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Olympus E-400 vs Pentax 645Z

The Olympus E-400 and the Pentax 645Z are two digital cameras that were officially introduced, respectively, in September 2006 and April 2014. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a Four Thirds (E-400) and a medium format (645Z) sensor. The Olympus has a resolution of 10 megapixels, whereas the Pentax provides 51.1 MP.

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

Headline Specifications
Olympus E-400
versus
Pentax 645Z
Olympus E-400   Pentax 645Z
Digital single lens reflex Digital single lens reflex
Four Thirds lenses Pentax 645 mount lenses
10 MP – Four Thirds sensor 51.1 MP – Medium Format sensor
no Video 1080/60i Video
ISO 100-1,600 ISO 100-204,800
Optical viewfinder Optical viewfinder
2.5" LCD – 215k dots 3.2" LCD – 1037k dots
Fixed screen (not touch-sensitive) Tilting screen (no touchscreen)
3 shutter flaps per second 3 shutter flaps per second
not weather sealedWeathersealed body
500 shots per battery charge650 shots per battery charge
130 x 91 x 53 mm, 435 g 156 x 117 x 123 mm, 1550 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus E-400 and the Pentax 645Z? 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 Olympus E-400 and the Pentax 645Z are illustrated 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 dimensions are rounded to the nearest millimeter.

Size Olympus E-400 vs Pentax 645Z
Compare E-400 versus 645Z top
Comparison E-400 or 645Z rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax 645Z is considerably larger (54 percent) than the Olympus E-400. Moreover, the 645Z is substantially heavier (256 percent) than the E-400. It is noteworthy in this context that the 645Z is splash and dust-proof, while the E-400 does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the E-400 gets 500 shots out of its Olympus BLS-1 battery, while the 645Z can take 650 images on a single charge of its Pentax D-LI90 power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
1.
 
Olympus E-400 130 mm 91 mm 53 mm 435 g 500 n Sep 2006 US$ 699ebay.com
2.
 
Pentax 645Z 156 mm 117 mm 123 mm 1550 g 650 Y Apr 2014 US$ 8 499ebay.com
3.
 
Canon 5DS 152 mm 116 mm 76 mm 930 g 700 Y Feb 2015 US$ 3 699ebay.com
4.
 
Canon 5DS R 152 mm 116 mm 76 mm 930 g 700 Y Feb 2015 US$ 3 699ebay.com
5.
 
Hasselblad X1D 150 mm 98 mm 71 mm 725 g .. Y Jun 2016 US$ 8 995ebay.com
6.
 
Leica SL 147 mm 104 mm 39 mm 847 g 400 Y Oct 2015 US$ 7 449ebay.com
7.
 
Nikon D40X 124 mm 94 mm 64 mm 522 g 520 n Mar 2007 US$ 729ebay.com
8.
 
Olympus E-410 130 mm 91 mm 53 mm 435 g 500 n Mar 2007 US$ 699ebay.com
9.
 
Olympus E-420 130 mm 91 mm 53 mm 440 g 500 n Mar 2008 US$ 599ebay.com
10.
 
Olympus E-450 130 mm 91 mm 53 mm 440 g 500 n Mar 2009 US$ 499ebay.com
11.
 
Olympus E-500 130 mm 95 mm 66 mm 479 g 750 n Sep 2005 US$ 599ebay.com
12.
 
Olympus E-510 136 mm 92 mm 68 mm 538 g 750 n Mar 2007 US$ 799ebay.com
13.
 
Olympus E-620 130 mm 94 mm 60 mm 521 g 500 n Feb 2009 US$ 699ebay.com
14.
 
Olympus E-P3 122 mm 69 mm 34 mm 369 g 330 n Jun 2011 US$ 799ebay.com
15.
 
Olympus E-PL2 114 mm 72 mm 42 mm 362 g 280 n Jan 2011 US$ 599ebay.com
16.
 
Panasonic L10 135 mm 96 mm 78 mm 556 g 450 n Aug 2007 US$ 599ebay.com
17.
 
Pentax 645D 156 mm 117 mm 119 mm 1480 g 800 Y Mar 2010 US$ 9 995ebay.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 E-400 was launched at a markedly lower price (by 92 percent) than the 645Z, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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 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. 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 tend to be more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Olympus E-400 features a Four Thirds sensor and the Pentax 645Z a medium format sensor. The sensor area in the 645Z is 539 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 0.79. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.

Olympus E-400 and Pentax 645Z sensor measures

With 51.1MP, the 645Z offers a higher resolution than the E-400 (10MP), but the 645Z nevertheless has larger individual pixels (pixel pitch of 5.30μm versus 4.74μm for the E-400) due to its larger sensor. Moreover, the 645Z is a much more recent model (by 7 years and 7 months) than the E-400, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the 645Z has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Pentax 645Z implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 645Z for good quality output (200 dots per inch) amounts to 41.3 x 31 inches or 104.9 x 78.6 cm, for very good quality (250 dpi) 33 x 24.8 inches or 83.9 x 62.9 cm, and for excellent quality (300 dpi) 27.5 x 20.6 inches or 69.9 x 52.4 cm. The corresponding values for the Olympus E-400 are 18.2 x 13.7 inches or 46.3 x 34.7 cm for good quality, 14.6 x 10.9 inches or 37.1 x 27.8 cm for very good quality, and 12.2 x 9.1 inches or 30.9 x 23.2 cm for excellent quality prints.

The Olympus E-400 has a native sensitivity range from ISO 100 to ISO 1600. The corresponding ISO settings for the Pentax 645Z are ISO 100 to ISO 204800 (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.

E-400 versus 645Z 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. 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
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Olympus E-400 Four Thirds 10.0 3648 2736none21.010.612753
2.
 
Pentax 645Z Medium Format 51.1 8256 61921080/60i26.014.74505101
3.
 
Canon 5DS Full Frame 50.3 8688 57921080/30p24.712.4238187
4.
 
Canon 5DS R Full Frame 50.3 8688 57921080/30p24.612.4230886
5.
 
Hasselblad X1D Medium Format 51.3 8272 62001080/25p26.214.84489102
6.
 
Leica SL Full Frame 24.0 6000 40004K/30p25.013.4182188
7.
 
Nikon D40X APS-C 10.0 3872 2592none22.411.451663
8.
 
Olympus E-410 Four Thirds 10.0 3648 2736none21.110.049451
9.
 
Olympus E-420 Four Thirds 10.0 3648 2736none21.510.452756
10.
 
Olympus E-450 Four Thirds 10.0 3648 2736none21.510.551256
11.
 
Olympus E-500 Four Thirds 8.0 3264 2448none20.710.34551
12.
 
Olympus E-510 Four Thirds 10.0 3648 2736none21.210.044252
13.
 
Olympus E-620 Four Thirds 12.2 4032 3024none21.310.353655
14.
 
Olympus E-P3 Four Thirds 12.2 4032 30241080/60i20.810.153651
15.
 
Olympus E-PL2 Four Thirds 12.2 4032 3024720/30p21.410.257355
16.
 
Panasonic L10 Four Thirds 10.0 3648 2736none21.310.842955
17.
 
Pentax 645D Medium Format 39.5 7264 5440none24.612.6126282
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 645Z indeed provides for movie recording, while the E-400 does not. The highest resolution format that the 645Z can use is 1080/60i.

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. The E-400 and the 645Z 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 viewfinder in the 645Z offers a wider field of view (98%) than the one in the E-400 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the 645Z has a higher magnification (0.78x vs 0.46x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The following table reports on some other key feature differences and similarities of the Olympus E-400, the Pentax 645Z, and comparable cameras.

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Core Features
  empty 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.
 
Olympus E-400optical n2.5 / 215 fixed n 1/4000s 3.0/s Y n
2.
 
Pentax 645Zoptical Y3.2 / 1037 tilting n 1/4000s 3.0/s n n
3.
 
Canon 5DSoptical Y3.2 / 1040 fixed n 1/8000s 5.0/s n n
4.
 
Canon 5DS Roptical Y3.2 / 1040 fixed n 1/8000s 5.0/s n n
5.
 
Hasselblad X1D2360 n3.0 / 920 fixed Y 1/2000s 2.3/s n n
6.
 
Leica SL4400 Y3.0 / 1040 fixed Y 1/8000s 11.0/s n n
7.
 
Nikon D40Xoptical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
8.
 
Olympus E-410optical n2.5 / 215 fixed n 1/4000s 3.0/s Y n
9.
 
Olympus E-420optical n2.7 / 215 fixed n 1/4000s 3.5/s Y n
10.
 
Olympus E-450optical n2.7 / 215 fixed n 1/4000s 3.5/s Y n
11.
 
Olympus E-500optical n2.5 / 215 fixed n 1/4000s 2.5/s Y n
12.
 
Olympus E-510optical n2.5 / 215 fixed n 1/4000s 3.0/s Y Y
13.
 
Olympus E-620optical n2.7 / 230 swivel n 1/4000s 4.0/s Y Y
14.
 
Olympus E-P3optional n3.0 / 614 fixed Y 1/4000s 3.0/s Y Y
15.
 
Olympus E-PL2optional n3.0 / 460 fixed n 1/4000s 3.0/s Y Y
16.
 
Panasonic L10optical n2.5 / 207 swivel n 1/4000s 3.0/s Y n
17.
 
Pentax 645Doptical Y3.0 / 921 fixed n 1/4000s 1.1/s n n
Note: *) 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 E-400 has one, while the 645Z does not. While the built-in flash of the E-400 is not very powerful, it can at times be useful as a fill-in light.

The Pentax 645Z has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

The E-400 writes its imaging data to Compact Flash or xD Picture cards, while the 645Z uses SDXC cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails.

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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 Olympus E-400 and Pentax 645Z and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Olympus E-400Y- / ----2.0---
2.
 
Pentax 645ZYstereo / monoY-mini3.0---
3.
 
Canon 5DSYmono / monoY-mini3.0---
4.
 
Canon 5DS RYmono / monoY-mini3.0---
5.
 
Hasselblad X1DYstereo / monoYYmini3.0Y--
6.
 
Leica SLYstereo / monoYYfull3.0Y--
7.
 
Nikon D40XY- / ----2.0---
8.
 
Olympus E-410Y- / ----2.0---
9.
 
Olympus E-420Y- / ----2.0---
10.
 
Olympus E-450Y- / ----2.0---
11.
 
Olympus E-500Y- / ----2.0---
12.
 
Olympus E-510Y- / ----2.0---
13.
 
Olympus E-620Y- / ----2.0---
14.
 
Olympus E-P3Ystereo / ---mini2.0---
15.
 
Olympus E-PL2Ystereo / ---mini2.0---
16.
 
Panasonic L10Y- / ----2.0---
17.
 
Pentax 645DYstereo / ----2.0---

Studio photographers will appreciate that the Pentax 645Z (unlike the E-400) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the E-400 and the 645Z have been discontinued, but can regularly be found used on ebay. The E-400 was replaced by the Olympus E-410, while the 645Z does not have a direct successor. Further information on the features and operation of the E-400 and 645Z can be found, respectively, in the Olympus E-400 Manual (free pdf) or the online Pentax 645Z Manual.

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Review summary

So what is the bottom line? Is there a clear favorite between the Olympus E-400 and the Pentax 645Z? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.

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Reasons to prefer the Olympus E-400:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • More compact: Is smaller (130x91mm vs 156x117mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 1115g or 72 percent) and hence easier to carry around.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced into a lower priced category (92 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in September 2006).

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Arguments in favor of the Pentax 645Z:

  • More detail: Has more megapixels (51.1 vs 10MP), which boosts linear resolution by 126%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • 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.
  • Broader imaging potential: Can capture not only stills but also 1080/60i video.
  • More complete view: Has a viewfinder with a larger field of view (98% vs 95%).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.46x).
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.2" vs 2.5") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1037k vs 215k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Longer lasting: Gets more shots (650 versus 500) out of a single battery charge.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • More modern: Reflects 7 years and 7 months of technical progress since the E-400 launch.

If the count of relative strengths (bullet points above) is taken as a measure, the 645Z is the clear winner of the contest (19 : 6 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. A professional wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

E-400 06:19 645Z

How about other alternatives? Do the specifications of the Olympus E-400 and the Pentax 645Z place the cameras among the top in their class? Find out in the latest Best DSLR Camera listing whether the two cameras rank among the cream of the crop.

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it says little about, for example, the shooting experience and imaging performance of the E-400 and the 645Z 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 where reviews by experts come in. 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
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Olympus E-400..85/100....4/54/5 Sep 2006 US$ 699ebay.com
2.
 
Pentax 645Z5/5..3.5/5..4.5/55/5 Apr 2014 US$ 8 499ebay.com
3.
 
Canon 5DS..+..83/1004.5/54.5/5 Feb 2015 US$ 3 699ebay.com
4.
 
Canon 5DS R5/5+..83/1005/54.5/5 Feb 2015 US$ 3 699ebay.com
5.
 
Hasselblad X1D..o..81/100..4/5 Jun 2016 US$ 8 995ebay.com
6.
 
Leica SL4/5..4/584/1004.5/54/5 Oct 2015 US$ 7 449ebay.com
7.
 
Nikon D40X..79/100..+ +4/54/5 Mar 2007 US$ 729ebay.com
8.
 
Olympus E-410..86/100..+ +4/54.5/5 Mar 2007 US$ 699ebay.com
9.
 
Olympus E-420..85/100..+ +4/54.5/5 Mar 2008 US$ 599ebay.com
10.
 
Olympus E-450........4/54/5 Mar 2009 US$ 499ebay.com
11.
 
Olympus E-500..76/100..+ +.... Sep 2005 US$ 599ebay.com
12.
 
Olympus E-510..89/100..+ +3.5/54.5/5 Mar 2007 US$ 799ebay.com
13.
 
Olympus E-6203/588/100..72/1004.5/55/5 Feb 2009 US$ 699ebay.com
14.
 
Olympus E-P3..83/100..74/1004.5/54.5/5 Jun 2011 US$ 799ebay.com
15.
 
Olympus E-PL23/583/100..71/1004.5/54.5/5 Jan 2011 US$ 599ebay.com
16.
 
Panasonic L10..85/100..+3.5/54/5 Aug 2007 US$ 599ebay.com
17.
 
Pentax 645D5/5.......... Mar 2010 US$ 9 995ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. 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, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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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 use the search menu below. 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: Olympus E-400 vs Pentax 645Z

    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 Olympus E-400 Pentax 645Z
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Four Thirds lenses Pentax 645 mount lenses
    Launch Date September 2006 April 2014
    Launch Price USD 699 USD 8,499
    Sensor Specs Olympus E-400 Pentax 645Z
    Sensor Technology CMOS CMOS
    Sensor Format Four Thirds Sensor Medium Format Sensor
    Sensor Size 17.3 x 13.0 mm 43.8 x 32.8 mm
    Sensor Area 224.9 mm2 1436.64 mm2
    Sensor Diagonal 21.6 mm 54.7 mm
    Crop Factor 2.0x 0.79x
    Sensor Resolution 10 Megapixels 51.1 Megapixels
    Image Resolution 3648 x 2736 pixels 8256 x 6192 pixels
    Pixel Pitch 4.74 μm 5.30 μm
    Pixel Density 4.44 MP/cm2 3.56 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability no Video 1080/60i Video
    ISO Setting 100 - 1,600 ISO 100 - 204,800 ISO
    Image Processor TruePic PRIME III
    DXO Sensor Quality (score) .. 101
    DXO Color Depth (bits) .. 26.0
    DXO Dynamic Range (EV) .. 14.7
    DXO Low Light (ISO) .. 4505
    Screen Specs Olympus E-400 Pentax 645Z
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 95% 98%
    Viewfinder Magnification 0.46x 0.78x
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View
    Rear LCD Size 2.5inch 3.2inch
    LCD Resolution 215k dots 1037k dots
    LCD Attachment Fixed screen Tilting screen
    Shooting Specs Olympus E-400 Pentax 645Z
    Focus System Phase-detect AF Phase-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/4000s
    Continuous Shooting 3 shutter flaps/s 3 shutter flaps/s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium CF or XD cards SDXC cards
    Single or Dual Card Slots Dual card slots Dual card slots
    Connectivity Specs Olympus E-400 Pentax 645Z
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.0
    HDMI Port no HDMI mini HDMI
    Microphone Port no MIC socket External MIC port
    Wifi Support no Wifi no Wifi
    Body Specs Olympus E-400 Pentax 645Z
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Olympus BLS-1 Pentax D-LI90
    Battery Life (CIPA)500 shots per charge650 shots per charge
    Body Dimensions 130 x 91 x 53 mm
    (5.1 x 3.6 x 2.1 in)
    156 x 117 x 123 mm
    (6.1 x 4.6 x 4.8 in)
    Camera Weight 435 g (15.3 oz) 1550 g (54.7 oz)
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