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Nikon D3100 vs Sony A1

The Nikon D3100 and the Sony A1 are two digital cameras that were announced, respectively, in August 2010 and January 2021. The D3100 is a DSLR, while the A1 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (D3100) and a full frame (A1) sensor. The Nikon has a resolution of 14.2 megapixels, whereas the Sony provides 49.8 MP.

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

Headline Specifications
Nikon D3100
versus
Sony A1
Nikon D3100 Sony A1
Digital single lens reflex Mirrorless system camera
Nikon F mount lenses Sony E mount lenses
14.2 MP, APS-C Sensor 49.8 MP, Full Frame Sensor
1080/24p Video 8k/30p Video
ISO 100-3,200 (100 - 12,800) ISO 100-32,000 (500 - 102,400)
Optical viewfinder Electronic viewfinder (9437k dots)
3.0 LCD, 230k dots 3.0 LCD, 1440k dots
Fixed screen (not touch-sensitive) Tilting touchscreen
3 shutter flaps per second 10 shutter flaps per second
Lens stabilization onlyIn-body stabilization
not weather sealedWeathersealed body
550 shots per battery charge530 shots per battery charge
124 x 96 x 75 mm, 505 g 129 x 97 x 81 mm, 737 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D3100 and the Sony A1? 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 side-by-side display below illustrates the physical size and weight of the Nikon D3100 and the Sony A1. 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 D3100 can be obtained in two different colors (black, red), while the A1 is only available in black.

Size Nikon D3100 vs Sony A1
Compare D3100 versus A1 top
Comparison D3100 or A1 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A1 is somewhat larger (5 percent) than the Nikon D3100. Moreover, the A1 is substantially heavier (46 percent) than the D3100. It is noteworthy in this context that the A1 is splash and dust-proof, while the D3100 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 Nikon Lens Catalog (D3100) and the Sony FE Lens Catalog (A1). Mirrorless cameras, such as the A1, have moreover the advantage that they can use many lenses from other systems via adapters, as they have a relatively short flange to focal plane distance.

Concerning battery life, the D3100 gets 550 shots out of its EN-EL14 battery, while the A1 can take 530 images on a single charge of its NP-FZ100 power pack. The power pack in the A1 can be charged via the USB port, which can be very convenient when travelling.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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.

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Body Specifications
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D3100 124 mm 96 mm 75 mm 505 g 550 n Aug 2010 599 i
2.
 
Sony A1 129 mm 97 mm 81 mm 737 g 530 Y Jan 2021 6,499 i
3.
 
Nikon D3200 125 mm 96 mm 77 mm 505 g 540 n Apr 2012 599 i
4.
 
Nikon D5100 128 mm 97 mm 79 mm 560 g 660 n Apr 2011 749 i
5.
 
Nikon D7000 132 mm 105 mm 77 mm 780 g 1050 Y Sep 2010 1,499 i
6.
 
Nikon D3000 126 mm 97 mm 64 mm 536 g 500 n Jul 2009 599 i
7.
 
Nikon D5000 127 mm 104 mm 80 mm 590 g 510 n Apr 2009 749 i
8.
 
Nikon D60 126 mm 94 mm 64 mm 522 g 500 n Jan 2008 629 i
9.
 
Nikon D40X 124 mm 94 mm 64 mm 522 g 520 n Mar 2007 729 i
10.
 
Nikon D40 124 mm 94 mm 64 mm 522 g 470 n Nov 2006 499 i
11.
 
Sony A7S III 127 mm 97 mm 81 mm 699 g 600 Y Jul 2020 3,499 i
12.
 
Sony A7R IV 129 mm 96 mm 78 mm 665 g 670 Y Jul 2019 3,499 i
13.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199 i
14.
 
Sony A9 127 mm 96 mm 63 mm 673 g 650 Y Apr 2017 4,499 i
15.
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 3,199 i
16.
 
Sony NEX-5N 111 mm 59 mm 38 mm 269 g 460 n Aug 2011 699 i
17.
 
Sony NEX-C3 110 mm 60 mm 33 mm 225 g 400 n Jun 2011 599 i
Notes: 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 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 D3100 was launched at a markedly lower price (by 91 percent) than the A1, 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.

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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 more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Nikon D3100 features an APS-C sensor and the Sony A1 a full frame sensor. The sensor area in the A1 is 142 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Nikon D3100 and Sony A1 sensor measures

With 49.8MP, the A1 offers a higher resolution than the D3100 (14.2MP), but the A1 has smaller individual pixels (pixel pitch of 4.16μm versus 5.01μm for the D3100). Yet, the A1 is a much more recent model (by 10 years and 5 months) than the D3100, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the A1 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony A1 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A1 for good quality output (200 dots per inch) amounts to 43.2 x 28.8 inches or 109.7 x 73.2 cm, for very good quality (250 dpi) 34.6 x 23 inches or 87.8 x 58.5 cm, and for excellent quality (300 dpi) 28.8 x 19.2 inches or 73.2 x 48.8 cm. The corresponding values for the Nikon D3100 are 23 x 15.4 inches or 58.5 x 39 cm for good quality, 18.4 x 12.3 inches or 46.8 x 31.2 cm for very good quality, and 15.4 x 10.2 inches or 39 x 26 cm for excellent quality prints.

The A1 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Unlike the D3100, the A1 has the capacity to capture high quality composite images (YESMP) by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).

The Nikon D3100 has a native sensitivity range from ISO 100 to ISO 3200, which can be extended to ISO 100-12800. The corresponding ISO settings for the Sony A1 are ISO 100 to ISO 32000, with the possibility to increase the ISO range to 500-102400.

D3100 versus A1 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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. 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
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Nikon D3100 APS-C 14.2 4608 30721080/24p22.511.3919 67
2.
 
Sony A1 Full Frame 49.8 8640 57608k/30p...... ..
3.
 
Nikon D3200 APS-C 24.1 6016 40001080/30p24.113.21131 81
4.
 
Nikon D5100 APS-C 16.1 4928 32641080/30p23.513.61183 80
5.
 
Nikon D7000 APS-C 16.1 4928 326410800/24p23.513.91167 80
6.
 
Nikon D3000 APS-C 10.0 3872 2592none22.311.1563 62
7.
 
Nikon D5000 APS-C 12.2 4288 2848720/24p22.712.5868 72
8.
 
Nikon D60 APS-C 10.0 3872 2592none22.511.4562 65
9.
 
Nikon D40X APS-C 10.0 3872 2592none22.411.4516 63
10.
 
Nikon D40 APS-C 6.0 3008 2000none21.011.0561 56
11.
 
Sony A7S III Full Frame 12.0 4240 28324K/120p23.713.92520 86
12.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.83344 99
13.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523 100
14.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.33517 92
15.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.93434 98
16.
 
Sony NEX-5N APS-C 16.0 4912 32641080/60i23.612.71079 77
17.
 
Sony NEX-C3 APS-C 16.0 4912 3264720/30p22.712.21083 73

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the A1 provides a better video resolution than the D3100. It can shoot movie footage at 8k/30p, while the Nikon is limited to 1080/24p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the A1 has an electronic viewfinder (9437k dots), while the D3100 has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinder in the A1 offers a wider field of view (100%) than the one in the D3100 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the A1 has a higher magnification (0.9x vs 0.53x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The following table reports on some other key feature differences and similarities of the Nikon D3100, the Sony A1, and comparable cameras.

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Core Features
    Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
(000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Nikon D3100optical n 3.0 230 fixed n 1/4000s 3.0 Y n
2.
 
Sony A19437 n 3.0 1440 tilting Y 1/8000s 10.0 n Y
3.
 
Nikon D3200optical n 3.0 921 fixed n 1/4000s 4.0 Y n
4.
 
Nikon D5100optical n 3.0 921 swivel n 1/4000s 4.0 Y n
5.
 
Nikon D7000optical Y 3.0 921 fixed n 1/8000s 6.0 Y n
6.
 
Nikon D3000optical n 3.0 230 fixed n 1/4000s 3.0 Y n
7.
 
Nikon D5000optical n 2.7 230 full-flex n 1/4000s 4.0 Y n
8.
 
Nikon D60optical n 2.5 230 fixed n 1/4000s 3.0 Y n
9.
 
Nikon D40Xoptical n 2.5 230 fixed n 1/4000s 3.0 Y n
10.
 
Nikon D40optical n 2.5 230 fixed n 1/4000s 2.5 Y n
11.
 
Sony A7S III9440 n 3.0 1440 swivel Y 1/8000s 10.0 n Y
12.
 
Sony A7R IV5760 n 3.0 1440 tilting Y 1/8000s 10.0 n Y
13.
 
Sony A7R III3686 n 3.0 1440 tilting Y 1/8000s 10.0 n Y
14.
 
Sony A93686 n 3.0 1440 tilting Y 1/8000s 20.0 n Y
15.
 
Sony A7R II2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y
16.
 
Sony NEX-5Noptional n 3.0 920 tilting Y 1/4000s 10.0 n n
17.
 
Sony NEX-C3optional n 3.0 920 tilting n 1/4000s 5.5 n n

One difference between the cameras concerns the presence of an on-board flash. The D3100 has one, while the A1 does not. While the built-in flash of the D3100 is not very powerful, it can at times be useful as a fill-in light.

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 A1 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 A1 has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

The D3100 writes its imaging data to SDXC cards, while the A1 uses CFexpress or SDXC cards. The A1 features dual card slots, which can be very useful in case a memory card fails. In contrast, the D3100 only has one slot. The A1 supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the D3100 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 Nikon D3100 and Sony A1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
    Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Nikon D3100Ymonomono--mini2.0---
2.
 
Sony A1YstereomonoYYfull3.2Y-Y
3.
 
Nikon D3200YmonomonoY-mini2.0---
4.
 
Nikon D5100YmonomonoY-mini2.0---
5.
 
Nikon D7000YmonomonoY-mini2.0---
6.
 
Nikon D3000Y-----2.0---
7.
 
Nikon D5000Ymonomono--mini2.0---
8.
 
Nikon D60Y-----2.0---
9.
 
Nikon D40XY-----2.0---
10.
 
Nikon D40Y-----2.0---
11.
 
Sony A7S IIIYstereomonoYYfull3.2Y-Y
12.
 
Sony A7R IVYstereomonoYYmicro3.1YYY
13.
 
Sony A7R IIIYstereomonoYYmicro3.1YYY
14.
 
Sony A9YstereomonoYYmicro2.0YYY
15.
 
Sony A7R IIYstereomonoYYmicro2.0YY-
16.
 
Sony NEX-5NYstereomono--mini2.0---
17.
 
Sony NEX-C3Ystereomono--mini2.0---

It is notable that the A1 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the D3100 does not provide wifi capability.

Studio photographers will appreciate that the Sony A1 (unlike the D3100) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The A1 is a recent model that features in the current product line-up of Sony. In contrast, the D3100 has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the D3100 was succeeded by the Nikon D3200. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Nikon and Sony websites.

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Review summary

So how do things add up? Which of the two cameras – the Nikon D3100 or the Sony A1 – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.

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Arguments in favor of the Nikon D3100:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Less heavy: Is lighter (by 232g or 31 percent) and hence easier to carry around.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced into a lower priced category (91 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in August 2010).

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Reasons to prefer the Sony A1:

  • More detail: Has more megapixels (49.8 vs 14.2MP), which boosts linear resolution by 88%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Better image quality: Is equipped with a larger and more technologically advanced sensor.
  • Richer colors: The sensor size advantage translates into images with better, more accurate colors.
  • More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
  • Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
  • Better video: Provides higher definition movie capture (8k/30p vs 1080/24p).
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More complete view: Has a viewfinder with a larger field of view (100% vs 95%).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.9x vs 0.53x).
  • More detailed LCD: Has a higher resolution rear screen (1440k vs 230k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (10 vs 3 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.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • Faster data transfer: Supports a more advanced USB protocol (3.2 vs 2.0).
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier 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-II standard.
  • More modern: Reflects 10 years and 5 months of technical progress since the D3100 launch.

If the count of relative strengths (bullet points above) is taken as a measure, the A1 is the clear winner of the contest (33 : 6 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. 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.

D3100 06:33 A1

How about other alternatives? Do the specifications of the Nikon D3100 and the Sony A1 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 D3100 or the A1 perform in practice. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

Expert reviews

This is why expert reviews are important. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (amateurphotographer [AP], cameralabs [CL], 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
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D31005/5+ +72/1004.5/54.5/5 Aug 2010 599 i
2.
 
Sony A15/5o93/1004.5/55/5 Jan 2021 6,499 i
3.
 
Nikon D32005/5+ +73/1004.5/54.5/5 Apr 2012 599 i
4.
 
Nikon D51005/5+ +76/1004.5/54.5/5 Apr 2011 749 i
5.
 
Nikon D70004/5..80/1004.5/54.5/5 Sep 2010 1,499 i
6.
 
Nikon D3000..+72/1004/54.5/5 Jul 2009 599 i
7.
 
Nikon D5000..+ +75/1004/54.5/5 Apr 2009 749 i
8.
 
Nikon D60..80/100+ +4/54.5/5 Jan 2008 629 i
9.
 
Nikon D40X..79/100+ +4/54/5 Mar 2007 729 i
10.
 
Nikon D40..81/100+ +o4.5/5 Nov 2006 499 i
11.
 
Sony A7S III..+ +91/1004.5/55/5 Jul 2020 3,499 i
12.
 
Sony A7R IV5/5+91/1004.5/55/5 Jul 2019 3,499 i
13.
 
Sony A7R III..+ +90/1004.5/55/5 Oct 2017 3,199 i
14.
 
Sony A95/5+ +89/1005/55/5 Apr 2017 4,499 i
15.
 
Sony A7R II5/5+ +90/1005/55/5 Jun 2015 3,199 i
16.
 
Sony NEX-5N3/5+ +79/1004.5/54.5/5 Aug 2011 699 i
17.
 
Sony NEX-C33/5+ +74/1004.5/54/5 Jun 2011 599 i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

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 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.

Nikon D3100:
Check Ebay offers
Sony A1:
Check Amazon price

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. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Nikon D3100 vs Sony A1

    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 Nikon D3100 Sony A1
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Nikon F mount lenses Sony E mount lenses
    Launch Date August 2010 January 2021
    Launch Price USD 599 USD 6,499
    Sensor Specs Nikon D3100 Sony A1
    Sensor Technology CMOS BSI-CMOS
    Sensor Format APS-C Sensor Full Frame Sensor
    Sensor Size 23.1 x 15.4 mm 35.9 x 24.0 mm
    Sensor Area 355.74 mm2 861.6 mm2
    Sensor Diagonal 27.8 mm 43.2 mm
    Crop Factor 1.5x 1.0x
    Sensor Resolution 14.2 Megapixels 49.8 Megapixels
    Image Resolution 4608 x 3072 pixels 8640 x 5760 pixels
    Pixel Pitch 5.01 μm 4.16 μm
    Pixel Density 3.98 MP/cm2 5.78 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 1080/24p Video 8k/30p Video
    ISO Setting 100 - 3,200 ISO 100 - 32,000 ISO
    ISO Boost 100 - 12,800 ISO 500 - 102,400 ISO
    Image Processor EXPEED 2 Dual BIONZ XR
    DXO Sensor Quality (score) 67 ..
    DXO Color Depth (bits) 22.5 ..
    DXO Dynamic Range (EV) 11.3 ..
    DXO Low Light (ISO) 919 ..
    Screen Specs Nikon D3100 Sony A1
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 95% 100%
    Viewfinder Magnification 0.53x 0.9x
    Viewfinder Resolution 9437k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 230k dots 1440k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Nikon D3100 Sony A1
    Focus System Phase-detect AF On-Sensor Phase-detect
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 3 shutter flaps/s 10 shutter flaps/s
    Shutter Life Expectancy100 000 actuations500 000 actuations
    Electronic Shutterno E-Shutterup to 1/32000s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium SDXC cards CFexpress or SDXC cards
    Second Storage Option Single card slot Dual card slots
    UHS card support no UHS-II
    Connectivity Specs Nikon D3100 Sony A1
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.2
    HDMI Port mini HDMI full HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support no Wifi Wifi built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Nikon D3100 Sony A1
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type EN-EL14 NP-FZ100
    Battery Life (CIPA)550 shots per charge530 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 124 x 96 x 75 mm
    (4.9 x 3.8 x 3.0 in)
    129 x 97 x 81 mm
    (5.1 x 3.8 x 3.2 in)
    Camera Weight 505 g (17.8 oz) 737 g (26.0 oz)

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    You are here Home  »  CAM-parator  »  Nikon D3100 vs Sony A1

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