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Sony A1 vs A77 II

The Sony A1 and the Sony Alpha SLT-A77 II are two digital cameras that were revealed to the public, respectively, in January 2021 and May 2014. The A1 is a mirrorless interchangeable lens camera, while the A77 II is a DSLR. The cameras are based on a full frame (A1) and an APS-C (A77 II) sensor. The A1 has a resolution of 49.8 megapixels, whereas the A77 II provides 24 MP.

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

Headline Specifications
Sony A1 versus Sony A77 II
Sony A1 Sony A77 II
Mirrorless system camera Digital single lens reflex
Sony E mount lenses Sony A mount lenses
49.8 MP, Full Frame Sensor 24 MP, APS-C Sensor
8k/30p Video 1080/60p Video
ISO 100-32,000 (500 - 102,400) ISO 100-25,600 (50 - 51,200)
Electronic viewfinder (9437k dots) Electronic viewfinder (2359k dots)
3.0 LCD, 1440k dots 3.0 LCD, 1229k dots
Tilting touchscreen Fully flexible screen (no touchscreen)
10 shutter flaps per second 12 shutter flaps per second
In-body stabilizationIn-body stabilization
Weathersealed bodyWeathersealed body
530 shots per battery charge480 shots per battery charge
129 x 97 x 81 mm, 737 g 143 x 104 x 81 mm, 647 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Sony A1 and the Sony Alpha SLT-A77 II? 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 Sony A1 and the Sony A77 II. 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 size dimensions are rounded to the nearest millimeter.

Size Sony A1 vs Sony A77 II
Compare A1 versus A77 II top
Comparison A1 or A77 II rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A77 II is notably larger (19 percent) than the Sony A1. However, the A77 II is markedly lighter (12 percent) than the A1. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

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 A1 gets 530 shots out of its NP-FZ100 battery, while the A77 II can take 480 images on a single charge of its NP-FM500H power pack. The power pack in the A1 can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Sony A1 129 mm 97 mm 81 mm 737 g 530 Y Jan 2021 6,499 i
2.
 
Sony A77 II 143 mm 104 mm 81 mm 647 g 480 Y May 2014 1,199 i
3.
 
Canon R5 138 mm 98 mm 88 mm 738 g 320 Y Jul 2020 3,899 i
4.
 
Canon G3 X 123 mm 77 mm 105 mm 733 g 300 Y Jun 2015 999 i
5.
 
Nikon D7200 136 mm 107 mm 76 mm 765 g 1110 Y Mar 2015 1,199 i
6.
 
Sony A7S III 127 mm 97 mm 81 mm 699 g 600 Y Jul 2020 3,499 i
7.
 
Sony A7C 124 mm 71 mm 60 mm 509 g 740 Y Sep 2020 1,799 i
8.
 
Sony A9 II 129 mm 96 mm 76 mm 678 g 690 Y Oct 2019 4,499 i
9.
 
Sony A7R IV 129 mm 96 mm 78 mm 665 g 670 Y Jul 2019 3,499 i
10.
 
Sony A7 III 127 mm 96 mm 74 mm 650 g 610 Y Feb 2018 1,999 i
11.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199 i
12.
 
Sony A9 127 mm 96 mm 63 mm 673 g 650 Y Apr 2017 4,499 i
13.
 
Sony A99 II 143 mm 104 mm 76 mm 849 g 490 Y Sep 2016 3,199 i
14.
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 3,199 i
15.
 
Sony A68 143 mm 104 mm 81 mm 610 g 540 n Nov 2015 699 i
16.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 1,999 i
17.
 
Sony A77 143 mm 104 mm 81 mm 732 g 470 Y Aug 2011 1,399 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 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 A77 II was launched at a markedly lower price (by 82 percent) than the A1, 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.

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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 Sony A1 features a full frame sensor and the Sony A77 II an APS-C sensor. The sensor area in the A77 II 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.

In terms of chip-set technology, the A1 uses a more advanced image processing engine (Dual BIONZ XR) than the A77 II (BIONZ X), with benefits for noise reduction, color accuracy, and processing speed.

Sony A1 and Sony A77 II sensor measures

With 49.8MP, the A1 offers a higher resolution than the A77 II (24MP), but the A1 nevertheless has larger individual pixels (pixel pitch of 4.16μm versus 3.91μm for the A77 II) due to its larger sensor. Moreover, the A1 is a much more recent model (by 6 years and 8 months) than the A77 II, and its sensor will 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 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 Sony A77 II 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 A1 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Unlike the A77 II, 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 Sony A1 has a native sensitivity range from ISO 100 to ISO 32000, which can be extended to ISO 500-102400. The corresponding ISO settings for the Sony Alpha SLT-A77 II are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 50-51200.

A1 versus A77 II MP

For many cameras, data on sensor performance has been reported by DXO Mark. 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"). 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
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Sony A1 Full Frame 49.8 8640 57608k/30p...... ..
2.
 
Sony A77 II APS-C 24.0 6000 40001080/60p...... ..
3.
 
Canon R5 Full Frame 44.8 8192 54648k/30p25.314.63042 95
4.
 
Canon G3 X 1-inch 20.0 5472 36481080/60p21.412.3521 63
5.
 
Nikon D7200 APS-C 24.0 6000 40001080/60p24.514.61333 87
6.
 
Sony A7S III Full Frame 12.0 4240 28324K/120p23.713.92520 86
7.
 
Sony A7C Full Frame 24.0 6000 40004K/30p25.014.73407 95
8.
 
Sony A9 II Full Frame 24.0 6000 40004K/30p25.014.03434 93
9.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.83344 99
10.
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.73730 96
11.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523 100
12.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.33517 92
13.
 
Sony A99 II Full Frame 42.2 7952 53044K/30p25.413.42317 92
14.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.93434 98
15.
 
Sony A68 APS-C 24.0 6000 40001080/60i24.113.5701 79
16.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.62449 90
17.
 
Sony A77 APS-C 24.0 6000 40001080/60p24.013.2801 78

Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the A1 provides a higher video resolution than the A77 II. It can shoot video footage at 8k/30p, while the A77 II is limited to 1080/60p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the A1 offers a substantially higher resolution than the one in the A77 II (9437k vs 2359k dots). The table below summarizes some of the other core capabilities of the Sony A1 and Sony A77 II in connection with corresponding information for a sample of similar 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.
 
Sony A19437 n 3.0 1440 tilting Y 1/8000s 10.0 n Y
2.
 
Sony A77 II2359 Y 3.0 1229 full-flex n 1/8000s 12.0 Y Y
3.
 
Canon R55760 Y 3.2 2100 swivel Y 1/8000s 10.0 n Y
4.
 
Canon G3 Xoptional n 3.2 1620 tilting Y 1/2000s 5.9 Y Y
5.
 
Nikon D7200optical Y 3.2 1229 fixed n 1/8000s 6.0 Y n
6.
 
Sony A7S III9440 n 3.0 1440 swivel Y 1/8000s 10.0 n Y
7.
 
Sony A7C2360 n 3.0 922 swivel Y 1/4000s 10.0 n Y
8.
 
Sony A9 II3686 n 3.0 1440 tilting Y 1/8000s 10.0 n Y
9.
 
Sony A7R IV5760 n 3.0 1440 tilting Y 1/8000s 10.0 n Y
10.
 
Sony A7 III2359 n 3.0 922 tilting Y 1/8000s 10.0 n Y
11.
 
Sony A7R III3686 n 3.0 1440 tilting Y 1/8000s 10.0 n Y
12.
 
Sony A93686 n 3.0 1440 tilting Y 1/8000s 20.0 n Y
13.
 
Sony A99 II2400 Y 3.0 1229 full-flex n 1/8000s 12.0 n Y
14.
 
Sony A7R II2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y
15.
 
Sony A681440 Y 2.7 460 tilting n 1/4000s 8.0 Y Y
16.
 
Sony A7 II2400 n 3.0 1230 tilting n 1/8000s 5.0 n Y
17.
 
Sony A772359 Y 3.0 921 full-flex n 1/8000s 12.0 Y Y

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The A1 has a touchscreen, while the A77 II has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The A77 II 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 A1 does not have a selfie-screen.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the 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 A1 writes its imaging data to CFexpress or SDXC cards, while the A77 II uses SDXC or Memory Stick PRO Duo cards. The A1 features dual card slots, which can be very useful in case a memory card fails. In contrast, the A77 II only has one slot. The A1 supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the A77 II can use UHS-I cards (up to 104 MB/s).

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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 A1 and Sony Alpha SLT-A77 II 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.
 
Sony A1YstereomonoYYmini3.2Y-Y
2.
 
Sony A77 IIYstereomonoY-mini2.0YY-
3.
 
Canon R5YmonomonoYYmicro3.2Y-Y
4.
 
Canon G3 XYstereomonoYYmini2.0YY-
5.
 
Nikon D7200YstereomonoYYmini2.0YY-
6.
 
Sony A7S IIIYstereomonoYYfull3.2Y-Y
7.
 
Sony A7CYstereomonoYYmicro3.2YYY
8.
 
Sony A9 IIYstereomonoYYmicro3.1YYY
9.
 
Sony A7R IVYstereomonoYYmicro3.1YYY
10.
 
Sony A7 IIIYstereomonoYYmicro3.1YYY
11.
 
Sony A7R IIIYstereomonoYYmicro3.1YYY
12.
 
Sony A9YstereomonoYYmicro2.0YYY
13.
 
Sony A99 IIYstereomonoYYmicro2.0YYY
14.
 
Sony A7R IIYstereomonoYYmicro2.0YY-
15.
 
Sony A68YstereomonoY-micro2.0---
16.
 
Sony A7 IIYstereomonoYYmicro2.0YY-
17.
 
Sony A77YstereomonoY-mini2.0---

It is notable that the A1 has a headphone jack, which is not present on the A77 II This port makes it possible to attach external headphones and monitor the quality of sound during the recording process.

Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.

Both the A1 and the A77 II are recent models that are part of the current product line-up. The A77 II replaced the earlier Sony A77, while the A1 does not have a direct predecessor. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Sony website.

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Review summary

So what conclusions can be drawn? Which of the two cameras – the Sony A1 or the Sony A77 II – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.


Advantages of the Sony A1:

  • More detail: Offers more megapixels (49.8 vs 24MP) with a 44% higher linear resolution.
  • 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: Features a larger and more technologically advanced imaging 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 jpgs: Has a more modern image processing engine (Dual BIONZ XR vs BIONZ X).
  • Better video: Provides higher definition movie capture (8k/30p vs 1080/60p).
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • More detailed viewfinder: Has higher resolution electronic viewfinder (9437k vs 2359k dots).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.9x vs 0.73x).
  • More detailed LCD: Has a higher resolution rear screen (1440k vs 1229k dots).
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • More compact: Is smaller (129x97mm vs 143x104mm) and thus needs less room in the bag.
  • Longer lasting: Can take more shots (530 versus 480) on a single battery charge.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
  • Faster data transfer: Supports a more advanced USB protocol (3.2 vs 2.0).
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
  • More modern: Reflects 6 years and 8 months of technical progress since the A77 II launch.


Reasons to prefer the Sony Alpha SLT-A77 II:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (12 vs 10 flaps/sec) to capture the decisive moment.
  • Less heavy: Has a lower weight (by 90g or 12 percent) and is thus easier to take along.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • More affordable: Was introduced into a lower priced category (82 percent cheaper at launch).
  • More heavily discounted: Has been around for much longer (launched in May 2014).

If the count of relative strengths (bullet points above) is taken as a measure, the A1 is the clear winner of the match-up (26 : 10 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.

A1 26:10 A77 II

How about other alternatives? Do the specifications of the Sony A1 and the Sony A77 II place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best DSLR Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains incomplete and does no justice, for example, to the way the A1 or the A77 II 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], 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.
 
Sony A15/5o93/1004.5/55/5 Jan 2021 6,499 i
2.
 
Sony A77 II4/5..80/1004.5/55/5 May 2014 1,199 i
3.
 
Canon R54.5/5..91/1004.5/54.5/5 Jul 2020 3,899 i
4.
 
Canon G3 X3.5/5+..4.5/54/5 Jun 2015 999 i
5.
 
Nikon D72004/5+ +84/1004.5/54.5/5 Mar 2015 1,199 i
6.
 
Sony A7S III..+ +91/1004.5/55/5 Jul 2020 3,499 i
7.
 
Sony A7C3.5/5..86/1004/54/5 Sep 2020 1,799 i
8.
 
Sony A9 II....90/1005/55/5 Oct 2019 4,499 i
9.
 
Sony A7R IV5/5+91/1004.5/55/5 Jul 2019 3,499 i
10.
 
Sony A7 III..+ +89/1005/55/5 Feb 2018 1,999 i
11.
 
Sony A7R III..+ +90/1004.5/55/5 Oct 2017 3,199 i
12.
 
Sony A95/5+ +89/1005/55/5 Apr 2017 4,499 i
13.
 
Sony A99 II....85/1004.5/54.5/5 Sep 2016 3,199 i
14.
 
Sony A7R II5/5+ +90/1005/55/5 Jun 2015 3,199 i
15.
 
Sony A683/5....4/54/5 Nov 2015 699 i
16.
 
Sony A7 II5/5+82/1004.5/55/5 Nov 2014 1,999 i
17.
 
Sony A775/591/10081/100..5/5 Aug 2011 1,399 i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.

Sony A1:
Check Amazon price
Sony A77 II:
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. 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 A1 vs Sony A77 II

    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 A1 Sony A77 II
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Sony E mount lenses Sony A mount lenses
    Launch Date January 2021 May 2014
    Launch Price USD 6,499 USD 1,199
    Sensor Specs Sony A1 Sony A77 II
    Sensor Technology BSI-CMOS CMOS
    Sensor Format Full Frame Sensor APS-C Sensor
    Sensor Size 35.9 x 24.0 mm 23.5 x 15.6 mm
    Sensor Area 861.6 mm2 366.6 mm2
    Sensor Diagonal 43.2 mm 28.2 mm
    Crop Factor 1.0x 1.5x
    Sensor Resolution 49.8 Megapixels 24 Megapixels
    Image Resolution 8640 x 5760 pixels 6000 x 4000 pixels
    Pixel Pitch 4.16 μm 3.91 μm
    Pixel Density 5.78 MP/cm2 6.55 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 8k/30p Video 1080/60p Video
    ISO Setting 100 - 32,000 ISO 100 - 25,600 ISO
    ISO Boost 500 - 102,400 ISO 50 - 51,200 ISO
    Image Processor Dual BIONZ XR BIONZ X
    Screen Specs Sony A1 Sony A77 II
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.9x 0.73x
    Viewfinder Resolution 9437k dots 2359k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1440k dots 1229k dots
    LCD Attachment Tilting screen Fully flexible screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Sony A1 Sony A77 II
    Focus System On-Sensor Phase-detect Phase-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/8000s
    Continuous Shooting 10 shutter flaps/s 12 shutter flaps/s
    Shutter Life Expectancy500 000 actuations150 000 actuations
    Electronic Shutterup to 1/32000sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash no On-Board Flash Build-in Flash
    Storage Medium CFexpress or SDXC cards MS or SDXC cards
    Second Storage Option Dual card slots Single card slot
    UHS card support UHS-II UHS-I
    Connectivity Specs Sony A1 Sony A77 II
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket PC Sync socket
    USB Connector USB 3.2 USB 2.0
    HDMI Port mini HDMI mini HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket Headphone port no Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Sony A1 Sony A77 II
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type NP-FZ100 NP-FM500H
    Battery Life (CIPA)530 shots per charge480 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 129 x 97 x 81 mm
    (5.1 x 3.8 x 3.2 in)
    143 x 104 x 81 mm
    (5.6 x 4.1 x 3.2 in)
    Camera Weight 737 g (26.0 oz) 647 g (22.8 oz)

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