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Pentax MX-1 vs Sony A7S

The Pentax MX-1 and the Sony Alpha A7S are two digital cameras that were revealed to the public, respectively, in January 2013 and April 2014. The MX-1 is a fixed lens compact, while the A7S is a mirrorless interchangeable lens camera. The cameras are based on a 1/1.7-inch (MX-1) and a full frame (A7S) sensor. Both cameras offer a resolution of 12 megapixels.

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 A7S
Pentax MX-1   Sony A7S
Fixed lens compact camera Mirrorless system camera
28-112mm f/1.8-2.5 Sony E mount lenses
12 MP – 1/1.7" sensor 12 MP – Full Frame sensor
1080/30p Video 1080/60p Video
ISO 100-12,800 ISO 100-102,400 (50 - 409,600)
No viewfinder, LCD framing Electronic viewfinder (2400k dots)
3.0" LCD – 920k dots 3.0" LCD – 921k dots
Tilting screen (no touchscreen) Tilting screen (no touchscreen)
1 shutter flaps per second 5 shutter flaps per second
In-body stabilizationLens stabilization only
not weather sealedWeathersealed body
290 shots per battery charge380 shots per battery charge
122 x 61 x 51 mm, 391 g 127 x 94 x 48 mm, 489 g
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Check A7S offers at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Pentax MX-1 and the Sony Alpha A7S? 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 physical size and weight of the Pentax MX-1 and the Sony A7S are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All size dimensions are rounded to the nearest millimeter.

Size Pentax MX-1 vs Sony A7S
Compare MX-1 versus A7S top
Comparison MX-1 or A7S rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7S is considerably larger (60 percent) than the Pentax MX-1. It is noteworthy in this context that the A7S 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 A7S is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the A7S and their specifications in the Sony FE Lens Catalog.

The power pack in the A7S can be charged via the USB port, which can be very convenient 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.
 
Pentax MX-1 122 mm 61 mm 51 mm 391 g 290 n Jan 2013 499ebay.com
2.
 
Sony A7S 127 mm 94 mm 48 mm 489 g 380 Y Apr 2014 2,499ebay.com
3.
 
Canon G16 109 mm 76 mm 40 mm 356 g 360 n Aug 2013 549ebay.com
4.
 
Canon G15 107 mm 76 mm 40 mm 352 g 350 n Sep 2012 499ebay.com
5.
 
Canon SX50 123 mm 87 mm 106 mm 595 g 315 n Sep 2012 429ebay.com
6.
 
Fujifilm X30 119 mm 72 mm 60 mm 423 g 470 n Aug 2014 599ebay.com
7.
 
Fujifilm X20 117 mm 70 mm 57 mm 353 g 270 n Jan 2013 599ebay.com
8.
 
Fujifilm X10 117 mm 70 mm 57 mm 350 g 270 n Sep 2011 599ebay.com
9.
 
Nikon D750 141 mm 113 mm 78 mm 750 g 1230 Y Sep 2014 2,299ebay.com
10.
 
Nikon P7800 119 mm 78 mm 50 mm 399 g 350 n Sep 2013 549ebay.com
11.
 
Olympus XZ-2 113 mm 65 mm 48 mm 346 g 340 n Sep 2012 599ebay.com
12.
 
Olympus E-PL2 114 mm 72 mm 42 mm 362 g 280 n Jan 2011 599ebay.com
13.
 
Panasonic LX7 111 mm 68 mm 46 mm 298 g 330 n Jul 2012 499ebay.com
14.
 
Sony A7S II 127 mm 96 mm 60 mm 627 g 370 Y Sep 2015 2,999ebay.com
15.
 
Sony A7 127 mm 94 mm 48 mm 474 g 340 Y Oct 2013 1,699ebay.com
16.
 
Sony A7R 127 mm 94 mm 48 mm 465 g 340 Y Oct 2013 2,299ebay.com
17.
 
Sony RX1R 113 mm 65 mm 70 mm 482 g 270 n Jun 2013 2,799ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. 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 MX-1 was launched at a lower price than the A7S, 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.

Sensor comparison

The size of the imaging sensor is a crucial determinant 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. 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 A7S a full frame sensor. The sensor area in the A7S is 1891 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 4.5 and 1.0. The sensor in the MX-1 has a native 4:3 aspect ratio, while the one in the A7S offers a 3:2 aspect.

Pentax MX-1 and Sony A7S sensor measures

Even though the A7S has a larger sensor, both cameras offer the same resolution of 12 megapixels. This implies that the A7S has a lower pixel density and larger individual pixels (with a pixel pitch of 8.45μm versus 1.89μm for the MX-1), which gives it a potential advantage in terms of light gathering capacity. In addition, the A7S is a somewhat more recent model (by 1 year and 2 months) than the MX-1, and its sensor might have benefitted from technological advances during this time.

The Pentax MX-1 has a native sensitivity range from ISO 100 to ISO 12800. The corresponding ISO settings for the Sony Alpha A7S are ISO 100 to ISO 102400, with the possibility to increase the ISO range to 50-409600.

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.

MX-1 versus A7S MP

For many cameras, data on sensor performance has been reported by DXO Mark. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). Of the two cameras under consideration, the A7S offers substantially better image quality than the MX-1 (overall score 38 points higher). The advantage is based on 3.5 bits higher color depth, 1.9 EV in additional dynamic range, and 4.2 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 A7S Full Frame 12.0 4240 28321080/60p23.913.2370287
3.
 
Canon G16 1/1.7 12.0 4000 30001080/60p21.011.723054
4.
 
Canon G15 1/1.7 12.0 4000 30001080/24p19.911.516546
5.
 
Canon SX50 1/2.3 12.0 4000 30001080/24p20.311.217947
6.
 
Fujifilm X30 2/3 12.0 4000 30001080/60p20.411.2-31249
7.
 
Fujifilm X20 2/3 12.0 4000 30001080/60p20.110.9-46246
8.
 
Fujifilm X10 2/3 12.0 4000 30001080/30p20.511.324550
9.
 
Nikon D750 Full Frame 24.2 6016 40161080/60p24.814.5295693
10.
 
Nikon P7800 1/1.7 12.0 4000 30001080/30p21.211.720054
11.
 
Olympus XZ-2 1/1.7 11.8 3968 29761080/30p20.411.321649
12.
 
Olympus E-PL2 Four Thirds 12.2 4032 3024720/30p21.410.257355
13.
 
Panasonic LX7 1/1.7 10.0 3648 27361080/60p20.711.714750
14.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385
15.
 
Sony A7 Full Frame 24.0 6000 40001080/60p24.814.2224890
16.
 
Sony A7R Full Frame 36.2 7360 49121080/60p25.614.1274695
17.
 
Sony RX1R Full Frame 24.0 6000 40001080/60p25.013.6253791
Note: DXO values in italics represent estimates based on sensor size and age.

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 A7S 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

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the A7S has an electronic viewfinder (2400k 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 adjacent table lists some of the other core features of the Pentax MX-1 and Sony A7S along with similar information for a selection of comparators.

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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)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Pentax MX-1none n3.0 / 920 tilting n 1/8000s 1.0/s Y Y
2.
 
Sony A7S2400 n3.0 / 921 tilting n 1/8000s 5.0/s n n
3.
 
Canon G16optical n3.0 / 922 fixed n 1/4000s 2.2/s Y Y
4.
 
Canon G15optical n3.0 / 922 fixed n 1/4000s 2.1/s Y Y
5.
 
Canon SX50202 n3.0 / 461 swivel n 1/2000s 2.2/s Y Y
6.
 
Fujifilm X302360 n3.0 / 920 tilting n 1/4000s 12.0/s Y Y
7.
 
Fujifilm X20optical n2.8 / 460 fixed n 1/4000s 12.0/s Y Y
8.
 
Fujifilm X10optical n2.8 / 460 fixed n 1/4000s 10.0/s Y Y
9.
 
Nikon D750optical Y3.2 / 1229 tilting n 1/4000s 6.0/s Y n
10.
 
Nikon P7800921 n3.0 / 921 swivel n 1/4000s 8.0/s Y Y
11.
 
Olympus XZ-2optional n3.0 / 920 tilting Y 1/2000s 5.0/s Y Y
12.
 
Olympus E-PL2optional n3.0 / 460 fixed n 1/4000s 3.0/s Y Y
13.
 
Panasonic LX7optional n3.0 / 920 fixed n 1/4000s 11.0/s Y Y
14.
 
Sony A7S II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
15.
 
Sony A72400 n3.0 / 1230 tilting n 1/8000s 5.0/s n n
16.
 
Sony A7R2400 n3.0 / 1230 tilting n 1/8000s 4.0/s n n
17.
 
Sony RX1Roptional n3.0 / 1229 fixed n 1/4000s 5.0/s Y n
Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One difference between the cameras concerns the presence of an on-board flash. The MX-1 has one, while the A7S does not. While the built-in flash of the MX-1 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 A7S 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 MX-1 writes its imaging data to SDXC cards, while the A7S uses SDXC or Memory Stick PRO Duo cards. The A7S 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 A7S 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 A7SYstereo / monoYYmicro2.0YY-
3.
 
Canon G16Ystereo / mono--mini2.0Y--
4.
 
Canon G15Ystereo / mono--mini2.0---
5.
 
Canon SX50Ystereo / mono--mini2.0---
6.
 
Fujifilm X30Ystereo / mono--micro2.0Y--
7.
 
Fujifilm X20Ystereo / mono--micro2.0---
8.
 
Fujifilm X10Ystereo / mono--mini2.0---
9.
 
Nikon D750Ystereo / monoYYmini2.0Y--
10.
 
Nikon P7800Ystereo / monoY-mini2.0---
11.
 
Olympus XZ-2Ystereo / mono--mini2.0---
12.
 
Olympus E-PL2Ystereo / ---mini2.0---
13.
 
Panasonic LX7Ystereo / mono--mini2.0---
14.
 
Sony A7S IIYstereo / monoYYmicro2.0YY-
15.
 
Sony A7Ystereo / monoYYmicro2.0YY-
16.
 
Sony A7RYstereo / monoYYmicro2.0YY-
17.
 
Sony RX1RYstereo / monoY-mini2.0---

It is notable that the A7S offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the MX-1 does not provide wifi capability.

Both the MX-1 and the A7S have been discontinued, but can regularly be found used on ebay. The A7S was replaced by the Sony A7S II, while the MX-1 does not have a direct successor. Further information on the features and operation of the MX-1 and A7S can be found, respectively, in the Pentax MX-1 Manual (free pdf) or the online Sony A7S Manual.

Review summary

So how do things add up? Which of the two cameras – the Pentax MX-1 or the Sony A7S – 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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Advantages of the Pentax MX-1:

  • Ready to shoot: Has a lens built-in, whereas the A7S requires a separate lens.
  • More compact: Is smaller (122x61mm vs 127x94mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the A7S).
  • 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.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More heavily discounted: Has been on the market for longer (launched in January 2013).

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Arguments in favor of the Sony Alpha A7S:

  • Better image quality: Scores substantially higher (38 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (3.5 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 (4.2 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.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • Easier framing: Has an electronic viewfinder for image composition and settings control.
  • Faster burst: Shoots at higher frequency (5 vs 1 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
  • Longer lasting: Gets more shots (380 versus 290) out of a single battery charge.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • 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 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.
  • Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
  • More modern: Was introduced somewhat (1 year and 2 months) more recently.

If the count of relative strengths (bullet points above) is taken as a measure, the A7S is the clear winner of the contest (19 : 7 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 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 07:19 A7S

How about other alternatives? Do the specifications of the Pentax MX-1 and the Sony A7S place the cameras among the top in their class? Find out in the latest Best Travel-Zoom 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 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 A7S in practical situations. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

Expert reviews

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

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Expert Camera Reviews
     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 499ebay.com
2.
 
Sony A7S4/5....86/1004.5/55/5 Apr 2014 2,499ebay.com
3.
 
Canon G164/5+....4.5/54.5/5 Aug 2013 549ebay.com
4.
 
Canon G154/5+..76/1004.5/54.5/5 Sep 2012 499ebay.com
5.
 
Canon SX503/5+ +..72/1004.5/54.5/5 Sep 2012 429ebay.com
6.
 
Fujifilm X304/5....76/1004.5/54.5/5 Aug 2014 599ebay.com
7.
 
Fujifilm X204/5+ +..77/1004.5/55/5 Jan 2013 599ebay.com
8.
 
Fujifilm X10......76/1004/54.5/5 Sep 2011 599ebay.com
9.
 
Nikon D7505/5+ +4/590/1004.5/54.5/5 Sep 2014 2,299ebay.com
10.
 
Nikon P78003/5......4/54.5/5 Sep 2013 549ebay.com
11.
 
Olympus XZ-24/5+....4.5/54.5/5 Sep 2012 599ebay.com
12.
 
Olympus E-PL23/583/100..71/1004.5/54.5/5 Jan 2011 599ebay.com
13.
 
Panasonic LX73/5+ +..75/1004/54.5/5 Jul 2012 499ebay.com
14.
 
Sony A7S II5/5+....4.5/55/5 Sep 2015 2,999ebay.com
15.
 
Sony A75/5+ +..80/1005/55/5 Oct 2013 1,699ebay.com
16.
 
Sony A7R5/5+ +..82/1004.5/55/5 Oct 2013 2,299ebay.com
17.
 
Sony RX1R5/5......4/54.5/5 Jun 2013 2,799ebay.com
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 rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

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Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes 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: Pentax MX-1 vs Sony A7S

    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 A7S
    Camera Type Fixed lens compact camera Mirrorless system camera
    Camera Lens 28-112mm f/1.8-2.5 Sony E mount lenses
    Launch Date January 2013 April 2014
    Launch Price USD 499 USD 2,499
    Sensor Specs Pentax MX-1 Sony A7S
    Sensor Technology CMOS CMOS
    Sensor Format 1/1.7" Sensor Full Frame Sensor
    Sensor Size 7.6 x 5.7 mm 35.8 x 23.9 mm
    Sensor Area 43.32 mm2 855.62 mm2
    Sensor Diagonal 9.5 mm 43 mm
    Crop Factor 4.5x 1.0x
    Sensor Resolution 12 Megapixels 12 Megapixels
    Image Resolution 4000 x 3000 pixels 4240 x 2832 pixels
    Pixel Pitch 1.89 μm 8.45 μm
    Pixel Density 27.70 MP/cm2 1.40 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 - 102,400 ISO
    ISO Boost no Enhancement 50 - 409,600 ISO
    DXO Sensor Quality (score) 49 87
    DXO Color Depth (bits) 20.4 23.9
    DXO Dynamic Range (EV) 11.3 13.2
    DXO Low Light (ISO) 208 3702
    Screen Specs Pentax MX-1 Sony A7S
    Viewfinder Type no viewfinder Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.71x
    Viewfinder Resolution 2400k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 920k dots 921k dots
    LCD Attachment Tilting screen Tilting screen
    Shooting Specs Pentax MX-1 Sony A7S
    Focus System Contrast-detect AF Contrast-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/8000s
    Continuous Shooting 1 shutter flaps/s 5 shutter flaps/s
    Electronic Shutterno E-ShutterYES
    Image StabilizationIn-body stabilizationLens stabilization only
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium SDXC cards MS or SDXC cards
    Single or Dual Card Slots Single card slot Single card slot
    UHS card support no UHS-I
    Connectivity Specs Pentax MX-1 Sony A7S
    External Flash no Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI micro HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support no Wifi Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Body Specs Pentax MX-1 Sony A7S
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type D-LI106 NP-FW50
    Battery Life (CIPA)290 shots per charge380 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 122 x 61 x 51 mm
    (4.8 x 2.4 x 2.0 in)
    127 x 94 x 48 mm
    (5.0 x 3.7 x 1.9 in)
    Camera Weight 391 g (13.8 oz) 489 g (17.2 oz)
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