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Fujifilm X10 vs Pentax 645D

The Fujifilm X10 and the Pentax 645D are two digital cameras that were officially introduced, respectively, in September 2011 and March 2010. The X10 is a fixed lens compact, while the 645D is a DSLR. The cameras are based on a 2/3 (X10) and a medium format (645D) sensor. The Fujifilm has a resolution of 12 megapixels, whereas the Pentax provides 39.5 MP.

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

Headline Specifications
Fujifilm X10
versus
Pentax 645D
Fujifilm X10   Pentax 645D
Fixed lens compact camera Digital single lens reflex
28-112mm f/2.0-2.8 Pentax 645 mount lenses
12 MP – Two Thirds sensor 39.5 MP – Medium Format sensor
1080/30p Video no Video
ISO 100-3,200 (100 - 12,800) ISO 100-1,600
Optical viewfinder Optical viewfinder
2.8" LCD – 460k dots 3.0" LCD – 921k dots
Fixed screen (not touch-sensitive) Fixed screen (not touch-sensitive)
10 shutter flaps per second 1.1 shutter flaps per second
not weather sealedWeathersealed body
270 shots per battery charge800 shots per battery charge
117 x 70 x 57 mm, 350 g 156 x 117 x 119 mm, 1480 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm X10 and the Pentax 645D? 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 Fujifilm X10 and the Pentax 645D is provided 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 width, height and depth dimensions are rounded to the nearest millimeter.

The X10 can be obtained in two different colors (black, silver), while the 645D is only available in black.

Size Fujifilm X10 vs Pentax 645D
Compare X10 versus 645D top
Comparison X10 or 645D rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax 645D is considerably larger (123 percent) than the Fujifilm X10. It is noteworthy in this context that the 645D is splash and dust-proof, while the X10 does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the X10 has a lens built in, whereas the 645D 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 X10 gets 270 shots out of its NP-50 battery, while the 645D can take 800 images on a single charge of its D-LI90 power pack.

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.
 
Fujifilm X10 117 mm 70 mm 57 mm 350 g 270 n Sep 2011 599ebay.com
2.
 
Pentax 645D 156 mm 117 mm 119 mm 1480 g 800 Y Mar 2010 9,995ebay.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 1D X 158 mm 168 mm 83 mm 1551 g 1120 Y Oct 2011 6,799ebay.com
6.
 
Canon G12 112 mm 76 mm 48 mm 401 g 370 n Sep 2010 499ebay.com
7.
 
Canon 1D Mark IV 156 mm 157 mm 80 mm 1230 g 1500 Y Oct 2009 4,999ebay.com
8.
 
Fujifilm X30 119 mm 72 mm 60 mm 423 g 470 n Aug 2014 599ebay.com
9.
 
Fujifilm X20 117 mm 70 mm 57 mm 353 g 270 n Jan 2013 599ebay.com
10.
 
Leica D-LUX 6 111 mm 68 mm 46 mm 298 g 330 n Sep 2012 699ebay.com
11.
 
Leica S Typ 006 160 mm 120 mm 80 mm 1260 g .. Y Sep 2012 21,950ebay.com
12.
 
Nikon D3S 160 mm 157 mm 88 mm 1240 g 4200 Y Oct 2009 5,199ebay.com
13.
 
Panasonic LX7 111 mm 68 mm 46 mm 298 g 330 n Jul 2012 499ebay.com
14.
 
Panasonic G10 124 mm 84 mm 74 mm 388 g 380 n Mar 2010 499ebay.com
15.
 
Panasonic GF2 113 mm 68 mm 33 mm 310 g 300 n Nov 2010 549ebay.com
16.
 
Panasonic LX5 110 mm 65 mm 43 mm 271 g 400 n Jul 2010 499ebay.com
17.
 
Pentax 645Z 156 mm 117 mm 123 mm 1550 g 650 Y Apr 2014 8,499 amazon.com
Note: 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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The X10 was launched at a lower price than the 645D, 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 Fujifilm X10 features a 2/3 sensor and the Pentax 645D a medium format sensor. The sensor area in the 645D is 2403 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 3.9 and 0.79. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.

Fujifilm X10 and Pentax 645D sensor measures

With 39.5MP, the 645D offers a higher resolution than the X10 (12MP), but the 645D nevertheless has larger individual pixels (pixel pitch of 6.06μm versus 2.20μm for the X10) due to its larger sensor. However, the X10 is a somewhat more recent model (by 1 year and 5 months) than the 645D, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.

The resolution advantage of the Pentax 645D implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 645D for good quality output (200 dots per inch) amounts to 36.3 x 27.2 inches or 92.3 x 69.1 cm, for very good quality (250 dpi) 29.1 x 21.8 inches or 73.8 x 55.3 cm, and for excellent quality (300 dpi) 24.2 x 18.1 inches or 61.5 x 46.1 cm. The corresponding values for the Fujifilm X10 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 Fujifilm X10 has a native sensitivity range from ISO 100 to ISO 3200, which can be extended to ISO 100-12800. The corresponding ISO settings for the Pentax 645D are ISO 100 to ISO 1600 (no boost).

In terms of underlying technology, the X10 is build around a CMOS sensor, while the 645D uses a CCD imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

X10 versus 645D MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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"). Of the two cameras under consideration, the 645D offers substantially better image quality than the X10 (overall score 32 points higher). The advantage is based on 4.1 bits higher color depth, 1.3 EV in additional dynamic range, and 2.4 stops in additional low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

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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.
 
Fujifilm X10 2/3 12.0 4000 30001080/30p20.511.324550
2.
 
Pentax 645D Medium Format 39.5 7264 5440none24.612.6126282
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 1D X Full Frame 17.9 5184 34561080/30p23.811.8278682
6.
 
Canon G12 1/1.7 10.0 3648 2736720/24p20.411.216147
7.
 
Canon 1D Mark IV APS-H 16.0 4896 32641080/30p22.812.0132074
8.
 
Fujifilm X30 2/3 12.0 4000 30001080/60p20.411.2-31249
9.
 
Fujifilm X20 2/3 12.0 4000 30001080/60p20.110.9-46246
10.
 
Leica D-LUX 6 1/1.7 10.0 3648 27361080/60p19.810.8-30343
11.
 
Leica S Typ 006 Medium Format 37.5 7500 5000none23.912.282476
12.
 
Nikon D3S Full Frame 12.1 4256 2832720/24p23.512.0325382
13.
 
Panasonic LX7 1/1.7 10.0 3648 27361080/60p20.711.714750
14.
 
Panasonic G10 Four Thirds 12.0 4000 3000720/30p21.210.141152
15.
 
Panasonic GF2 Four Thirds 12.0 4000 30001080/60i21.210.350654
16.
 
Panasonic LX5 1/1.7 10.0 3648 2736720/60p19.610.813241
17.
 
Pentax 645Z Medium Format 51.1 8256 61921080/60i26.014.74505101
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 can also record movies. The X10 indeed provides movie recording capabilities, while the 645D does not. The highest resolution format that the X10 can use is 1080/30p.

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. The X10 and the 645D are similar in the sense that both have an optical viewfinder. The latter is useful for getting a clear image for framing even in brightly lit environments. The following table reports on some other key feature differences and similarities of the Fujifilm X10, the Pentax 645D, and comparable 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)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Fujifilm X10optical n2.8 / 460 fixed n 1/4000s 10.0/s Y Y
2.
 
Pentax 645Doptical Y3.0 / 921 fixed n 1/4000s 1.1/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 1D Xoptical Y3.2 / 1040 fixed n 1/8000s 14.0/s n n
6.
 
Canon G12optical n2.8 / 461 swivel n 1/4000s 1.1/s Y Y
7.
 
Canon 1D Mark IVoptical Y3.0 / 920 fixed n 1/8000s 10.0/s n n
8.
 
Fujifilm X302360 n3.0 / 920 tilting n 1/4000s 12.0/s Y Y
9.
 
Fujifilm X20optical n2.8 / 460 fixed n 1/4000s 12.0/s Y Y
10.
 
Leica D-LUX 6optional n3.0 / 920 fixed n 1/4000s 11.0/s Y Y
11.
 
Leica S Typ 006optical Y3.0 / 922 fixed n 1/4000s 1.5/s n n
12.
 
Nikon D3Soptical Y3.0 / 921 fixed n 1/8000s 11.0/s n n
13.
 
Panasonic LX7optional n3.0 / 920 fixed n 1/4000s 11.0/s Y Y
14.
 
Panasonic G10202 n3.0 / 460 fixed n 1/4000s 2.6/s Y n
15.
 
Panasonic GF2optional n3.0 / 460 fixed Y 1/4000s 2.6/s Y n
16.
 
Panasonic LX5optional n3.0 / 460 fixed n 1/4000s 2.5/s Y Y
17.
 
Pentax 645Zoptical Y3.2 / 1037 tilting n 1/4000s 3.0/s n 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 X10 has one, while the 645D does not. While the built-in flash of the X10 is not very powerful, it can at times be useful as a fill-in light.

The Pentax 645D 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.

Concerning the storage of imaging data, both the X10 and the 645D write their files to SDXC cards. The 645D features dual card slots, which can be very useful in case a memory card fails. In contrast, the X10 only has one slot.

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 Fujifilm X10 and Pentax 645D 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.
 
Fujifilm X10Ystereo / mono--mini2.0---
2.
 
Pentax 645DYstereo / ----2.0---
3.
 
Canon G16Ystereo / mono--mini2.0Y--
4.
 
Canon G15Ystereo / mono--mini2.0---
5.
 
Canon 1D XYmono / -Y-mini2.0---
6.
 
Canon G12Ystereo / mono--mini2.0---
7.
 
Canon 1D Mark IVYstereo / -Y-mini2.0---
8.
 
Fujifilm X30Ystereo / mono--micro2.0Y--
9.
 
Fujifilm X20Ystereo / mono--micro2.0---
10.
 
Leica D-LUX 6Ystereo / mono--mini2.0---
11.
 
Leica S Typ 006Y- / ---mini2.0---
12.
 
Nikon D3SYstereo / ---mini2.0---
13.
 
Panasonic LX7Ystereo / mono--mini2.0---
14.
 
Panasonic G10Ymono / ---mini2.0---
15.
 
Panasonic GF2Ystereo / mono--mini2.0---
16.
 
Panasonic LX5Ymono / mono--mini2.0---
17.
 
Pentax 645ZYstereo / monoY-mini3.0---

Studio photographers will appreciate that the Pentax 645D (unlike the X10) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the X10 and the 645D have been discontinued, but can regularly be found used on ebay. The 645D was replaced by the Pentax 645Z, while the X10 was followed by the Fujifilm X20. Further information on the features and operation of the X10 and 645D can be found, respectively, in the Fujifilm X10 Manual (free pdf) or the online Pentax 645D Manual.

Review summary

So what conclusions can be drawn? Which of the two cameras – the Fujifilm X10 or the Pentax 645D – 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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Reasons to prefer the Fujifilm X10:

  • Broader imaging potential: Can record not only still images but also 1080/30p movies.
  • Faster burst: Shoots at higher frequency (10 vs 1.1 flaps/sec) to capture the decisive moment.
  • Ready to shoot: Comes with a built-in lens, while the 645D requires a separate lens.
  • More compact: Is smaller (117x70mm vs 156x117mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the 645D).
  • 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 modern: Is somewhat more recent (announced 1 year and 5 months after the 645D).

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Arguments in favor of the Pentax 645D:

  • More detail: Has more megapixels (39.5 vs 12MP), which boosts linear resolution by 82%.
  • Better image quality: Scores substantially higher (32 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (4.1 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (1.3 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (2.4 stops ISO advantage).
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.0" vs 2.8") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (921k vs 460k dots).
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • More flexible: Makes it possible to change lenses and thus to use specialty optics.
  • Longer lasting: Gets more shots (800 versus 270) out of a single battery charge.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More heavily discounted: Has been on the market for longer (launched in March 2010).

If the count of individual advantages (bullet points above) is taken as a guide, the 645D is the clear winner of the contest (15 : 9 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.

X10 09:15 645D

How about other alternatives? Do the specifications of the Fujifilm X10 and the Pentax 645D 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 X10 and the 645D 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.
 
Fujifilm X10......76/1004/54.5/5 Sep 2011 599ebay.com
2.
 
Pentax 645D5/5.......... Mar 2010 9,995ebay.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 1D X5/5......4.5/54.5/5 Oct 2011 6,799ebay.com
6.
 
Canon G124/5+..73/1004.5/54.5/5 Sep 2010 499ebay.com
7.
 
Canon 1D Mark IV5/5....89/100.... Oct 2009 4,999ebay.com
8.
 
Fujifilm X304/5....76/1004.5/54.5/5 Aug 2014 599ebay.com
9.
 
Fujifilm X204/5+ +..77/1004.5/55/5 Jan 2013 599ebay.com
10.
 
Leica D-LUX 6........4/54/5 Sep 2012 699ebay.com
11.
 
Leica S Typ 006............ Sep 2012 21,950ebay.com
12.
 
Nikon D3S5/5....89/1004.5/55/5 Oct 2009 5,199ebay.com
13.
 
Panasonic LX73/5+ +..75/1004/54.5/5 Jul 2012 499ebay.com
14.
 
Panasonic G103/5....70/1004/54/5 Mar 2010 499ebay.com
15.
 
Panasonic GF23/582/100..70/1004.5/54.5/5 Nov 2010 549ebay.com
16.
 
Panasonic LX54/5+..73/1004.5/54.5/5 Jul 2010 499ebay.com
17.
 
Pentax 645Z5/5......4.5/55/5 Apr 2014 8,499 amazon.com
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. 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? 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: Fujifilm X10 vs Pentax 645D

    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 Fujifilm X10 Pentax 645D
    Camera Type Fixed lens compact camera Digital single lens reflex
    Camera Lens 28-112mm f/2.0-2.8 Pentax 645 mount lenses
    Launch Date September 2011 March 2010
    Launch Price USD 599 USD 9,995
    Sensor Specs Fujifilm X10 Pentax 645D
    Sensor Technology CMOS CCD
    Sensor Format Two Thirds Sensor Medium Format Sensor
    Sensor Size 8.8 x 6.6 mm 44.0 x 33.0 mm
    Sensor Area 58.08 mm2 1452 mm2
    Sensor Diagonal 11 mm 55 mm
    Crop Factor 3.9x 0.79x
    Sensor Resolution 12 Megapixels 39.5 Megapixels
    Image Resolution 4000 x 3000 pixels 7264 x 5440 pixels
    Pixel Pitch 2.20 μm 6.06 μm
    Pixel Density 20.66 MP/cm2 2.72 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 1080/30p Video no Video
    ISO Setting 100 - 3,200 ISO 100 - 1,600 ISO
    ISO Boost 100 - 12,800 ISO no Enhancement
    Image Processor EXR Processor II PRIME II
    DXO Sensor Quality (score) 50 82
    DXO Color Depth (bits) 20.5 24.6
    DXO Dynamic Range (EV) 11.3 12.6
    DXO Low Light (ISO) 245 1262
    Screen Specs Fujifilm X10 Pentax 645D
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 85% 98%
    Viewfinder Magnification 0.78x
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View
    Rear LCD Size 2.8inch 3.0inch
    LCD Resolution 460k dots 921k dots
    LCD Attachment Fixed screen Fixed screen
    Shooting Specs Fujifilm X10 Pentax 645D
    Focus System Contrast-detect AF Phase-detect AF
    Continuous Shooting 10 shutter flaps/s 1.1 shutter flaps/s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium SDXC cards SDXC cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support no no
    Connectivity Specs Fujifilm X10 Pentax 645D
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI no HDMI
    Wifi Support no Wifi no Wifi
    Body Specs Fujifilm X10 Pentax 645D
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type NP-50 D-LI90
    Battery Life (CIPA)270 shots per charge800 shots per charge
    Body Dimensions 117 x 70 x 57 mm
    (4.6 x 2.8 x 2.2 in)
    156 x 117 x 119 mm
    (6.1 x 4.6 x 4.7 in)
    Camera Weight 350 g (12.3 oz) 1480 g (52.2 oz)
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