441863
9.
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096
10.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792
11.
 
Sony A99 II Full Frame 42.2 7952 53044K/30p25.413.4231792
12.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385
13.
 
Sony RX100 IV 1-inch 20.0 5472 36484K/30p22.812.659170
14.
 
Sony RX100 II 1-inch 20.0 5472 36481080/60p22.512.448367
15.
 
Sony A99 Full Frame 24.0 6000 40001080/60p25.014.0155589
16.
 
Sony RX100 1-inch 20.0 5472 36481080/60p22.612.439066
17.
 
Sony A850 Full Frame 24.4 6048 4032none23.812.2141579
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Many modern cameras are not only capable of taking still images, but can also record movies. The RX100 III indeed provides for movie recording, while the A900 does not. The highest resolution format that the RX100 III can use is 1080/60p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the RX100 III has an electronic viewfinder (1440k dots), while the A900 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 viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the A900 has a higher magnification than the one of the RX100 III (0.74x vs 0.59x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Sony A900 and Sony RX100 III in connection with corresponding information for a sample of similar cameras.

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Core Features
# image 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 A900optical Y3.0 / 922 fixed n 1/8000s 5.0/s n Y
2.
 
Sony RX100 III1440 n3.0 / 1229 tilting n 1/2000s 10.0/s Y Y
3.
 
Canon G7 Xnone n3.0 / 1040 tilting Y 1/2000s 6.5/s Y Y
4.
 
Canon 5D Mark IIIoptical Y3.2 / 1040 fixed n 1/8000s 6.0/s n n
5.
 
Canon 5D Mark IIoptical Y3.0 / 920 fixed n 1/8000s 3.9/s n n
6.
 
Nikon D700optical Y3.0 / 922 fixed n 1/8000s 8.0/s Y n
7.
 
Panasonic S15760 Y3.2 / 2100 full-flex Y 1/8000s 9.0/s n Y
8.
 
Sony RX100 VII2359 n3.0 / 921 tilting Y 1/2000s 90.0/s Y Y
9.
 
Sony A7 III2359 n3.0 / 922 tilting Y 1/8000s 10.0/s n Y
10.
 
Sony A93686 n3.0 / 1440 tilting Y 1/8000s 20.0/s n Y
11.
 
Sony A99 II2400 Y3.0 / 1229 full-flex n 1/8000s 12.0/s n Y
12.
 
Sony A7S II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
13.
 
Sony RX100 IV2359 n3.0 / 1228 tilting n 1/2000s 16.0/s Y Y
14.
 
Sony RX100 IIoptional n3.0 / 1229 tilting n 1/2000s 10.0/s Y Y
15.
 
Sony A992359 Y3.0 / 1229 full-flex n 1/8000s 6.0/s n Y
16.
 
Sony RX100none n3.0 / 1229 fixed n 1/2000s 10.0/s Y Y
17.
 
Sony A850optical Y3.0 / 922 fixed n 1/8000s 3.0/s n Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One feature that is present on the A900, but is missing on the RX100 III is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.

The RX100 III 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 A900 does not have a selfie-screen.

The A900 writes its imaging data to Compact Flash or Memory Stick PRO Duo cards, while the RX100 III uses SDXC or Memory Stick PRO Duo cards. The A900 features dual card slots, which can be very useful in case a memory card fails. In contrast, the RX100 III only has one slot.

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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 A900 and Sony Cyber-shot DSC-RX100 III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Sony A900Y- / ---mini2.0---
2.
 
Sony RX100 III-stereo / mono--micro2.0YY-
3.
 
Canon G7 X-stereo / mono--micro2.0YY-
4.
 
Canon 5D Mark IIIYmono / monoYYmini2.0---
5.
 
Canon 5D Mark IIYmono / monoY-mini2.0---
6.
 
Nikon D700Y- / ---mini2.0---
7.
 
Panasonic S1Ystereo / monoYYfull3.1Y-Y
8.
 
Sony RX100 VII-stereo / monoY-micro2.0YYY
9.
 
Sony A7 IIIYstereo / monoYYmicro3.1YYY
10.
 
Sony A9Ystereo / monoYYmicro2.0YYY
11.
 
Sony A99 IIYstereo / monoYYmicro2.0YYY
12.
 
Sony A7S IIYstereo / monoYYmicro2.0YY-
13.
 
Sony RX100 IV-stereo / mono--micro2.0YY-
14.
 
Sony RX100 IIYstereo / mono--micro2.0YY-
15.
 
Sony A99Ystereo / monoYYmini2.0---
16.
 
Sony RX100-stereo / mono--micro2.0---
17.
 
Sony A850Y- / ---mini2.0---
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It is notable that the A900 has a hotshoe, while the RX100 III does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.

Studio photographers will appreciate that the Sony A900 (unlike the RX100 III) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the A900 and the RX100 III have been discontinued, but can regularly be found used on ebay. The A900 was replaced by the Sony A99, while the RX100 III was followed by the Sony RX100 IV. Further information on the features and operation of the A900 and RX100 III can be found, respectively, in the Sony A900 Manual (free pdf) or the online Sony RX100 III Manual.

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Review summary

So how do things add up? Is there a clear favorite between the Sony A900 and the Sony RX100 III? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.


Reasons to prefer the Sony Alpha A900:

  • More detail: Offers more megapixels (24.4 vs 20MP) with a 11% higher linear resolution.
  • Better image quality: Scores substantially higher (12 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (1.3 bits more color depth).
  • Better low-light sensitivity: Requires less light for good images (1.5 stops ISO advantage).
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.74x vs 0.59x).
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
  • More flexible: Can take a variety of interchangeable lenses, including specialty optics.
  • Longer lasting: Can take more shots (880 versus 320) on a single battery charge.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • 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 heavily discounted: Has been available for much longer (launched in September 2008).


Advantages of the Sony Cyber-shot DSC-RX100 III:

  • Better jpgs: Has a more modern image processing engine (BIONZ X vs BIONZ).
  • Broader imaging potential: Can capture not only stills but also 1080/60p video.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More detailed LCD: Has a higher resolution rear screen (1229k vs 922k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (10 vs 5 flaps/sec) to capture the decisive moment.
  • Ready to shoot: Comes with an integrated lens, while the A900 requires a separate lens.
  • More compact: Is smaller (102x58mm vs 156x117mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight even though it has a lens built in (unlike the A900).
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • 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.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More modern: Reflects 5 years and 8 months of technical progress since the A900 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the RX100 III comes out slightly ahead of the A900 (16 : 15 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.

A900 15:16 RX100 III

How about other alternatives? Do the specifications of the Sony A900 and the Sony RX100 III place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Travel-Zoom Camera listings 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 remains incomplete and does no justice, for example, to the way the A900 or the RX100 III 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 where reviews by experts come in. 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.

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Expert Camera Reviews
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Sony A900..+ +..+ +4.5/55/5 Sep 2008 2,999ebay.com
2.
 
Sony RX100 III5/5+ +..82/1004.5/55/5 May 2014 799ebay.com
3.
 
Canon G7 X4/5+ +..77/1004.5/54.5/5 Sep 2014 699ebay.com
4.
 
Canon 5D Mark III..+ +..82/1004.5/54.5/5 Mar 2012 3,499ebay.com
5.
 
Canon 5D Mark II4/591/100..79/1004/5.. Sep 2008 3,499ebay.com
6.
 
Nikon D700..89/100..+ +4.5/54.5/5 Jul 2008 2,999ebay.com
7.
 
Panasonic S14.5/5+ +4.5/588/1004.5/54/5 Feb 2019 2,499 amazon.com
8.
 
Sony RX100 VII4.5/5..4/5..4/55/5 Jul 2019 1,199 amazon.com
9.
 
Sony A7 III..+ +4.5/589/1005/55/5 Feb 2018 1,999 amazon.com
10.
 
Sony A95/5+ +4.8/589/1005/55/5 Apr 2017 4,499ebay.com
11.
 
Sony A99 II....4.5/585/1004.5/54.5/5 Sep 2016 3,199ebay.com
12.
 
Sony A7S II5/5+....4.5/55/5 Sep 2015 2,999ebay.com
13.
 
Sony RX100 IV4.5/5+ +..85/1004/54.5/5 Jun 2015 999ebay.com
14.
 
Sony RX100 II5/5+ +..79/1004.5/54.5/5 Jun 2013 749ebay.com
15.
 
Sony A995/5....84/1004.5/54.5/5 Sep 2012 2,799ebay.com
16.
 
Sony RX1005/5+ +..78/1004/55/5 Jun 2012 649ebay.com
17.
 
Sony A8503/5....75/100..4.5/5 Aug 2009 1,999ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. A score, therefore, has to be seen in close connection to the price and market introduction time 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.

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Other camera comparisons

Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just use the search menu below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Sony A900 vs Sony RX100 III

    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 Specifications
    Camera Model Sony A900 Sony RX100 III
    Camera Type Digital single lens reflex Fixed lens compact camera
    Camera Lens Sony A mount lenses 24-70mm f/1.8-2.8
    Launch Date September 2008 May 2014
    Launch Price USD 2,999 USD 799
    Sensor Specs Sony A900 Sony RX100 III
    Sensor Technology CMOS BSI-CMOS
    Sensor Format Full Frame Sensor 1" Sensor
    Sensor Size 35.9 x 24.0 mm 13.2 x 8.8 mm
    Sensor Area 861.6 mm2 116.16 mm2
    Sensor Diagonal 43.2 mm 15.9 mm
    Crop Factor 1.0x 2.7x
    Sensor Resolution 24.4 Megapixels 20 Megapixels
    Image Resolution 6048 x 4032 pixels 5472 x 3648 pixels
    Pixel Pitch 5.94 μm 2.41 μm
    Pixel Density 2.83 MP/cm2 17.18 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability no Video 1080/60p Video
    ISO Setting 200 - 3,200 ISO 100 - 12,800 ISO
    ISO Boost 100 - 6,400 ISO 80 - 25,600 ISO
    Image Processor BIONZ BIONZ X
    DXO Sensor Quality (score) 79 67
    DXO Color Depth (bits) 23.7 22.4
    DXO Dynamic Range (EV) 12.3 12.3
    DXO Low Light (ISO) 1431 495
    Screen Specs Sony A900 Sony RX100 III
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.74x 0.59x
    Viewfinder Resolution 1440k dots
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 922k dots 1229k dots
    LCD Attachment Fixed screen Tilting screen
    Shooting Specs Sony A900 Sony RX100 III
    Focus System Phase-detect AF Contrast-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/2000s
    Continuous Shooting 5 shutter flaps/s 10 shutter flaps/s
    Image StabilizationIn-body stabilizationLens-based stabilization
    Fill Flash no On-Board Flash Built-in Flash
    Storage Medium CF or MS cards MS or SDXC cards
    Single or Dual Card Slots Dual card slots Single card slot
    Connectivity Specs Sony A900 Sony RX100 III
    External Flash Hotshoe no Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI micro HDMI
    Wifi Support no Wifi Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Body Specs Sony A900 Sony RX100 III
    Environmental SealingWeathersealed bodynot weather sealed
    Battery Type Sony NP-FM500H Sony NP-BX1
    Battery Life (CIPA)880 shots per charge320 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 156 x 117 x 82 mm
    (6.1 x 4.6 x 3.2 in)
    102 x 58 x 41 mm
    (4.0 x 2.3 x 1.6 in)
    Camera Weight 895 g (31.6 oz) 290 g (10.2 oz)
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    Check A900 offers at
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    Check RX100 III offers at
    ebay.com

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