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Pentax MX-1 vs Sony A77

The Pentax MX-1 and the Sony Alpha SLT-A77 are two digital cameras that were revealed to the public, respectively, in January 2013 and August 2011. The MX-1 is a fixed lens compact, while the A77 is a DSLR. The cameras are based on a 1/1.7-inch (MX-1) and an APS-C (A77) sensor. The Pentax has a resolution of 12 megapixels, whereas the Sony provides 24 MP.

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

Headline Specifications
Pentax MX-1
versus
Sony A77
Pentax MX-1   Sony A77
Fixed lens compact camera Digital single lens reflex
28-112mm f/1.8-2.5 Sony A mount lenses
12 MP, 1/1.7" Sensor 24 MP, APS-C Sensor
1080/30p Video 1080/60p Video
ISO 100-12,800 ISO 100-16,000 (50 - 25,600)
No viewfinder, LCD framing Electronic viewfinder (2359k dots)
3.0 LCD, 920k dots 3.0 LCD, 921k dots
Tilting screen (no touchscreen) Fully flexible screen (no touchscreen)
1 shutter flaps per second 12 shutter flaps per second
In-body stabilizationIn-body stabilization
not weather sealedWeathersealed body
290 shots per battery charge470 shots per battery charge
122 x 61 x 51 mm, 391 g 143 x 104 x 81 mm, 732 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Pentax MX-1 and the Sony Alpha SLT-A77? 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

An illustration of the physical size and weight of the Pentax MX-1 and the Sony A77 is provided 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.

Size Pentax MX-1 vs Sony A77
Compare MX-1 versus A77 top
Comparison MX-1 or A77 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A77 is considerably larger (100 percent) than the Pentax MX-1. It is noteworthy in this context that the A77 is splash and dust-proof, while the MX-1 does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the MX-1 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.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Pentax MX-1 122 mm 61 mm 51 mm 391 g 290 n Jan 2013 499i
2.
 
Sony A77 143 mm 104 mm 81 mm 732 g 470 Y Aug 2011 1,399i
3.
 
Canon G16 109 mm 76 mm 40 mm 356 g 360 n Aug 2013 549 i
4.
 
Canon S120 100 mm 59 mm 29 mm 217 g 230 n Aug 2013 449i
5.
 
Canon G15 107 mm 76 mm 40 mm 352 g 350 n Sep 2012 499i
6.
 
Fujifilm X30 119 mm 72 mm 60 mm 423 g 470 n Aug 2014 599 i
7.
 
Fujifilm X20 117 mm 70 mm 57 mm 353 g 270 n Jan 2013 599i
8.
 
Fujifilm X10 117 mm 70 mm 57 mm 350 g 270 n Sep 2011 599i
9.
 
Nikon P7800 119 mm 78 mm 50 mm 399 g 350 n Sep 2013 549i
10.
 
Olympus Stylus 1 116 mm 87 mm 57 mm 402 g 410 n Oct 2013 699i
11.
 
Olympus XZ-2 113 mm 65 mm 48 mm 346 g 340 n Sep 2012 599i
12.
 
Panasonic LF1 103 mm 62 mm 28 mm 192 g 250 n Apr 2013 499 i
13.
 
Pentax K-3 131 mm 100 mm 77 mm 800 g 560 Y Oct 2013 1,299i
14.
 
Sony A6500 120 mm 67 mm 53 mm 453 g 350 Y Oct 2016 1,399i
15.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 1,999i
16.
 
Sony A77 II 143 mm 104 mm 81 mm 647 g 480 Y May 2014 1,199 i
17.
 
Sony A99 147 mm 111 mm 78 mm 812 g 500 Y Sep 2012 2,799i
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 manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The MX-1 was launched at a lower price than the A77, despite having a lens built in. 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. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels in a sensor of the same technological generation. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its 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 Pentax MX-1 features a 1/1.7-inch sensor and the Sony A77 an APS-C sensor. The sensor area in the A77 is 753 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 4.5 and 1.5. The sensor in the MX-1 has a native 4:3 aspect ratio, while the one in the A77 offers a 3:2 aspect.

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors.

Pentax MX-1 and Sony A77 sensor measures

With 24MP, the A77 offers a higher resolution than the MX-1 (12MP), but the A77 nevertheless has larger individual pixels (pixel pitch of 3.91μm versus 1.89μm for the MX-1) due to its larger sensor. However, the MX-1 is a somewhat more recent model (by 1 year and 4 months) than the A77, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units.

The resolution advantage of the Sony A77 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A77 for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Pentax MX-1 are 20 x 15 inches or 50.8 x 38.1 cm for good quality, 16 x 12 inches or 40.6 x 30.5 cm for very good quality, and 13.3 x 10 inches or 33.9 x 25.4 cm for excellent quality prints.

The Pentax MX-1 has a native sensitivity range from ISO 100 to ISO 12800. The corresponding ISO settings for the Sony Alpha SLT-A77 are ISO 100 to ISO 16000, with the possibility to increase the ISO range to 50-25600.

MX-1 versus A77 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. Of the two cameras under consideration, the A77 offers substantially better image quality than the MX-1 (overall score 29 points higher). The advantage is based on 3.6 bits higher color depth, 1.9 EV in additional dynamic range, and 1.9 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
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Pentax MX-1 1/1.7 12.0 4000 30001080/30p20.411.320849
2.
 
Sony A77 APS-C 24.0 6000 40001080/60p24.013.280178
3.
 
Canon G16 1/1.7 12.0 4000 30001080/60p21.011.723054
4.
 
Canon S120 1/1.7 12.0 4000 30001080/60p21.311.924656
5.
 
Canon G15 1/1.7 12.0 4000 30001080/24p19.911.516546
6.
 
Fujifilm X30 2/3 12.0 4000 30001080/60p........
7.
 
Fujifilm X20 2/3 12.0 4000 30001080/60p........
8.
 
Fujifilm X10 2/3 12.0 4000 30001080/30p20.511.324550
9.
 
Nikon P7800 1/1.7 12.0 4000 30001080/30p21.211.720054
10.
 
Olympus Stylus 1 1/1.7 11.8 3968 29761080/30p20.711.617951
11.
 
Olympus XZ-2 1/1.7 11.8 3968 29761080/30p20.411.321649
12.
 
Panasonic LF1 1/1.7 12.0 4000 30001080/60i20.811.621152
13.
 
Pentax K-3 APS-C 24.1 6016 40001080/60i23.713.4121680
14.
 
Sony A6500 APS-C 24.0 6000 40004K/30p24.513.7140585
15.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990
16.
 
Sony A77 II APS-C 24.0 6000 40001080/60p........
17.
 
Sony A99 Full Frame 24.0 6000 40001080/60p25.014.0155589

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 A77 provides a faster frame rate than the MX-1. It can shoot movie footage at 1080/60p, while the Pentax is limited to 1080/30p.

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the A77 has an electronic viewfinder (2359k dots), which can be very helpful when shooting in bright sunlight. In contrast, the MX-1 relies on live view and the rear LCD for framing. The table below summarizes some of the other core capabilities of the Pentax MX-1 and Sony A77 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
Specifications
(inch/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.
 
Pentax MX-1none n3.0 / 920 tilting n 1/8000s 1.0 Y Y
2.
 
Sony A772359 Y3.0 / 921 full-flex n 1/8000s 12.0 Y Y
3.
 
Canon G16optical n3.0 / 922 fixed n 1/4000s 2.2 Y Y
4.
 
Canon S120none n3.0 / 922 fixed Y 1/2000s 12.1 Y Y
5.
 
Canon G15optical n3.0 / 922 fixed n 1/4000s 2.1 Y Y
6.
 
Fujifilm X302360 n3.0 / 920 tilting n 1/4000s 12.0 Y Y
7.
 
Fujifilm X20optical n2.8 / 460 fixed n 1/4000s 12.0 Y Y
8.
 
Fujifilm X10optical n2.8 / 460 fixed n 1/4000s 10.0 Y Y
9.
 
Nikon P7800921 n3.0 / 921 swivel n 1/4000s 8.0 Y Y
10.
 
Olympus Stylus 11440 n3.0 / 1040 tilting Y 1/2000s 7.0 Y Y
11.
 
Olympus XZ-2optional n3.0 / 920 tilting Y 1/2000s 5.0 Y Y
12.
 
Panasonic LF1200 n3.0 / 920 fixed n 1/4000s 10.0 Y Y
13.
 
Pentax K-3optical Y3.2 / 1037 fixed n 1/8000s 8.3 Y Y
14.
 
Sony A65002359 n3.0 / 922 tilting Y 1/4000s 11.0 Y Y
15.
 
Sony A7 II2400 n3.0 / 1230 tilting n 1/8000s 5.0 n Y
16.
 
Sony A77 II2359 Y3.0 / 1229 full-flex n 1/8000s 12.0 Y Y
17.
 
Sony A992359 Y3.0 / 1229 full-flex n 1/8000s 6.0 n Y

One feature that is present on the A77, but is missing on the MX-1 is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.

The A77 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 MX-1 does not have a selfie-screen.

The MX-1 writes its imaging data to SDXC cards, while the A77 uses SDXC or Memory Stick PRO Duo cards. The A77 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the MX-1 cannot take advantage of Ultra High Speed SD cards.

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 Pentax MX-1 and Sony Alpha SLT-A77 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
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Pentax MX-1-stereo / mono--mini2.0---
2.
 
Sony A77Ystereo / monoY-mini2.0---
3.
 
Canon G16Ystereo / mono--mini2.0Y--
4.
 
Canon S120-stereo / mono--mini2.0Y--
5.
 
Canon G15Ystereo / mono--mini2.0---
6.
 
Fujifilm X30Ystereo / mono--micro2.0Y--
7.
 
Fujifilm X20Ystereo / mono--micro2.0---
8.
 
Fujifilm X10Ystereo / mono--mini2.0---
9.
 
Nikon P7800Ystereo / monoY-mini2.0---
10.
 
Olympus Stylus 1Ystereo / mono--micro2.0Y--
11.
 
Olympus XZ-2Ystereo / mono--mini2.0---
12.
 
Panasonic LF1-stereo / mono--mini2.0YY-
13.
 
Pentax K-3Ymono / monoYYmini3.0---
14.
 
Sony A6500Ystereo / monoY-micro2.0YY-
15.
 
Sony A7 IIYstereo / monoYYmicro2.0YY-
16.
 
Sony A77 IIYstereo / monoY-mini2.0YY-
17.
 
Sony A99Ystereo / monoYYmini2.0---

It is notable that the A77 has a microphone port, which can help to improve the quality of audio recordings by attaching an external microphone. The MX-1 does not feature such a mic input.

Studio photographers will appreciate that the Sony A77 (unlike the MX-1) 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 MX-1 and the A77 have been discontinued, but can regularly be found used on eBay. The A77 was replaced by the Sony A77 II, while the MX-1 does not have a direct successor. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Pentax and Sony websites.

Review summary

So how do things add up? Is there a clear favorite between the Pentax MX-1 and the Sony A77? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

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Advantages of the Pentax MX-1:

  • Ready to shoot: Comes with a built-in lens, while the A77 requires a separate lens.
  • More compact: Is smaller (122x61mm vs 143x104mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the A77).
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More modern: Is somewhat more recent (announced 1 year and 4 months after the A77).

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Reasons to prefer the Sony Alpha SLT-A77:

  • More detail: Has more megapixels (24 vs 12MP), which boosts linear resolution by 44%.
  • Better image quality: Scores substantially higher (29 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (3.6 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (1.9 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (1.9 stops ISO advantage).
  • Better video: Provides higher movie framerates (1080/60p versus 1080/30p).
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • Easier framing: Has an electronic viewfinder for image composition and settings control.
  • 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 1 flaps/sec) to capture the decisive moment.
  • More flexible: Makes it possible to change lenses and thus to use specialty optics.
  • Longer lasting: Gets more shots (470 versus 290) out of a single battery charge.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • 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.
  • Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
  • More heavily discounted: Has been on the market for longer (launched in August 2011).

If the count of relative strengths (bullet points above) is taken as a measure, the A77 is the clear winner of the contest (20 : 5 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.

MX-1 05:20 A77

How about other alternatives? Do the specifications of the Pentax MX-1 and the Sony A77 place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best DSLR Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it says little about, for example, the shooting experience and imaging performance of the MX-1 and the A77 in practical situations. 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 where reviews by experts come in. 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
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Pentax MX-13/5....74/1004/54/5 Jan 2013 499i
2.
 
Sony A775/591/100..81/100..5/5 Aug 2011 1,399i
3.
 
Canon G164/5+....4.5/54.5/5 Aug 2013 549 i
4.
 
Canon S120..+ +....4.5/54.5/5 Aug 2013 449i
5.
 
Canon G154/5+..76/1004.5/54.5/5 Sep 2012 499i
6.
 
Fujifilm X304/5....76/1004.5/54.5/5 Aug 2014 599 i
7.
 
Fujifilm X204/5+ +..77/1004.5/55/5 Jan 2013 599i
8.
 
Fujifilm X10......76/1004/54.5/5 Sep 2011 599i
9.
 
Nikon P78003/5......4/54.5/5 Sep 2013 549i
10.
 
Olympus Stylus 1..+ +....4.5/54.5/5 Oct 2013 699i
11.
 
Olympus XZ-24/5+....4.5/54.5/5 Sep 2012 599i
12.
 
Panasonic LF13/5+....4/54.5/5 Apr 2013 499 i
13.
 
Pentax K-34/5....83/1005/55/5 Oct 2013 1,299i
14.
 
Sony A65005/5+ +3.5/585/1004.5/54.5/5 Oct 2016 1,399i
15.
 
Sony A7 II5/5+4/582/1004.5/55/5 Nov 2014 1,999i
16.
 
Sony A77 II4/5....80/1004.5/55/5 May 2014 1,199 i
17.
 
Sony A995/5....84/1004.5/54.5/5 Sep 2012 2,799i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The assessments were made in relation to similar cameras of the same technological generation. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Pentax MX-1:
Check Ebay offers
Sony A77:
Check Ebay offers

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 make your choice using the following search menu. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications: Pentax MX-1 vs Sony A77

    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 Pentax MX-1 Sony A77
    Camera Type Fixed lens compact camera Digital single lens reflex
    Camera Lens 28-112mm f/1.8-2.5 Sony A mount lenses
    Launch Date January 2013 August 2011
    Launch Price USD 499 USD 1,399
    Sensor Specs Pentax MX-1 Sony A77
    Sensor Technology CMOS CMOS
    Sensor Format 1/1.7" Sensor APS-C Sensor
    Sensor Size 7.6 x 5.7 mm 23.5 x 15.6 mm
    Sensor Area 43.32 mm2 366.6 mm2
    Sensor Diagonal 9.5 mm 28.2 mm
    Crop Factor 4.5x 1.5x
    Sensor Resolution 12 Megapixels 24 Megapixels
    Image Resolution 4000 x 3000 pixels 6000 x 4000 pixels
    Pixel Pitch 1.89 μm 3.91 μm
    Pixel Density 27.70 MP/cm2 6.55 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/30p Video 1080/60p Video
    ISO Setting 100 - 12,800 ISO 100 - 16,000 ISO
    ISO Boost no Enhancement 50 - 25,600 ISO
    DXO Sensor Quality (score) 49 78
    DXO Color Depth (bits) 20.4 24.0
    DXO Dynamic Range (EV) 11.3 13.2
    DXO Low Light (ISO) 208 801
    Screen Specs Pentax MX-1 Sony A77
    Viewfinder Type no viewfinder Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.73x
    Viewfinder Resolution 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 920k dots 921k dots
    LCD Attachment Tilting screen Fully flexible screen
    Shooting Specs Pentax MX-1 Sony A77
    Focus System Contrast-detect AF Phase-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/8000s
    Continuous Shooting 1 shutter flaps/s 12 shutter flaps/s
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash Built-in Flash Built-in Flash
    Storage Medium SDXC cards MS or SDXC cards
    Second Storage Option Single card slot Single card slot
    UHS card support no UHS-I
    Connectivity Specs Pentax MX-1 Sony A77
    External Flash no Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI mini HDMI
    Microphone Port no MIC socket External MIC port
    Wifi Support no Wifi no Wifi
    Geotagging no internal GPS GPS built-in
    Body Specs Pentax MX-1 Sony A77
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type D-LI106 NP-FM500H
    Battery Life (CIPA)290 shots per charge470 shots per charge
    Body Dimensions 122 x 61 x 51 mm
    (4.8 x 2.4 x 2.0 in)
    143 x 104 x 81 mm
    (5.6 x 4.1 x 3.2 in)
    Camera Weight 391 g (13.8 oz) 732 g (25.8 oz)

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