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Canon 100D vs Panasonic GX1

The Canon EOS 100D (called Canon SL1 in some regions) and the Panasonic Lumix DMC-GX1 are two digital cameras that were revealed to the public, respectively, in March 2013 and November 2011. The 100D is a DSLR, while the GX1 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (100D) and a Four Thirds (GX1) sensor. The Canon has a resolution of 17.9 megapixels, whereas the Panasonic provides 15.8 MP.

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

Headline Specifications
Canon 100D versus Panasonic GX1
Canon 100D Panasonic GX1
Digital single lens reflex Mirrorless system camera
Canon EF mount lenses Micro Four Thirds lenses
17.9 MP, APS-C Sensor 15.8 MP, Four Thirds Sensor
1080/30p Video 1080/60p Video
ISO 100-12,800 (100 - 25,600) ISO 160-12,800
Optical viewfinder Viewfinder optional
3.0 LCD, 1040k dots 3.0 LCD, 460k dots
Fixed touchscreen Fixed touchscreen
4.9 shutter flaps per second 4.2 shutter flaps per second
380 shots per battery charge320 shots per battery charge
117 x 91 x 69 mm, 407 g 116 x 68 x 39 mm, 318 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 100D and the Panasonic Lumix DMC-GX1? 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 Canon 100D and the Panasonic GX1 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 size dimensions are rounded to the nearest millimeter.

The 100D can be obtained in two different colors (black, white), while the GX1 is only available in black.

Size Canon 100D vs Panasonic GX1
Compare 100D versus GX1 top
Comparison 100D or GX1 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic GX1 is notably smaller (26 percent) than the Canon 100D. Moreover, the GX1 is markedly lighter (22 percent) than the 100D. In this context, it is worth noting that neither the 100D nor the GX1 are weather-sealed.

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. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Canon EF Lens Catalog (100D) and the Micro Four Thirds Lens Catalog (GX1). Mirrorless cameras, such as the GX1, have moreover the advantage that they can use many lenses from other systems via adapters, as they have a relatively short flange to focal plane distance.

Concerning battery life, the 100D gets 380 shots out of its LP-E12 battery, while the GX1 can take 320 images on a single charge of its DMW-BLD10 power pack.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also 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 1
Weather
Sealing
Camera
Launch 2
Launch
Price (USD)
Street
Price
 
Canon 100D 4.6 in 3.6 in 2.7 in 14.4 oz 380 n Mar 2013 549i
 
Panasonic GX1 4.6 in 2.7 in 1.5 in 11.2 oz 320 n Nov 2011 699i
 
Canon 4000D 5.1 in 4.0 in 3.0 in 15.4 oz 500 n Feb 2018 399 i
 
Canon 200D 4.8 in 3.7 in 2.8 in 16.0 oz 650 n Jun 2017 549i
 
Canon 7D II 5.9 in 4.4 in 3.1 in 32.1 oz 670 Y Sep 2014 1,799 i
 
Canon 1200D 5.1 in 3.9 in 3.1 in 16.9 oz 500 n Feb 2014 449i
 
Canon 700D 5.2 in 3.9 in 3.1 in 20.5 oz 440 n Mar 2013 649i
 
Canon G16 4.3 in 3.0 in 1.6 in 12.6 oz 360 n Aug 2013 549 i
 
Canon 650D 5.2 in 3.9 in 3.1 in 20.3 oz 440 n Jun 2012 849i
 
Canon M 4.3 in 2.6 in 1.3 in 10.5 oz 230 n Jul 2012 599i
 
Canon 600D 5.2 in 3.9 in 3.1 in 20.1 oz 440 n Feb 2011 599i
 
Panasonic G6 4.8 in 3.3 in 2.8 in 13.8 oz 340 n Apr 2013 599i
 
Panasonic GM1 3.9 in 2.2 in 1.2 in 7.2 oz 230 n Oct 2013 749i
 
Panasonic G5 4.7 in 3.3 in 2.8 in 14.0 oz 320 n Jul 2012 599i
 
Panasonic G3 4.5 in 3.3 in 1.9 in 11.9 oz 270 n May 2011 599i
 
Panasonic GH2 4.9 in 3.5 in 3.0 in 15.6 oz 330 n Sep 2010 899i
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 manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The 100D was launched at a somewhat lower price (by 21 percent) than the GX1, which makes it more attractive for photographers on a tight budget. 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.

Sensor comparison

The size of the imaging sensor is a crucial determinant of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units 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 Canon 100D features an APS-C sensor and the Panasonic GX1 a Four Thirds sensor. The sensor area in the GX1 is 32 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 2.0. The sensor in the 100D has a native 3:2 aspect ratio, while the one in the GX1 offers a 4:3 aspect.

In terms of underlying technology, both cameras are build around CMOS sensors.

Canon 100D and Panasonic GX1 sensor measures

With 17.9MP, the 100D offers a higher resolution than the GX1 (15.8MP), but the 100D nevertheless has larger individual pixels (pixel pitch of 4.31μm versus 3.77μm for the GX1) due to its larger sensor. Moreover, the 100D is a somewhat more recent model (by 1 year and 4 months) than the GX1, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels.

The resolution advantage of the Canon 100D implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 100D for good quality output (200 dots per inch) amounts to 25.9 x 17.3 inches or 65.8 x 43.9 cm, for very good quality (250 dpi) 20.7 x 13.8 inches or 52.7 x 35.1 cm, and for excellent quality (300 dpi) 17.3 x 11.5 inches or 43.9 x 29.3 cm. The corresponding values for the Panasonic GX1 are 23 x 17.2 inches or 58.3 x 43.8 cm for good quality, 18.4 x 13.8 inches or 46.7 x 35 cm for very good quality, and 15.3 x 11.5 inches or 38.9 x 29.2 cm for excellent quality prints.

The 100D has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Canon EOS 100D has a native sensitivity range from ISO 100 to ISO 12800, which can be extended to ISO 100-25600. The corresponding ISO settings for the Panasonic Lumix DMC-GX1 are ISO 160 to ISO 12800 (no boost).

100D versus GX1 MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). Of the two cameras under review, the 100D has a notably higher overall DXO score than the GX1 (overall score 8 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 1 bits higher color depth, 0.7 EV in additional dynamic range, and 0.3 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
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
 
Canon 100D APS-C 17.9 5184 34561080/30p21.811.384363
 
Panasonic GX1 Four Thirds 15.8 4592 34481080/60p20.810.670355
 
Canon 4000D APS-C 17.9 5184 34561080/30p21.911.469563
 
Canon 200D APS-C 24.0 6000 40001080/60p23.613.4104179
 
Canon 7D II APS-C 20.0 5472 36481080/60p22.411.8108270
 
Canon 1200D APS-C 17.9 5184 34561080/30p21.911.372463
 
Canon 700D APS-C 17.9 5184 34561080/30p21.711.268161
 
Canon G16 1/1.7 12.0 4000 30001080/60p21.011.723054
 
Canon 650D APS-C 17.9 5184 34561080/30p21.711.272262
 
Canon M APS-C 17.9 5184 34561080/30p22.111.282765
 
Canon 600D APS-C 17.9 5184 34561080/30p22.111.579365
 
Panasonic G6 Four Thirds 15.9 4608 34561080/60p21.311.563961
 
Panasonic GM1 Four Thirds 15.8 4592 34481080/60i22.311.766066
 
Panasonic G5 Four Thirds 15.9 4608 34561080/60p........
 
Panasonic G3 Four Thirds 15.8 4592 34481080/60i21.010.666756
 
Panasonic GH2 Four Thirds 15.9 4608 34561080/60i21.211.365560

Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the GX1 provides a faster frame rate than the 100D. It can shoot movie footage at 1080/60p, while the Canon is limited to 1080/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the 100D has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the GX1 relies on live view and the rear LCD for framing. That said, the GX1 can be equipped with an optional viewfinder – the DMW-LVF2. The table below summarizes some of the other core capabilities of the Canon 100D and Panasonic GX1 in connection with corresponding information for a sample of similar cameras.

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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
 
Canon 100Doptical n 3.0 1040 fixed Y 1/4000s 4.9 Y n
 
Panasonic GX1optional n 3.0 460 fixed Y 1/4000s 4.2 Y n
 
Canon 4000Doptical n 2.7 230 fixed n 1/4000s 3.0 Y n
 
Canon 200Doptical n 3.0 1040 swivel Y 1/4000s 5.0 Y n
 
Canon 7D IIoptical Y 3.0 1040 fixed n 1/8000s 10.0 Y n
 
Canon 1200Doptical n 3.0 460 fixed n 1/4000s 3.0 Y n
 
Canon 700Doptical n 3.0 1040 swivel Y 1/4000s 5.0 Y n
 
Canon G16optical n 3.0 922 fixed n 1/4000s 2.2 Y Y
 
Canon 650Doptical n 3.0 1040 swivel Y 1/4000s 5.0 Y n
 
Canon Mnone n 3.0 1040 fixed Y 1/4000s 4.3 n n
 
Canon 600Doptical n 3.0 1040 swivel n 1/4000s 3.7 Y n
 
Panasonic G61440 n 3.0 1036 swivel Y 1/4000s 7.0 Y n
 
Panasonic GM1none n 3.0 1036 fixed Y 1/500s 5.0 Y n
 
Panasonic G51440 n 3.0 920 swivel Y 1/4000s 6.0 Y n
 
Panasonic G31440 n 3.0 460 swivel Y 1/4000s 4.0 Y n
 
Panasonic GH21534 n 3.0 460 swivel n 1/4000s 3.0 Y n

Concerning the storage of imaging data, both the 100D and the GX1 write their files to SDXC cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

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 Canon EOS 100D and Panasonic Lumix DMC-GX1 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
 
Canon 100DYmonomonoY-mini2.0---
 
Panasonic GX1Ystereomono--mini2.0---
 
Canon 4000DYmonomono--mini2.0YY-
 
Canon 200DYstereomonoY-mini2.0YYY
 
Canon 7D IIYstereomonoYYmini3.0---
 
Canon 1200DYmonomono--mini2.0---
 
Canon 700DYstereomonoY-mini2.0---
 
Canon G16Ystereomono--mini2.0Y--
 
Canon 650DYstereomonoY-mini2.0---
 
Canon MYstereomonoY-mini2.0---
 
Canon 600DYmonomonoY-mini2.0---
 
Panasonic G6YstereomonoY-mini2.0YY-
 
Panasonic GM1-stereomono--micro2.0Y--
 
Panasonic G5Ystereomono--mini2.0---
 
Panasonic G3Ystereomono--mini2.0---
 
Panasonic GH2YstereomonoY-mini2.0---

It is notable that the 100D has a microphone port, which is missing on the GX1. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.

Both the 100D and the GX1 have been discontinued, but can regularly be found used on eBay. The GX1 was replaced by the Panasonic GX7, while the 100D was followed by the Canon 200D. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon and Panasonic websites.

Review summary

So what is the bottom line? Is there a clear favorite between the Canon 100D and the Panasonic GX1? Which camera is better? The listing below highlights the relative strengths of the two models.

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Advantages of the Canon EOS 100D:

  • More detail: Offers more megapixels (17.9 vs 15.8MP) with a 8% higher linear resolution.
  • Better image quality: Scores markedly higher (8 points) in the DXO overall assessment.
  • More dynamic range: Captures a larger spectrum of light and dark details (0.7 EV of extra DR).
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • Easier framing: Has an optical viewfinder for image composition and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1040k vs 460k dots).
  • Faster burst: Shoots at higher frequency (4.9 vs 4.2 flaps/sec) to capture the decisive moment.
  • Longer lasting: Can take more shots (380 versus 320) on a single battery charge.
  • More affordable: Was introduced into a lower priced segment (21 percent cheaper at launch).
  • More modern: Is somewhat more recent (announced 1 year and 4 months after the GX1).

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Reasons to prefer the Panasonic Lumix DMC-GX1:

  • Better video: Provides higher movie framerates (1080/60p versus 1080/30p).
  • More compact: Is smaller (116x68mm vs 117x91mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 89g or 22 percent) and is thus easier to take along.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • More heavily discounted: Has been on the market for longer (launched in November 2011).

If the count of individual advantages (bullet points above) is taken as a guide, the 100D is the clear winner of the match-up (11 : 5 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 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.

100D 11:05 GX1

How about other alternatives? Do the specifications of the Canon 100D and the Panasonic GX1 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains incomplete and does no justice, for example, to the way the 100D or the GX1 perform in practice. 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 (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
 
Canon 100D+78/1004/54/54/5 Mar 2013 549i
 
Panasonic GX1+77/1004.5/54.5/54.5/5 Nov 2011 699i
 
Canon 4000Do..3.5/5..3.5/5 Feb 2018 399 i
 
Canon 200D+ +78/1004.5/54.5/54.5/5 Jun 2017 549i
 
Canon 7D II+84/1004/55/54.5/5 Sep 2014 1,799 i
 
Canon 1200D+..4/54/54.5/5 Feb 2014 449i
 
Canon 700D..76/1004.5/54.5/54.5/5 Mar 2013 649i
 
Canon G16+..4.5/54.5/54.5/5 Aug 2013 549 i
 
Canon 650D+ +77/1004.5/54.5/54.5/5 Jun 2012 849i
 
Canon M+..4/53.5/54/5 Jul 2012 599i
 
Canon 600Do77/1004.5/55/54.5/5 Feb 2011 599i
 
Panasonic G6+ +..5/5..4.5/5 Apr 2013 599i
 
Panasonic GM1+78/1005/54.5/54.5/5 Oct 2013 749i
 
Panasonic G5+ +..4.5/54.5/54.5/5 Jul 2012 599i
 
Panasonic G3+ +75/1004.5/54.5/55/5 May 2011 599i
 
Panasonic GH2+ +79/1004.5/54.5/55/5 Sep 2010 899i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.

Canon 100D:
Check Ebay offers
Panasonic GX1:
Check Ebay offers

Other camera comparisons

Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Canon 100D vs Panasonic GX1

    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 Canon 100D Panasonic GX1
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Canon EF mount lenses Micro Four Thirds lenses
    Launch Date March 2013 November 2011
    Launch Price USD 549 USD 699
    Sensor Specs Canon 100D Panasonic GX1
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor Four Thirds Sensor
    Sensor Size 22.3 x 14.9 mm 17.3 x 13.0 mm
    Sensor Area 332.27 mm2 224.9 mm2
    Sensor Diagonal 26.8 mm 21.6 mm
    Crop Factor 1.6x 2.0x
    Sensor Resolution 17.9 Megapixels 15.8 Megapixels
    Image Resolution 5184 x 3456 pixels 4592 x 3448 pixels
    Pixel Pitch 4.31 μm 3.77 μm
    Pixel Density 5.39 MP/cm2 7.04 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/30p Video 1080/60p Video
    ISO Setting 100 - 12,800 ISO 160 - 12,800 ISO
    ISO Boost 100 - 25,600 ISO no Enhancement
    Image Processor DIGIC 5 Venus FHD
    DXO Sensor Quality (score) 63 55
    DXO Color Depth (bits) 21.8 20.8
    DXO Dynamic Range (EV) 11.3 10.6
    DXO Low Light (ISO) 843 703
    Screen Specs Canon 100D Panasonic GX1
    Viewfinder Type Optical viewfinder Viewfinder optional
    Viewfinder Field of View 95%
    Viewfinder Magnification 0.54x
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1040k dots 460k dots
    LCD Attachment Fixed screen Fixed screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Canon 100D Panasonic GX1
    Focus System Phase-detect AF Contrast-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/4000s
    Continuous Shooting 4.9 shutter flaps/s 4.2 shutter flaps/s
    Fill Flash Build-in Flash Build-in Flash
    Storage Medium SDXC cards SDXC cards
    Second Storage Option Single card slot Single card slot
    UHS card support UHS-I UHS-I
    Connectivity Specs Canon 100D Panasonic GX1
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI mini HDMI
    Microphone Port External MIC port no MIC socket
    Wifi Support no Wifi no Wifi
    Body Specs Canon 100D Panasonic GX1
    Battery Type LP-E12 DMW-BLD10
    Battery Life (CIPA)380 shots per charge320 shots per charge
    Body Dimensions 117 x 91 x 69 mm
    (4.6 x 3.6 x 2.7 in)
    116 x 68 x 39 mm
    (4.6 x 2.7 x 1.5 in)
    Camera Weight 407 g (14.4 oz) 318 g (11.2 oz)

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