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Sony A77 vs Zeiss ZX1

The Sony Alpha SLT-A77 and the Zeiss ZX1 are two enthusiast cameras that were revealed to the public, respectively, in August 2011 and September 2018. The A77 is a DSLR, while the ZX1 is a fixed lens compact. The cameras are based on an APS-C (A77) and a full frame (ZX1) sensor. The Sony has a resolution of 24 megapixels, whereas the Zeiss provides 37.4 MP.

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

Headline Specifications
Sony A77
versus
Zeiss ZX1
Sony A77   Zeiss ZX1
Digital single lens reflex Fixed lens compact camera
Sony A mount lenses 35mm f/2.8
24 MP – APS-C sensor 37.4 MP – Full Frame sensor
1080/60p Video 4K/30p Video
ISO 100-16,000 (50 - 25,600) ISO 80-51,200
Electronic viewfinder (2359k dots) Electronic viewfinder (6221k dots)
3.0" LCD – 921k dots 4.3" LCD – 2765k dots
Fully flexible screen (no touchscreen) Fixed touchscreen
12 shutter flaps per second 3 shutter flaps per second
In-body stabilizationno shake reduction
Weathersealed bodynot weather sealed
470 shots per battery charge250 shots per battery charge
143 x 104 x 81 mm, 732 g 142 x 93 x 46 mm, 800 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Sony Alpha SLT-A77 and the Zeiss ZX1? 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 A77 and the Zeiss ZX1 are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All size dimensions are rounded to the nearest millimeter.

Size Sony A77 vs Zeiss ZX1
Compare A77 versus ZX1 top
Comparison A77 or ZX1 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Zeiss ZX1 is notably smaller (11 percent) than the Sony A77. It is worth mentioning in this context that the A77 is splash and dust resistant, while the ZX1 does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the ZX1 has a lens built in, whereas the A77 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 A77 gets 470 shots out of its Sony NP-FM500H battery, while the ZX1 can take 250 images on a single charge of its Zeiss DD-PS1A power pack.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons 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 A77 143 mm 104 mm 81 mm 732 g 470 Y Aug 2011 1,399ebay.com
2.
 
Zeiss ZX1 142 mm 93 mm 46 mm 800 g 250 n Sep 2018 5,999ebay.com
3.
 
Canon 6D 145 mm 111 mm 71 mm 770 g 1090 Y Sep 2012 2,099ebay.com
4.
 
Leica Q2 130 mm 80 mm 92 mm 718 g 370 Y Mar 2019 4,995 amazon.com
5.
 
Leica M10 139 mm 80 mm 39 mm 660 g 210 Y Jan 2017 6,595ebay.com
6.
 
Leica Q Typ 116 130 mm 80 mm 93 mm 640 g 300 n Jun 2015 4,249ebay.com
7.
 
Panasonic GH5 139 mm 98 mm 87 mm 725 g 410 Y Jan 2017 1,999ebay.com
8.
 
Panasonic FZ1000 137 mm 99 mm 131 mm 831 g 360 n Jun 2014 899ebay.com
9.
 
Pentax K-3 131 mm 100 mm 77 mm 800 g 560 Y Oct 2013 1,299ebay.com
10.
 
Sony A6600 120 mm 67 mm 69 mm 503 g 810 Y Aug 2019 1,399 amazon.com
11.
 
Sony A9 127 mm 96 mm 63 mm 673 g 650 Y Apr 2017 4,499ebay.com
12.
 
Sony A6500 120 mm 67 mm 53 mm 453 g 350 Y Oct 2016 1,399ebay.com
13.
 
Sony RX1R II 113 mm 65 mm 72 mm 507 g 220 n Oct 2015 3,299ebay.com
14.
 
Sony A68 143 mm 104 mm 81 mm 610 g 540 n Nov 2015 699ebay.com
15.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 1,999ebay.com
16.
 
Sony A77 II 143 mm 104 mm 81 mm 647 g 480 Y May 2014 1,199ebay.com
17.
 
Sony A99 147 mm 111 mm 78 mm 812 g 500 Y Sep 2012 2,799ebay.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. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down.

Sensor comparison

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixels in a sensor of the same technological generation. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Sony A77 features an APS-C sensor and the Zeiss ZX1 a full frame sensor. The sensor area in the ZX1 is 135 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.

Sony A77 and Zeiss ZX1 sensor measures

With 37.4MP, the ZX1 offers a higher resolution than the A77 (24MP), but the ZX1 nevertheless has larger individual pixels (pixel pitch of 4.81μm versus 3.91μm for the A77) due to its larger sensor. Moreover, the ZX1 is a much more recent model (by 7 years and 1 month) than the A77, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units.

The resolution advantage of the Zeiss ZX1 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the ZX1 for good quality output (200 dots per inch) amounts to 37.4 x 25 inches or 95.1 x 63.4 cm, for very good quality (250 dpi) 30 x 20 inches or 76.1 x 50.7 cm, and for excellent quality (300 dpi) 25 x 16.6 inches or 63.4 x 42.3 cm. The corresponding values for the Sony A77 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 Sony Alpha SLT-A77 has a native sensitivity range from ISO 100 to ISO 16000, which can be extended to ISO 50-25600. The corresponding ISO settings for the Zeiss ZX1 are ISO 80 to ISO 51200 (no boost).

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

A77 versus ZX1 MP

For many cameras, data on sensor performance has been reported by DXO Mark. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. 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 A77 APS-C 24.0 6000 40001080/60p24.013.280178
2.
 
Zeiss ZX1 Full Frame 37.4 7488 49924K/30p25.214.1275994
3.
 
Canon 6D Full Frame 20.0 5472 36481080/30p23.812.1234082
4.
 
Leica Q2 Full Frame 46.7 8368 55844K/30p26.413.5249196
5.
 
Leica M10 Full Frame 23.8 5952 3992none24.413.2213386
6.
 
Leica Q Typ 116 Full Frame 24.0 6000 40001080/60p24.312.7222185
7.
 
Panasonic GH5 Four Thirds 20.2 5184 38884K/60p23.913.080777
8.
 
Panasonic FZ1000 1-inch 20.0 5472 36484K/30p22.111.751764
9.
 
Pentax K-3 APS-C 24.1 6016 40001080/60i23.713.4121680
10.
 
Sony A6600 APS-C 24.0 6000 40004K/30p23.813.4149782
11.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792
12.
 
Sony A6500 APS-C 24.0 6000 40004K/30p24.513.7140585
13.
 
Sony RX1R II Full Frame 42.2 7952 53041080/60p25.813.9320497
14.
 
Sony A68 APS-C 24.0 6000 40001080/60i24.113.570179
15.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990
16.
 
Sony A77 II APS-C 24.0 6000 40001080/60p24.413.4101382
17.
 
Sony A99 Full Frame 24.0 6000 40001080/60p25.014.0155589
Note: DXO values in italics represent estimates based on sensor size and age.
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Many modern cameras cannot only take still pictures, but also record videos. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the ZX1 provides a better video resolution than the A77. It can shoot movie footage at 4K/30p, while the Sony is limited to 1080/60p.

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. The two cameras under review are similar with respect to both having an electronic viewfinder. However, the one in the ZX1 offers a substantially higher resolution than the one in the A77 (6221k vs 2359k dots). The adjacent table lists some of the other core features of the Sony A77 and Zeiss ZX1 along with similar information for a selection of comparators.

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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 A772359 Y3.0 / 921 full-flex n 1/8000s 12.0/s Y Y
2.
 
Zeiss ZX16221 n4.3 / 2765 fixed Y 1/1000s 3.0/s n n
3.
 
Canon 6Doptical Y3.0 / 1040 fixed n 1/4000s 4.5/s n n
4.
 
Leica Q23680 n3.0 / 1040 fixed Y 1/2000s 10.0/s n Y
5.
 
Leica M10optical n3.0 / 1037 fixed n 1/4000s 5.0/s n n
6.
 
Leica Q Typ 1163680 n3.0 / 1040 fixed Y 1/2000s 10.0/s n Y
7.
 
Panasonic GH53680 n3.2 / 1620 swivel Y 1/8000s 12.0/s n Y
8.
 
Panasonic FZ10002359 n3.0 / 921 swivel n 1/4000s 12.0/s Y Y
9.
 
Pentax K-3optical Y3.2 / 1037 fixed n 1/8000s 8.3/s Y Y
10.
 
Sony A66002359 n3.0 / 922 tilting Y 1/4000s 11.0/s n Y
11.
 
Sony A93686 n3.0 / 1440 tilting Y 1/8000s 20.0/s n Y
12.
 
Sony A65002359 n3.0 / 922 tilting Y 1/4000s 11.0/s Y Y
13.
 
Sony RX1R II2360 n3.0 / 1229 tilting n 1/4000s 5.0/s n n
14.
 
Sony A681440 Y2.7 / 460 tilting n 1/4000s 8.0/s Y Y
15.
 
Sony A7 II2400 n3.0 / 1230 tilting n 1/8000s 5.0/s n Y
16.
 
Sony A77 II2359 Y3.0 / 1229 full-flex n 1/8000s 12.0/s Y Y
17.
 
Sony A992359 Y3.0 / 1229 full-flex n 1/8000s 6.0/s n Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One difference between the cameras concerns the presence of an on-board flash. The A77 has one, while the ZX1 does not. While the built-in flash of the A77 is not very powerful, it can at times be useful as a fill-in light.

The A77 has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the ZX1 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 ZX1 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 A77 writes its imaging data to SDXC or Memory Stick PRO Duo cards, while the ZX1 uses an internal SSD.

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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 SLT-A77 and Zeiss ZX1 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 A77Ystereo / monoY-mini2.0---
2.
 
Zeiss ZX1Ystereo / mono---3.1YYY
3.
 
Canon 6DYmono / monoY-mini2.0Y--
4.
 
Leica Q2Ystereo / mono----Y-Y
5.
 
Leica M10Y- / -----Y--
6.
 
Leica Q Typ 116Ystereo / mono--micro2.0YY-
7.
 
Panasonic GH5Ystereo / monoYYfull3.1Y-Y
8.
 
Panasonic FZ1000Ystereo / monoY-micro2.0YY-
9.
 
Pentax K-3Ymono / monoYYmini3.0---
10.
 
Sony A6600Ystereo / monoYYYES2.0YYY
11.
 
Sony A9Ystereo / monoYYmicro2.0YYY
12.
 
Sony A6500Ystereo / monoY-micro2.0YY-
13.
 
Sony RX1R IIYstereo / monoY-micro2.0YY-
14.
 
Sony A68Ystereo / monoY-micro2.0---
15.
 
Sony A7 IIYstereo / monoYYmicro2.0YY-
16.
 
Sony A77 IIYstereo / monoY-mini2.0YY-
17.
 
Sony A99Ystereo / monoYYmini2.0---
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It is notable that the A77 has a microphone port, which is missing on the ZX1. 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 A77 (unlike the ZX1) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Travel and landscape photographers will find it useful that the A77 has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

Both the A77 and the ZX1 have been discontinued, but can regularly be found used on ebay. The A77 was replaced by the Sony A77 II, while the ZX1 does not have a direct successor. Further information on the features and operation of the A77 and ZX1 can be found, respectively, in the Sony A77 Manual (free pdf) or the online Zeiss ZX1 Manual.

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Review summary

So how do things add up? Which of the two cameras – the Sony A77 or the Zeiss ZX1 – 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.

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Advantages of the Sony Alpha SLT-A77:

  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • Easier setting verification: Features an LCD display on top to control 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 shutter: Has higher mechanical shutter speed (1/8000s vs 1/1000s) to freeze action.
  • Faster burst: Shoots at higher frequency (12 vs 3 flaps/sec) to capture the decisive moment.
  • More flexible: Can take a variety of interchangeable lenses, including specialty optics.
  • Longer lasting: Can take more shots (470 versus 250) 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 fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • Easier geotagging: Features an internal GPS sensor to log localization data.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • More heavily discounted: Has been available for much longer (launched in August 2011).

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Arguments in favor of the Zeiss ZX1:

  • More detail: Has more megapixels (37.4 vs 24MP), which boosts linear resolution by 25%.
  • 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 (4K/30p vs 1080/60p).
  • More detailed viewfinder: Has higher resolution electronic viewfinder (6221k vs 2359k dots).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.74x vs 0.73x).
  • Larger screen: Has a bigger rear LCD (4.3" vs 3.0") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (2765k vs 921k dots).
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Ready to shoot: Comes with an integrated lens, while the A77 requires a separate lens.
  • More compact: Is smaller (142x93mm vs 143x104mm) and will fit more readily into a bag.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
  • 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.
  • More prestigious: Has the Zeiss luxury appeal, which ensures a high resale value.
  • More modern: Reflects 7 years and 1 month of technical progress since the A77 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the ZX1 is the clear winner of the contest (20 : 14 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 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.

A77 14:20 ZX1

How about other alternatives? Do the specifications of the Sony A77 and the Zeiss ZX1 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Prime Lens Compact 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 says little about, for example, the shooting experience and imaging performance of the A77 and the ZX1 in practical situations. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.

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], 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 A775/591/100..81/100..5/5 Aug 2011 1,399ebay.com
2.
 
Zeiss ZX13/5....83/1004/54/5 Sep 2018 5,999ebay.com
3.
 
Canon 6D5/5+ +..83/1004.5/54.5/5 Sep 2012 2,099ebay.com
4.
 
Leica Q2....4.5/584/1004.5/54/5 Mar 2019 4,995 amazon.com
5.
 
Leica M104.5/5......4/54.5/5 Jan 2017 6,595ebay.com
6.
 
Leica Q Typ 1165/5....80/1004.5/54.5/5 Jun 2015 4,249ebay.com
7.
 
Panasonic GH54.5/5+ +..85/1004.5/55/5 Jan 2017 1,999ebay.com
8.
 
Panasonic FZ10004/5+ +..82/1004.5/54.5/5 Jun 2014 899ebay.com
9.
 
Pentax K-34/5....83/1005/55/5 Oct 2013 1,299ebay.com
10.
 
Sony A66004/5+4/583/1004.5/54/5 Aug 2019 1,399 amazon.com
11.
 
Sony A95/5+ +4.8/589/1005/55/5 Apr 2017 4,499ebay.com
12.
 
Sony A65005/5+ +3.5/585/1004.5/54.5/5 Oct 2016 1,399ebay.com
13.
 
Sony RX1R II5/5....82/100..4.5/5 Oct 2015 3,299ebay.com
14.
 
Sony A683/5......4/54/5 Nov 2015 699ebay.com
15.
 
Sony A7 II5/5+4/582/1004.5/55/5 Nov 2014 1,999ebay.com
16.
 
Sony A77 II4/5....80/1004.5/55/5 May 2014 1,199ebay.com
17.
 
Sony A995/5....84/1004.5/54.5/5 Sep 2012 2,799ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. 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, please note that some of the review sites have changed their methodology and reporting over time.

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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 A77 vs Zeiss ZX1

    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 A77 Zeiss ZX1
    Camera Type Digital single lens reflex Fixed lens compact camera
    Camera Lens Sony A mount lenses 35mm f/2.8
    Launch Date August 2011 September 2018
    Launch Price USD 1,399 USD 5,999
    Sensor Specs Sony A77 Zeiss ZX1
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor Full Frame Sensor
    Sensor Size 23.5 x 15.6 mm 36.0 x 24.0 mm
    Sensor Area 366.6 mm2 864 mm2
    Sensor Diagonal 28.2 mm 43.3 mm
    Crop Factor 1.5x 1.0x
    Sensor Resolution 24 Megapixels 37.4 Megapixels
    Image Resolution 6000 x 4000 pixels 7488 x 4992 pixels
    Pixel Pitch 3.91 μm 4.81 μm
    Pixel Density 6.55 MP/cm2 4.33 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/60p Video 4K/30p Video
    ISO Setting 100 - 16,000 ISO 80 - 51,200 ISO
    ISO Boost 50 - 25,600 ISO no Enhancement
    DXO Sensor Quality (score) 78 ..
    DXO Color Depth (bits) 24.0 ..
    DXO Dynamic Range (EV) 13.2 ..
    DXO Low Light (ISO) 801 ..
    Screen Specs Sony A77 Zeiss ZX1
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.73x 0.74x
    Viewfinder Resolution 2359k dots 6221k dots
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 4.3inch
    LCD Resolution 921k dots 2765k dots
    LCD Attachment Fully flexible screen Fixed screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Sony A77 Zeiss ZX1
    Focus System Phase-detect AF Contrast-detect AF
    Manual Focusing AidFocus Peakingno Peaking Feature
    Continuous Shooting 12 shutter flaps/s 3 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/8000s
    Image StabilizationIn-body stabilizationno handshake reduction
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium MS or SDXC cards SSD cards
    Single or Dual Card Slots Single card slot Single SSD
    Connectivity Specs Sony A77 Zeiss ZX1
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 2.0 USB 3.1
    HDMI Port mini HDMI no HDMI
    Microphone Port External MIC port no MIC socket
    Wifi Support no Wifi Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Geotagging GPS built-in no internal GPS
    Body Specs Sony A77 Zeiss ZX1
    Environmental SealingWeathersealed bodynot weather sealed
    Battery Type Sony NP-FM500H Zeiss DD-PS1A
    Battery Life (CIPA)470 shots per charge250 shots per charge
    Body Dimensions 143 x 104 x 81 mm
    (5.6 x 4.1 x 3.2 in)
    142 x 93 x 46 mm
    (5.6 x 3.7 x 1.8 in)
    Camera Weight 732 g (25.8 oz) 800 g (28.2 oz)
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    Check A77 offers at
    ebay.com
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    Check ZX1 offers at
    ebay.com

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