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Olympus E-420 vs Pentax 645D

The Olympus E-420 and the Pentax 645D are two digital cameras that were revealed to the public, respectively, in March 2008 and March 2010. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a Four Thirds (E-420) and a medium format (645D) sensor. The Olympus has a resolution of 10 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
Olympus E-420
versus
Pentax 645D
Olympus E-420   Pentax 645D
Digital single lens reflex Digital single lens reflex
Four Thirds lenses Pentax 645 mount lenses
10 MP – Four Thirds sensor 39.5 MP – Medium Format sensor
no Video no Video
ISO 100-1,600 ISO 100-1,600
Optical viewfinder Optical viewfinder
2.7" LCD – 215k dots 3.0" LCD – 921k dots
Fixed screen (not touch-sensitive) Fixed screen (not touch-sensitive)
3.5 shutter flaps per second 1.1 shutter flaps per second
not weather sealedWeathersealed body
500 shots per battery charge800 shots per battery charge
130 x 91 x 53 mm, 440 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 Olympus E-420 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.

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Body comparison

An illustration of the physical size and weight of the Olympus E-420 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 perspectives from the front, the top, and the back are available. All width, height and depth measures are rounded to the nearest millimeter.

Size Olympus E-420 vs Pentax 645D
Compare E-420 versus 645D top
Comparison E-420 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 (54 percent) than the Olympus E-420. Moreover, the 645D is substantially heavier (236 percent) than the E-420. It is noteworthy in this context that the 645D is splash and dust-proof, while the E-420 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-420 gets 500 shots out of its Olympus BLS-1 battery, while the 645D can take 800 images on a single charge of its Pentax 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
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
1.
 
Olympus E-420 130 mm 91 mm 53 mm 440 g 500 n Mar 2008 US$ 599ebay.com
2.
 
Pentax 645D 156 mm 117 mm 119 mm 1480 g 800 Y Mar 2010 US$ 9 995ebay.com
3.
 
Canon 1D Mark IV 156 mm 157 mm 80 mm 1230 g 1500 Y Oct 2009 US$ 4 999ebay.com
4.
 
Canon 1D X 158 mm 168 mm 83 mm 1551 g 1120 Y Oct 2011 US$ 6 799ebay.com
5.
 
Leica S Typ 006 160 mm 120 mm 80 mm 1260 g .. Y Sep 2012 US$ 21 949ebay.com
6.
 
Nikon D3S 160 mm 157 mm 88 mm 1240 g 4200 Y Oct 2009 US$ 5 199ebay.com
7.
 
Nikon D40X 124 mm 94 mm 64 mm 522 g 520 n Mar 2007 US$ 729ebay.com
8.
 
Nikon D60 126 mm 94 mm 64 mm 522 g 500 n Jan 2008 US$ 629ebay.com
9.
 
Nikon D3000 126 mm 97 mm 64 mm 536 g 500 n Jul 2009 US$ 599ebay.com
10.
 
Olympus E-400 130 mm 91 mm 53 mm 435 g 500 n Sep 2006 US$ 699ebay.com
11.
 
Olympus E-410 130 mm 91 mm 53 mm 435 g 500 n Mar 2007 US$ 699ebay.com
12.
 
Olympus E-450 130 mm 91 mm 53 mm 440 g 500 n Mar 2009 US$ 499ebay.com
13.
 
Olympus E-520 136 mm 92 mm 68 mm 535 g 750 n May 2008 US$ 699ebay.com
14.
 
Olympus E-600 130 mm 94 mm 60 mm 535 g 500 n Aug 2009 US$ 449ebay.com
15.
 
Olympus E-620 130 mm 94 mm 60 mm 521 g 500 n Feb 2009 US$ 699ebay.com
16.
 
Panasonic L10 135 mm 96 mm 78 mm 556 g 450 n Aug 2007 US$ 599ebay.com
17.
 
Pentax 645Z 156 mm 117 mm 123 mm 1550 g 650 Y Apr 2014 US$ 8 499ebay.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 E-420 was launched at a markedly lower price (by 94 percent) than the 645D, which puts it into a different market segment. 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. 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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the 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-420 features a Four Thirds sensor and the Pentax 645D a medium format sensor. The sensor area in the 645D is 545 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-420 and Pentax 645D sensor measures

With 39.5MP, the 645D offers a higher resolution than the E-420 (10MP), but the 645D nevertheless has larger individual pixels (pixel pitch of 6.06μm versus 4.74μm for the E-420) due to its larger sensor. Moreover, the 645D is a much more recent model (by 2 years) than the E-420, 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 645D has no anti-alias filter installed, so that it can capture all the detail its 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 Olympus E-420 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-420 has a native sensitivity range from ISO 100 to ISO 1600. The Pentax 645D offers exactly the same ISO settings.

In terms of underlying technology, the E-420 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.

E-420 versus 645D MP

For many cameras, data on sensor performance has been reported by DXO Mark. 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 E-420 (overall score 26 points higher). The advantage is based on 3.1 bits higher color depth, 2.2 EV in additional dynamic range, and 1.3 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
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Olympus E-420 Four Thirds 10.0 3648 2736none21.510.452756
2.
 
Pentax 645D Medium Format 39.5 7264 5440none24.612.6126282
3.
 
Canon 1D Mark IV APS-H 16.0 4896 32641080/30p22.812.0132074
4.
 
Canon 1D X Full Frame 17.9 5184 34561080/30p23.811.8278682
5.
 
Leica S Typ 006 Medium Format 37.5 7500 5000none23.912.282476
6.
 
Nikon D3S Full Frame 12.1 4256 2832720/24p23.512.0325382
7.
 
Nikon D40X APS-C 10.0 3872 2592none22.411.451663
8.
 
Nikon D60 APS-C 10.0 3872 2592none22.511.456265
9.
 
Nikon D3000 APS-C 10.0 3872 2592none22.311.156362
10.
 
Olympus E-400 Four Thirds 10.0 3648 2736none21.010.612753
11.
 
Olympus E-410 Four Thirds 10.0 3648 2736none21.110.049451
12.
 
Olympus E-450 Four Thirds 10.0 3648 2736none21.510.551256
13.
 
Olympus E-520 Four Thirds 10.0 3648 2736none21.410.454855
14.
 
Olympus E-600 Four Thirds 12.2 4032 3024none21.510.354155
15.
 
Olympus E-620 Four Thirds 12.2 4032 3024none21.310.353655
16.
 
Panasonic L10 Four Thirds 10.0 3648 2736none21.310.842955
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.
The E-420 offers Live View, so that it can project the live image that the sensor receives onto the rear screen for framing. The 645D lacks this capability. Both cameras are still-image focused and cannot record videos.
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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. The E-420 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 viewfinder in the 645D offers a wider field of view (98%) than the one in the E-420 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the 645D 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 table below summarizes some of the other core capabilities of the Olympus E-420 and Pentax 645D in connection with corresponding information for a sample of similar 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-420optical n2.7 / 215 fixed n 1/4000s 3.5/s Y n
2.
 
Pentax 645Doptical Y3.0 / 921 fixed n 1/4000s 1.1/s n n
3.
 
Canon 1D Mark IVoptical Y3.0 / 920 fixed n 1/8000s 10.0/s n n
4.
 
Canon 1D Xoptical Y3.2 / 1040 fixed n 1/8000s 14.0/s n n
5.
 
Leica S Typ 006optical Y3.0 / 922 fixed n 1/4000s 1.5/s n n
6.
 
Nikon D3Soptical Y3.0 / 921 fixed n 1/8000s 11.0/s n n
7.
 
Nikon D40Xoptical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
8.
 
Nikon D60optical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
9.
 
Nikon D3000optical n3.0 / 230 fixed n 1/4000s 3.0/s Y n
10.
 
Olympus E-400optical n2.5 / 215 fixed n 1/4000s 3.0/s Y n
11.
 
Olympus E-410optical n2.5 / 215 fixed n 1/4000s 3.0/s Y n
12.
 
Olympus E-450optical n2.7 / 215 fixed n 1/4000s 3.5/s Y n
13.
 
Olympus E-520optical n2.7 / 215 fixed n 1/4000s 3.5/s Y Y
14.
 
Olympus E-600optical n2.7 / 230 swivel n 1/4000s 4.0/s Y Y
15.
 
Olympus E-620optical n2.7 / 230 swivel n 1/4000s 4.0/s Y Y
16.
 
Panasonic L10optical n2.5 / 207 swivel n 1/4000s 3.0/s Y n
17.
 
Pentax 645Zoptical Y3.2 / 1037 tilting n 1/4000s 3.0/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-420 has one, while the 645D does not. While the built-in flash of the E-420 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.

The E-420 writes its imaging data to Compact Flash or xD Picture cards, while the 645D 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-420 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
  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-420Y- / ----2.0---
2.
 
Pentax 645DYstereo / ----2.0---
3.
 
Canon 1D Mark IVYstereo / -Y-mini2.0---
4.
 
Canon 1D XYmono / -Y-mini2.0---
5.
 
Leica S Typ 006Y- / ---mini2.0---
6.
 
Nikon D3SYstereo / ---mini2.0---
7.
 
Nikon D40XY- / ----2.0---
8.
 
Nikon D60Y- / ----2.0---
9.
 
Nikon D3000Y- / ----2.0---
10.
 
Olympus E-400Y- / ----2.0---
11.
 
Olympus E-410Y- / ----2.0---
12.
 
Olympus E-450Y- / ----2.0---
13.
 
Olympus E-520Y- / ----2.0---
14.
 
Olympus E-600Y- / ----2.0---
15.
 
Olympus E-620Y- / ----2.0---
16.
 
Panasonic L10Y- / ----2.0---
17.
 
Pentax 645ZYstereo / monoY-mini3.0---

Studio photographers will appreciate that the Pentax 645D (unlike the E-420) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the E-420 and the 645D have been discontinued, but can regularly be found used on ebay. The 645D was replaced by the Pentax 645Z, while the E-420 does not have a direct successor. Further information on the features and operation of the E-420 and 645D can be found, respectively, in the Olympus E-420 Manual (free pdf) or the online Pentax 645D Manual.

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Review summary

So what is the bottom line? Is there a clear favorite between the Olympus E-420 and the Pentax 645D? Which camera is better? The listing below highlights the relative strengths of the two models.

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Reasons to prefer the Olympus E-420:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Faster burst: Shoots at higher frequency (3.5 vs 1.1 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (130x91mm vs 156x117mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 1040g or 70 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 (94 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in March 2008).

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Advantages of the Pentax 645D:

  • More detail: Has more megapixels (39.5 vs 10MP), which boosts linear resolution by 99%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (26 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (3.1 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (2.2 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (1.3 stops ISO advantage).
  • 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 (3.0" vs 2.7") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (921k vs 215k dots).
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Longer lasting: Gets more shots (800 versus 500) 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.
  • More modern: Reflects 2 years of technical progress since the E-420 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the 645D is the clear winner of the contest (16 : 7 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. A professional 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-420 07:16 645D

How about other alternatives? Do the specifications of the Olympus E-420 and the Pentax 645D 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 technical specifications can provide a useful overview of the capabilities of different cameras, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the E-420 or the 645D. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.

Expert reviews

This is why hands-on reviews by experts 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
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Olympus E-420..85/100..+ +4/54.5/5 Mar 2008 US$ 599ebay.com
2.
 
Pentax 645D5/5.......... Mar 2010 US$ 9 995ebay.com
3.
 
Canon 1D Mark IV5/5....89/100.... Oct 2009 US$ 4 999ebay.com
4.
 
Canon 1D X5/5......4.5/54.5/5 Oct 2011 US$ 6 799ebay.com
5.
 
Leica S Typ 006............ Sep 2012 US$ 21 949ebay.com
6.
 
Nikon D3S5/5....89/1004.5/55/5 Oct 2009 US$ 5 199ebay.com
7.
 
Nikon D40X..79/100..+ +4/54/5 Mar 2007 US$ 729ebay.com
8.
 
Nikon D60..80/100..+ +4/54.5/5 Jan 2008 US$ 629ebay.com
9.
 
Nikon D3000..+..72/1004/54.5/5 Jul 2009 US$ 599ebay.com
10.
 
Olympus E-400..85/100....4/54/5 Sep 2006 US$ 699ebay.com
11.
 
Olympus E-410..86/100..+ +4/54.5/5 Mar 2007 US$ 699ebay.com
12.
 
Olympus E-450........4/54/5 Mar 2009 US$ 499ebay.com
13.
 
Olympus E-520..87/100..+ +4.5/54.5/5 May 2008 US$ 699ebay.com
14.
 
Olympus E-600..........4.5/5 Aug 2009 US$ 449ebay.com
15.
 
Olympus E-6203/588/100..72/1004.5/55/5 Feb 2009 US$ 699ebay.com
16.
 
Panasonic L10..85/100..+3.5/54/5 Aug 2007 US$ 599ebay.com
17.
 
Pentax 645Z5/5..3.5/5..4.5/55/5 Apr 2014 US$ 8 499ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted 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. Hence, a score should always be seen in the context of the camera's market launch date and its price, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. 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? In case you would like to check on the differences and similarities of other camera models, just use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Olympus E-420 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 Olympus E-420 Pentax 645D
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Four Thirds lenses Pentax 645 mount lenses
    Launch Date March 2008 March 2010
    Launch Price USD 599 USD 9,995
    Sensor Specs Olympus E-420 Pentax 645D
    Sensor Technology CMOS CCD
    Sensor Format Four Thirds Sensor Medium Format Sensor
    Sensor Size 17.3 x 13.0 mm 44.0 x 33.0 mm
    Sensor Area 224.9 mm2 1452 mm2
    Sensor Diagonal 21.6 mm 55 mm
    Crop Factor 2.0x 0.79x
    Sensor Resolution 10 Megapixels 39.5 Megapixels
    Image Resolution 3648 x 2736 pixels 7264 x 5440 pixels
    Pixel Pitch 4.74 μm 6.06 μm
    Pixel Density 4.44 MP/cm2 2.72 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability no Video no Video
    ISO Setting 100 - 1,600 ISO 100 - 1,600 ISO
    Image Processor TruePic III PRIME II
    DXO Sensor Quality (score) 56 82
    DXO Color Depth (bits) 21.5 24.6
    DXO Dynamic Range (EV) 10.4 12.6
    DXO Low Light (ISO) 527 1262
    Screen Specs Olympus E-420 Pentax 645D
    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 2.7inch 3.0inch
    LCD Resolution 215k dots 921k dots
    LCD Attachment Fixed screen Fixed screen
    Shooting Specs Olympus E-420 Pentax 645D
    Focus System Phase-detect AF Phase-detect AF
    Continuous Shooting 3.5 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 CF or XD cards SDXC cards
    Single or Dual Card Slots Dual card slots Dual card slots
    Connectivity Specs Olympus E-420 Pentax 645D
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port no HDMI no HDMI
    Wifi Support no Wifi no Wifi
    Body Specs Olympus E-420 Pentax 645D
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Olympus BLS-1 Pentax D-LI90
    Battery Life (CIPA)500 shots per charge800 shots per charge
    Body Dimensions 130 x 91 x 53 mm
    (5.1 x 3.6 x 2.1 in)
    156 x 117 x 119 mm
    (6.1 x 4.6 x 4.7 in)
    Camera Weight 440 g (15.5 oz) 1480 g (52.2 oz)
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