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Panasonic G1 vs Pentax 645D

The Panasonic Lumix DMC-G1 and the Pentax 645D are two digital cameras that were revealed to the public, respectively, in September 2008 and March 2010. The G1 is a mirrorless interchangeable lens camera, while the 645D is a DSLR. The cameras are based on a Four Thirds (G1) and a medium format (645D) sensor. The Panasonic 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
Panasonic G1 versus Pentax 645D
Panasonic G1 Pentax 645D
Mirrorless system camera Digital single lens reflex
Micro Four Thirds lenses Pentax 645 mount lenses
12 MP, Four Thirds Sensor 39.5 MP, Medium Format Sensor
no Video no Video
ISO 100-1,600 (100 - 3,200) ISO 100-1,600
Electronic viewfinder (1440k dots) Optical viewfinder
3.0 LCD, 460k dots 3.0 LCD, 921k dots
Swivel screen (not touch-sensitive) Fixed screen (not touch-sensitive)
3 shutter flaps per second 1.1 shutter flaps per second
not weather sealedWeathersealed body
410 shots per battery charge800 shots per battery charge
124 x 84 x 45 mm, 360 g 156 x 117 x 119 mm, 1480 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DMC-G1 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 Panasonic G1 and the Pentax 645D is provided 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 width, height and depth dimensions are rounded to the nearest millimeter.

Size Panasonic G1 vs Pentax 645D
Compare G1 versus 645D top
Comparison G1 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 (75 percent) than the Panasonic G1. Moreover, the 645D is substantially heavier (311 percent) than the G1. It is noteworthy in this context that the 645D is splash and dust-proof, while the G1 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 G1 gets 410 shots out of its DMW-BLB13 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 would like to visualize and compare a different camera combination, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.

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Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life 1
Weather
Sealing
Camera
Launch 2
Launch
Price (USD)
Street
Price
 
Panasonic G1 4.9 in 3.3 in 1.8 in 12.7 oz 410 n Sep 2008 599i
 
Pentax 645D 6.1 in 4.6 in 4.7 in 52.2 oz 800 Y Mar 2010 9,995i
 
Canon 1D X 6.2 in 6.6 in 3.3 in 54.7 oz 1120 Y Oct 2011 6,799i
 
Canon 1D Mark IV 6.1 in 6.2 in 3.1 in 43.4 oz 1500 Y Oct 2009 4,999i
 
Leica S Typ 006 6.3 in 4.7 in 3.1 in 44.4 oz .. Y Sep 2012 21,950i
 
Nikon D3S 6.3 in 6.2 in 3.5 in 43.7 oz 4200 Y Oct 2009 5,199i
 
Olympus E-410 5.1 in 3.6 in 2.1 in 15.3 oz 500 n Mar 2007 699i
 
Panasonic GF6 4.4 in 2.6 in 1.5 in 11.4 oz 340 n Apr 2013 499i
 
Panasonic GF5 4.3 in 2.6 in 1.5 in 9.4 oz 360 n Apr 2012 499i
 
Panasonic GF3 4.3 in 2.6 in 1.3 in 9.3 oz 300 n Jun 2011 549i
 
Panasonic G10 4.9 in 3.3 in 2.9 in 13.7 oz 380 n Mar 2010 499i
 
Panasonic G2 4.9 in 3.3 in 2.9 in 15.1 oz 360 n Mar 2010 599i
 
Panasonic GF2 4.4 in 2.7 in 1.3 in 10.9 oz 300 n Nov 2010 549i
 
Panasonic GF1 4.7 in 2.8 in 1.4 in 13.6 oz 380 n Sep 2009 749i
 
Panasonic GH1 4.9 in 3.5 in 1.8 in 13.6 oz 300 n Mar 2009 899i
 
Panasonic L10 5.3 in 3.8 in 3.1 in 19.6 oz 450 n Aug 2007 599i
 
Pentax 645Z 6.1 in 4.6 in 4.8 in 54.7 oz 650 Y Apr 2014 8,499 i
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
(1) Number of images that can be taken on a full battery charge according to the CIPA-standard; (2) Official announcement.

The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The G1 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.

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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. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the 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 Panasonic G1 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.

Panasonic G1 and Pentax 645D sensor measures

With 39.5MP, the 645D offers a higher resolution than the G1 (12MP), but the 645D nevertheless has larger individual pixels (pixel pitch of 6.06μm versus 4.33μm for the G1) due to its larger sensor. Moreover, the 645D is a somewhat more recent model (by 1 year and 5 months) than the G1, and its sensor might 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 Panasonic G1 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 Panasonic Lumix DMC-G1 has a native sensitivity range from ISO 100 to ISO 1600, which can be extended to ISO 100-3200. The corresponding ISO settings for the Pentax 645D are ISO 100 to ISO 1600 (no boost).

G1 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 G1 (overall score 29 points higher). The advantage is based on 3.5 bits higher color depth, 2.3 EV in additional dynamic range, and 1.4 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
 
Panasonic G1 Four Thirds 12.0 4000 3000none21.110.346353
 
Pentax 645D Medium Format 39.5 7264 5440none24.612.6126282
 
Canon 1D X Full Frame 17.9 5184 34561080/30p23.811.8278682
 
Canon 1D Mark IV APS-H 16.0 4896 32641080/30p22.812.0132074
 
Leica S Typ 006 Medium Format 37.5 7500 5000none23.912.282476
 
Nikon D3S Full Frame 12.1 4256 2832720/24p23.512.0325382
 
Olympus E-410 Four Thirds 10.0 3648 2736none21.110.049451
 
Panasonic GF6 Four Thirds 15.8 4592 34481080/60i20.710.662254
 
Panasonic GF5 Four Thirds 12.0 4000 30001080/60i21.411.661861
 
Panasonic GF3 Four Thirds 12.0 4000 30001080/60i20.610.045849
 
Panasonic G10 Four Thirds 12.0 4000 3000720/30p21.210.141152
 
Panasonic G2 Four Thirds 12.0 4000 3000720/30p21.210.349353
 
Panasonic GF2 Four Thirds 12.0 4000 30001080/60i21.210.350654
 
Panasonic GF1 Four Thirds 12.0 4000 3000720/30p21.210.351354
 
Panasonic GH1 Four Thirds 12.0 4000 30001080/24p21.611.677264
 
Panasonic L10 Four Thirds 10.0 3648 2736none21.310.842955
 
Pentax 645Z Medium Format 51.1 8256 61921080/60i26.014.74505101
The G1 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. For example, the G1 has an electronic viewfinder (1440k dots), while the 645D has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinder in the G1 offers a wider field of view (100%) than the one in the 645D (98%), so that a larger proportion of the captured image is visible in the finder. On the other hand, the viewfinder of the 645D has a higher magnification (0.78x vs 0.70x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Panasonic G1 and Pentax 645D 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
Size
(inch)
LCD
Resolution
(000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
 
Panasonic G11440 n 3.0 460 swivel n 1/4000s 3.0 Y n
 
Pentax 645Doptical Y 3.0 921 fixed n 1/4000s 1.1 n n
 
Canon 1D Xoptical Y 3.2 1040 fixed n 1/8000s 14.0 n n
 
Canon 1D Mark IVoptical Y 3.0 920 fixed n 1/8000s 10.0 n n
 
Leica S Typ 006optical Y 3.0 922 fixed n 1/4000s 1.5 n n
 
Nikon D3Soptical Y 3.0 921 fixed n 1/8000s 11.0 n n
 
Olympus E-410optical n 2.5 215 fixed n 1/4000s 3.0 Y n
 
Panasonic GF6none n 3.0 1040 tilting Y 1/4000s 4.2 Y n
 
Panasonic GF5none n 3.0 920 fixed Y 1/4000s 4.0 Y n
 
Panasonic GF3none n 3.0 460 fixed Y 1/4000s 3.2 Y n
 
Panasonic G10202 n 3.0 460 fixed n 1/4000s 2.6 Y n
 
Panasonic G21440 n 3.0 460 swivel Y 1/4000s 2.6 Y n
 
Panasonic GF2optional n 3.0 460 fixed Y 1/4000s 2.6 Y n
 
Panasonic GF1optional n 3.0 460 fixed n 1/4000s 3.0 Y n
 
Panasonic GH11440 n 3.0 460 swivel n 1/4000s 3.0 Y n
 
Panasonic L10optical n 2.5 207 swivel n 1/4000s 3.0 Y n
 
Pentax 645Zoptical Y 3.2 1037 tilting n 1/4000s 3.0 n n

One difference between the cameras concerns the presence of an on-board flash. The G1 has one, while the 645D does not. While the built-in flash of the G1 is not very powerful, it can at times be useful as a fill-in light.

The G1 has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the 645D does not have a selfie-screen.

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 G1 writes its imaging data to SDHC cards, while the 645D uses SDXC cards. The 645D features dual card slots, which can be very useful in case a memory card fails. In contrast, the G1 only has one slot.

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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 Panasonic Lumix DMC-G1 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
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
 
Panasonic G1Y----mini2.0---
 
Pentax 645DYstereo----2.0---
 
Canon 1D XYmono-Y-mini2.0---
 
Canon 1D Mark IVYstereo-Y-mini2.0---
 
Leica S Typ 006Y----mini2.0---
 
Nikon D3SYstereo---mini2.0---
 
Olympus E-410Y-----2.0---
 
Panasonic GF6-stereomono--mini2.0YY-
 
Panasonic GF5-stereomono--mini2.0---
 
Panasonic GF3-stereomono--mini2.0---
 
Panasonic G10Ymono---mini2.0---
 
Panasonic G2Ystereomono--mini2.0---
 
Panasonic GF2Ystereomono--mini2.0---
 
Panasonic GF1Ymonomono--mini2.0---
 
Panasonic GH1Ystereo-Y-mini2.0---
 
Panasonic L10Y-----2.0---
 
Pentax 645ZYstereomonoY-mini3.0---

Studio photographers will appreciate that the Pentax 645D (unlike the G1) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the G1 and the 645D have been discontinued, but can regularly be found used on eBay. The G1 was replaced by the Panasonic G2, while the 645D was followed by the Pentax 645Z. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Panasonic and Pentax websites.

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Review summary

So how do things add up? Is there a clear favorite between the Panasonic G1 and the Pentax 645D? Which camera is better? The listing below highlights the relative strengths of the two models.

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Arguments in favor of the Panasonic Lumix DMC-G1:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More complete view: Has a viewfinder with a larger field of view (100% vs 98%).
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (3 vs 1.1 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (124x84mm vs 156x117mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 1120g or 76 percent) and hence easier to carry around.
  • More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
  • 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 on the market for longer (launched in September 2008).

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Advantages of the Pentax 645D:

  • More detail: Has more megapixels (39.5 vs 12MP), which boosts linear resolution by 82%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (29 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 (2.3 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (1.4 stops ISO advantage).
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.70x).
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • 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.
  • Longer lasting: Gets more shots (800 versus 410) 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 modern: Was introduced somewhat (1 year and 5 months) more recently.

If the number of relative strengths (bullet points above) is taken as a guide, the 645D is the clear winner of the contest (16 : 12 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 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.

G1 12:16 645D

How about other alternatives? Do the specifications of the Panasonic G1 and the Pentax 645D place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens 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 remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the G1 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 (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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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Review Scores
  Camera
Model
camera
  labs  
dp
review  
ephoto
  zine  
imaging
resource
photography
  blog  
Camera
Launch
Launch
Price (USD)
Street
Price
 
Panasonic G1+ +70/1004/54.5/54.5/5 Sep 2008 599i
 
Pentax 645D......4.5/5.. Mar 2010 9,995i
 
Canon 1D X....4.5/54.5/54.5/5 Oct 2011 6,799i
 
Canon 1D Mark IV..89/100..5/5.. Oct 2009 4,999i
 
Leica S Typ 006.......... Sep 2012 21,950i
 
Nikon D3S..89/1004.5/55/55/5 Oct 2009 5,199i
 
Olympus E-41086/100+ +4/5o4.5/5 Mar 2007 699i
 
Panasonic GF6+ +..4.5/5..4.5/5 Apr 2013 499i
 
Panasonic GF5....4.5/54/54.5/5 Apr 2012 499i
 
Panasonic GF382/10071/1004.5/54.5/54/5 Jun 2011 549i
 
Panasonic G10..70/1004/5..4/5 Mar 2010 499i
 
Panasonic G2..72/1004/54/54.5/5 Mar 2010 599i
 
Panasonic GF282/10070/1004.5/54.5/54.5/5 Nov 2010 549i
 
Panasonic GF185/10069/1004.5/54.5/54.5/5 Sep 2009 749i
 
Panasonic GH1+ +72/1004.5/55/54.5/5 Mar 2009 899i
 
Panasonic L1085/100+3.5/5o4/5 Aug 2007 599i
 
Pentax 645Z....4.5/55/55/5 Apr 2014 8,499 i
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. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Panasonic G1:
Check Ebay offers
Pentax 645D:
Check Ebay offers

Other camera comparisons

Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just 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: Panasonic G1 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 Panasonic G1 Pentax 645D
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Micro Four Thirds lenses Pentax 645 mount lenses
    Launch Date September 2008 March 2010
    Launch Price USD 599 USD 9,995
    Sensor Specs Panasonic G1 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 12 Megapixels 39.5 Megapixels
    Image Resolution 4000 x 3000 pixels 7264 x 5440 pixels
    Pixel Pitch 4.33 μm 6.06 μm
    Pixel Density 5.34 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
    ISO Boost 100 - 3,200 ISO no Enhancement
    Image Processor Venus HD PRIME II
    DXO Sensor Quality (score) 53 82
    DXO Color Depth (bits) 21.1 24.6
    DXO Dynamic Range (EV) 10.3 12.6
    DXO Low Light (ISO) 463 1262
    Screen Specs Panasonic G1 Pentax 645D
    Viewfinder Type Electronic viewfinder Optical viewfinder
    Viewfinder Field of View 100% 98%
    Viewfinder Magnification 0.70x 0.78x
    Viewfinder Resolution 1440k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 460k dots 921k dots
    LCD Attachment Swivel screen Fixed screen
    Shooting Specs Panasonic G1 Pentax 645D
    Focus System Contrast-detect AF Phase-detect AF
    Continuous Shooting 3 shutter flaps/s 1.1 shutter flaps/s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Fill Flash Build-in Flash no On-Board Flash
    Storage Medium SDHC cards SDXC cards
    Second Storage Option Single card slot Dual card slots
    UHS card support no no
    Connectivity Specs Panasonic G1 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 Panasonic G1 Pentax 645D
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type DMW-BLB13 D-LI90
    Battery Life (CIPA)410 shots per charge800 shots per charge
    Body Dimensions 124 x 84 x 45 mm
    (4.9 x 3.3 x 1.8 in)
    156 x 117 x 119 mm
    (6.1 x 4.6 x 4.7 in)
    Camera Weight 360 g (12.7 oz) 1480 g (52.2 oz)

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