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Sony A99 II vs NEX-3

The Sony Alpha ALT-A99 II and the Sony Alpha NEX-3 are two digital cameras that were officially introduced, respectively, in September 2016 and May 2010. The A99 II is a DSLR, while the NEX-3 is a mirrorless interchangeable lens camera. The cameras are based on a full frame (A99 II) and an APS-C (NEX-3) sensor. The A99 II has a resolution of 42.2 megapixels, whereas the NEX-3 provides 14 MP.

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

Headline Specifications
Sony A99 II
versus
Sony NEX-3
Sony A99 II   Sony NEX-3
Digital single lens reflex Mirrorless system camera
Sony A mount lenses Sony E mount lenses
42.2 MP – Full Frame sensor 14 MP – APS-C sensor
4K/30p Video 720/30p Video
ISO 100-25,600 ISO 200-12,800
Electronic viewfinder (2400k dots) Viewfinder optional
3.0" LCD – 1229k dots 3.0" LCD – 920k dots
Fully flexible screen (no touchscreen) Tilting screen (no touchscreen)
12 shutter flaps per second 7 shutter flaps per second
In-body stabilizationLens stabilization only
Weathersealed bodynot weather sealed
490 shots per battery charge330 shots per battery charge
143 x 104 x 76 mm, 849 g 117 x 62 x 33 mm, 297 g
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Check A99 II offers at
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Check NEX-3 offers at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Sony Alpha ALT-A99 II and the Sony Alpha NEX-3? 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 physical size and weight of the Sony A99 II and the Sony NEX-3 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 measures are rounded to the nearest millimeter.

The NEX-3 can be obtained in three different colors (black, silver, red), while the A99 II is only available in black.

Size Sony A99 II vs Sony NEX-3
Compare A99 II versus NEX-3 top
Comparison A99 II or NEX-3 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony NEX-3 is considerably smaller (51 percent) than the Sony A99 II. Moreover, the NEX-3 is substantially lighter (65 percent) than the A99 II. It is worth mentioning in this context that the A99 II is splash and dust resistant, while the NEX-3 does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the A99 II gets 490 shots out of its NP-FM500H battery, while the NEX-3 can take 330 images on a single charge of its NP-FW50 power pack.

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 A99 II 143 mm 104 mm 76 mm 849 g 490 Y Sep 2016 3,199ebay.com
2.
 
Sony NEX-3 117 mm 62 mm 33 mm 297 g 330 n May 2010 599ebay.com
3.
 
Canon 5DS R 152 mm 116 mm 76 mm 930 g 700 Y Feb 2015 3,699ebay.com
4.
 
Nikon D850 146 mm 124 mm 79 mm 1005 g 1840 Y Jul 2017 3,299 amazon.com
5.
 
Pentax K-1 137 mm 110 mm 86 mm 1010 g 760 Y Feb 2016 1,799ebay.com
6.
 
Sony A7R IIIA 127 mm 96 mm 74 mm 650 g 650 Y Apr 2021 3,199 amazon.com
7.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199ebay.com
8.
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 3,199ebay.com
9.
 
Sony A7S II 127 mm 96 mm 60 mm 627 g 370 Y Sep 2015 2,999ebay.com
10.
 
Sony A5100 110 mm 63 mm 36 mm 283 g 400 n Aug 2014 549ebay.com
11.
 
Sony NEX-3N 110 mm 62 mm 35 mm 269 g 480 n Feb 2013 499ebay.com
12.
 
Sony A99 147 mm 111 mm 78 mm 812 g 500 Y Sep 2012 2,799ebay.com
13.
 
Sony NEX-5R 111 mm 59 mm 39 mm 276 g 330 n Aug 2012 749ebay.com
14.
 
Sony NEX-5N 111 mm 59 mm 38 mm 269 g 460 n Aug 2011 699ebay.com
15.
 
Sony NEX-5 111 mm 59 mm 38 mm 287 g 330 n May 2010 699ebay.com
16.
 
Sony A850 156 mm 117 mm 82 mm 895 g 880 Y Aug 2009 1,999ebay.com
17.
 
Sony A900 156 mm 117 mm 82 mm 895 g 880 Y Sep 2008 2,999ebay.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 naturally be influenced heavily by the price. 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. The NEX-3 was launched at a markedly lower price (by 81 percent) than the A99 II, which puts it into a different market segment. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

Sensor comparison

The size of the sensor inside a digital camera is one of the key determinants 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. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Sony A99 II features a full frame sensor and the Sony NEX-3 an APS-C sensor. The sensor area in the NEX-3 is 58 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.

In terms of chip-set technology, the A99 II uses a more advanced image processing engine (BIONZ X) than the NEX-3 (BIONZ), with benefits for noise reduction, color accuracy, and processing speed.

Sony A99 II and Sony NEX-3 sensor measures

With 42.2MP, the A99 II offers a higher resolution than the NEX-3 (14MP), but the A99 II has smaller individual pixels (pixel pitch of 4.52μm versus 5.11μm for the NEX-3). However, the A99 II is a much more recent model (by 6 years and 4 months) than the NEX-3, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that the A99 II has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony A99 II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A99 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 NEX-3 are 23 x 15.3 inches or 58.3 x 38.8 cm for good quality, 18.4 x 12.2 inches or 46.7 x 31 cm for very good quality, and 15.3 x 10.2 inches or 38.9 x 25.9 cm for excellent quality prints.

The A99 II has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Sony Alpha ALT-A99 II has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 50-25600. The corresponding ISO settings for the Sony Alpha NEX-3 are ISO 200 to ISO 12800 (no boost).

In terms of underlying technology, the A99 II is build around a BSI-CMOS sensor, while the NEX-3 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.

A99 II versus NEX-3 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). Of the two cameras under review, the A99 II provides substantially higher image quality than the NEX-3, with an overall score that is 24 points higher. This advantage is based on 3.3 bits higher color depth, 1.4 EV in additional dynamic range, and 1.5 stops in additional low light sensitivity. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-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 A99 II Full Frame 42.2 7952 53044K/30p25.413.4231792
2.
 
Sony NEX-3 APS-C 14.0 4592 3056720/30p22.112.083068
3.
 
Canon 5DS R Full Frame 50.3 8688 57921080/30p24.612.4230886
4.
 
Nikon D850 Full Frame 45.4 8256 55044K/30p26.414.82660100
5.
 
Pentax K-1 Full Frame 36.2 7360 49121080/60i25.414.6328096
6.
 
Sony A7R IIIA Full Frame 42.2 7952 53044K/30p26.014.73523100
7.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
8.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
9.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385
10.
 
Sony A5100 APS-C 24.0 6000 40001080/60p23.812.7134780
11.
 
Sony NEX-3N APS-C 16.0 4912 32641080/60i22.812.5106774
12.
 
Sony A99 Full Frame 24.0 6000 40001080/60p25.014.0155589
13.
 
Sony NEX-5R APS-C 16.0 4912 32641080/60i23.713.191078
14.
 
Sony NEX-5N APS-C 16.0 4912 32641080/60i23.612.7107977
15.
 
Sony NEX-5 APS-C 14.0 4592 30561080/60i22.212.279669
16.
 
Sony A850 Full Frame 24.4 6048 4032none23.812.2141579
17.
 
Sony A900 Full Frame 24.4 6048 4032none23.712.3143179
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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 A99 II provides a higher video resolution than the NEX-3. It can shoot video footage at 4K/30p, while the NEX-3 is limited to 720/30p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the A99 II has an electronic viewfinder (2400k dots), which can be very helpful when shooting in bright sunlight. In contrast, the NEX-3 relies on live view and the rear LCD for framing. That said, the NEX-3 can be equipped with an optional viewfinder – the FDA-SV1. The table below summarizes some of the other core capabilities of the Sony A99 II and Sony NEX-3 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 A99 II2400 Y3.0 / 1229 full-flex n 1/8000s 12.0/s n Y
2.
 
Sony NEX-3optional n3.0 / 920 tilting n 1/4000s 7.0/s n n
3.
 
Canon 5DS Roptical Y3.2 / 1040 fixed n 1/8000s 5.0/s n n
4.
 
Nikon D850optical Y3.2 / 2359 tilting Y 1/8000s 9.0/s n n
5.
 
Pentax K-1optical Y3.2 / 1037 full-flex n 1/8000s 4.4/s n Y
6.
 
Sony A7R IIIA3686 n3.0 / 2340 tilting Y 1/8000s 10.0/s n Y
7.
 
Sony A7R III3686 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
8.
 
Sony A7R II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
9.
 
Sony A7S II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
10.
 
Sony A5100none n3.0 / 922 tilting Y 1/4000s 6.0/s Y n
11.
 
Sony NEX-3Noptional n3.0 / 460 tilting n 1/4000s 4.0/s Y n
12.
 
Sony A992359 Y3.0 / 1229 full-flex n 1/8000s 6.0/s n Y
13.
 
Sony NEX-5Roptional n3.0 / 920 tilting Y 1/4000s 10.0/s n n
14.
 
Sony NEX-5Noptional n3.0 / 920 tilting Y 1/4000s 10.0/s n n
15.
 
Sony NEX-5optional n3.0 / 920 tilting n 1/4000s 7.0/s n n
16.
 
Sony A850optical Y3.0 / 922 fixed n 1/8000s 3.0/s n Y
17.
 
Sony A900optical Y3.0 / 922 fixed n 1/8000s 5.0/s n Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
padding

One feature that is present on the A99 II, but is missing on the NEX-3 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.

Both cameras have an articulated rear screen that can be turned to be front-facing. This feature will be particularly appreciated by vloggers and photographers who are interested in taking selfies.

Concerning the storage of imaging data, both the A99 II and the NEX-3 write their files to SDXC or Memory Stick PRO Duo cards. The A99 II features dual card slots, which can be very useful in case a memory card fails. In contrast, the NEX-3 only has one slot. The A99 II supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the NEX-3 cannot take advantage of Ultra High Speed SD cards.

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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 ALT-A99 II and Sony Alpha NEX-3 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 A99 IIYstereo / monoYYmicro2.0YYY
2.
 
Sony NEX-3Ystereo / mono--mini2.0---
3.
 
Canon 5DS RYmono / monoY-mini3.0---
4.
 
Nikon D850Ystereo / monoYYmini3.0YYY
5.
 
Pentax K-1Ystereo / monoYYmicro2.0Y--
6.
 
Sony A7R IIIAYstereo / monoYYmicro3.2YYY
7.
 
Sony A7R IIIYstereo / monoYYmicro3.1YYY
8.
 
Sony A7R IIYstereo / monoYYmicro2.0YY-
9.
 
Sony A7S IIYstereo / monoYYmicro2.0YY-
10.
 
Sony A5100-stereo / mono--micro2.0YY-
11.
 
Sony NEX-3N-stereo / mono--micro2.0---
12.
 
Sony A99Ystereo / monoYYmini2.0---
13.
 
Sony NEX-5RYstereo / mono--mini2.0Y--
14.
 
Sony NEX-5NYstereo / mono--mini2.0---
15.
 
Sony NEX-5Ystereo / mono--mini2.0---
16.
 
Sony A850Y- / ---mini2.0---
17.
 
Sony A900Y- / ---mini2.0---
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It is notable that the A99 II has a microphone port, which is missing on the NEX-3. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.

Studio photographers will appreciate that the Sony A99 II (unlike the NEX-3) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the A99 II and the NEX-3 have been discontinued, but can regularly be found used on ebay. The NEX-3 was replaced by the Sony NEX-3N, while the A99 II does not have a direct successor. Further information on the features and operation of the A99 II and NEX-3 can be found, respectively, in the Sony A99 II Manual (free pdf) or the online Sony NEX-3 Manual.

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Review summary

So how do things add up? Is there a clear favorite between the Sony A99 II and the Sony NEX-3? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.


Advantages of the Sony Alpha ALT-A99 II:

  • More detail: Offers more megapixels (42.2 vs 14MP) with a 73% higher linear resolution.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (24 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (3.3 bits more color depth).
  • More dynamic range: Captures a larger spectrum of light and dark details (1.4 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (1.5 stops ISO advantage).
  • Better jpgs: Has a more modern image processing engine (BIONZ X vs BIONZ).
  • Better video: Provides higher definition movie capture (4K/30p vs 720/30p).
  • 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.
  • Easier framing: Has an electronic viewfinder for image composition and settings control.
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • More detailed LCD: Has a higher resolution rear screen (1229k vs 920k dots).
  • More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (12 vs 7 flaps/sec) to capture the decisive moment.
  • Longer lasting: Can take more shots (490 versus 330) 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.
  • 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.
  • 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.
  • Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
  • More modern: Reflects 6 years and 4 months of technical progress since the NEX-3 launch.


Reasons to prefer the Sony Alpha NEX-3:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • More compact: Is smaller (117x62mm vs 143x104mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 552g or 65 percent) and is thus easier to take along.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • More affordable: Was introduced into a lower priced category (81 percent cheaper at launch).
  • More heavily discounted: Has been around for much longer (launched in May 2010).

If the count of individual advantages (bullet points above) is taken as a guide, the A99 II is the clear winner of the match-up (27 : 6 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 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.

A99 II 27:06 NEX-3

How about other alternatives? Do the specifications of the Sony A99 II and the Sony NEX-3 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of 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 A99 II or the NEX-3 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 hands-on reviews by experts are important. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.

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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 A99 II....4.5/585/1004.5/54.5/5 Sep 2016 3,199ebay.com
2.
 
Sony NEX-3......70/1004.5/54/5 May 2010 599ebay.com
3.
 
Canon 5DS R5/5+..83/1005/54.5/5 Feb 2015 3,699ebay.com
4.
 
Nikon D8504.5/5+ +5/589/1004.5/55/5 Jul 2017 3,299 amazon.com
5.
 
Pentax K-15/5....84/1005/55/5 Feb 2016 1,799ebay.com
6.
 
Sony A7R IIIA..+ +4/590/1004.5/55/5 Apr 2021 3,199 amazon.com
7.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 3,199ebay.com
8.
 
Sony A7R II5/5+ +5/590/1005/55/5 Jun 2015 3,199ebay.com
9.
 
Sony A7S II5/5+....4.5/55/5 Sep 2015 2,999ebay.com
10.
 
Sony A51004.5/5+....4.5/55/5 Aug 2014 549ebay.com
11.
 
Sony NEX-3N3/5......4.5/54.5/5 Feb 2013 499ebay.com
12.
 
Sony A995/5....84/1004.5/54.5/5 Sep 2012 2,799ebay.com
13.
 
Sony NEX-5R........4.5/54.5/5 Aug 2012 749ebay.com
14.
 
Sony NEX-5N3/5+ +..79/1004.5/54.5/5 Aug 2011 699ebay.com
15.
 
Sony NEX-53/5+ +..71/1004.5/54/5 May 2010 699ebay.com
16.
 
Sony A8503/5....75/100..4.5/5 Aug 2009 1,999ebay.com
17.
 
Sony A900..+ +..+ +4.5/55/5 Sep 2008 2,999ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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The above review scores should be interpreted with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

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Check A99 II offers at
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Check NEX-3 offers at
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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.

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    Specifications: Sony A99 II vs Sony NEX-3

    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 A99 II Sony NEX-3
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Sony A mount lenses Sony E mount lenses
    Launch Date September 2016 May 2010
    Launch Price USD 3,199 USD 599
    Sensor Specs Sony A99 II Sony NEX-3
    Sensor Technology BSI-CMOS CMOS
    Sensor Format Full Frame Sensor APS-C Sensor
    Sensor Size 35.9 x 24.0 mm 23.4 x 15.6 mm
    Sensor Area 861.6 mm2 365.04 mm2
    Sensor Diagonal 43.2 mm 28.1 mm
    Crop Factor 1.0x 1.5x
    Sensor Resolution 42.2 Megapixels 14 Megapixels
    Image Resolution 7952 x 5304 pixels 4592 x 3056 pixels
    Pixel Pitch 4.52 μm 5.11 μm
    Pixel Density 4.90 MP/cm2 3.84 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 4K/30p Video 720/30p Video
    ISO Setting 100 - 25,600 ISO 200 - 12,800 ISO
    ISO Boost 50 - 25,600 ISO no Enhancement
    Image Processor BIONZ X BIONZ
    DXO Sensor Quality (score) 92 68
    DXO Color Depth (bits) 25.4 22.1
    DXO Dynamic Range (EV) 13.4 12.0
    DXO Low Light (ISO) 2317 830
    Screen Specs Sony A99 II Sony NEX-3
    Viewfinder Type Electronic viewfinder Viewfinder optional
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.78x
    Viewfinder Resolution 2400k dots
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1229k dots 920k dots
    LCD Attachment Fully flexible screen Tilting screen
    Shooting Specs Sony A99 II Sony NEX-3
    Focus System Phase-detect AF Contrast-detect AF
    Manual Focusing AidFocus Peakingno Peaking Feature
    Continuous Shooting 12 shutter flaps/s 7 shutter flaps/s
    Image StabilizationIn-body stabilizationLens stabilization only
    Fill Flash no On-Board Flash no On-Board 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 UHS-I no
    Connectivity Specs Sony A99 II Sony NEX-3
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI mini HDMI
    Microphone Port External MIC port no MIC socket
    Headphone Socket Headphone port no Headphone port
    Wifi Support Wifi built-in no Wifi
    Near-Field Communication NFC built-in no NFC
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Sony A99 II Sony NEX-3
    Environmental SealingWeathersealed bodynot weather sealed
    Battery Type NP-FM500H NP-FW50
    Battery Life (CIPA)490 shots per charge330 shots per charge
    Body Dimensions 143 x 104 x 76 mm
    (5.6 x 4.1 x 3.0 in)
    117 x 62 x 33 mm
    (4.6 x 2.4 x 1.3 in)
    Camera Weight 849 g (29.9 oz) 297 g (10.5 oz)
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    Check A99 II offers at
    ebay.com
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    Check NEX-3 offers at
    ebay.com

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