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Canon SX420 vs Panasonic G1

The Canon PowerShot SX420 IS and the Panasonic Lumix DMC-G1 are two digital cameras that were officially introduced, respectively, in January 2016 and September 2008. The SX420 is a fixed lens compact, while the G1 is a mirrorless interchangeable lens camera. The cameras are based on a 1/2.3-inch (SX420) and a Four Thirds (G1) sensor. The Canon has a resolution of 19.9 megapixels, whereas the Panasonic provides 12 MP.

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

Headline Specifications
Canon SX420 versus Panasonic G1
Canon SX420 Panasonic G1
Fixed lens compact camera Mirrorless system camera
24-1008mm f/3.5-6.6 Micro Four Thirds lenses
19.9 MP, 1/2.3" Sensor 12 MP, Four Thirds Sensor
720/25p Video no Video
ISO 100-1,600 ISO 100-1,600 (100 - 3,200)
No viewfinder, LCD framing Electronic viewfinder (1440k dots)
3.0 LCD, 230k dots 3.0 LCD, 460k dots
Fixed screen (not touch-sensitive) Swivel screen (not touch-sensitive)
0.5 shutter flaps per second 3 shutter flaps per second
195 shots per battery charge410 shots per battery charge
104 x 69 x 85 mm, 325 g 124 x 84 x 45 mm, 360 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot SX420 IS and the Panasonic Lumix DMC-G1? 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 SX420 and the Panasonic G1 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 dimensions are rounded to the nearest millimeter.

The SX420 can be obtained in two different colors (black, red), while the G1 is only available in black.

Size Canon SX420 vs Panasonic G1
Compare SX420 versus G1 top
Comparison SX420 or G1 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic G1 is considerably larger (45 percent) than the Canon SX420. In this context, it is worth noting that neither the SX420 nor the G1 are weather-sealed.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the SX420 has a lens built in, whereas the G1 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the G1 and their specifications in the Micro Four Thirds Lens Catalog.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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
 
Canon SX420 4.1 in 2.7 in 3.3 in 11.5 oz 195 n Jan 2016 299 i
 
Panasonic G1 4.9 in 3.3 in 1.8 in 12.7 oz 410 n Sep 2008 599i
 
Canon SX740 4.3 in 2.5 in 1.6 in 10.5 oz 265 n Jul 2018 399 i
 
Canon SX730 4.3 in 2.5 in 1.6 in 10.6 oz 250 n Apr 2017 399i
 
Canon G7 X Mark II 4.2 in 2.4 in 1.7 in 11.3 oz 265 n Feb 2016 699i
 
Canon SX620 3.8 in 2.2 in 1.1 in 6.4 oz 295 n May 2016 279 i
 
Canon SX720 4.3 in 2.5 in 1.4 in 9.5 oz 250 n Feb 2016 379i
 
Canon G5 X 4.4 in 3.0 in 1.7 in 12.5 oz 210 n Oct 2015 799i
 
Canon SX410 4.1 in 2.7 in 3.3 in 11.5 oz 185 n Feb 2015 279i
 
Canon SX610 4.1 in 2.4 in 1.1 in 6.7 oz 270 n Jan 2015 249i
 
Canon SX710 4.4 in 2.6 in 1.4 in 9.5 oz 230 n Jan 2015 349i
 
Olympus E-410 5.1 in 3.6 in 2.1 in 15.3 oz 500 n Mar 2007 699i
 
Panasonic ZS70 4.4 in 2.6 in 1.6 in 11.4 oz 380 n Apr 2017 449i
 
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 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
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.

Any camera decision will naturally be influenced heavily by the price. 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 SX420 was launched at a lower price than the G1, despite having a lens built in. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

Sensor comparison

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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. 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 tend to be associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Canon SX420 features a 1/2.3-inch sensor and the Panasonic G1 a Four Thirds sensor. The sensor area in the G1 is 704 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 5.6 and 2.0. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.

Canon SX420 and Panasonic G1 sensor measures

Despite having a smaller sensor, the Canon SX420 offers a higher resolution of 19.9 megapixels, compared with 12 MP of the Panasonic G1. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 1.19μm versus 4.33μm for the G1). However, it should be noted that the SX420 is much more recent (by 7 years and 3 months) than the G1, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently. Coming back to sensor resolution, it should be mentioned that the SX420 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Canon SX420 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the SX420 for good quality output (200 dots per inch) amounts to 25.8 x 19.3 inches or 65.4 x 49.1 cm, for very good quality (250 dpi) 20.6 x 15.5 inches or 52.3 x 39.3 cm, and for excellent quality (300 dpi) 17.2 x 12.9 inches or 43.6 x 32.7 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 Canon PowerShot SX420 IS has a native sensitivity range from ISO 100 to ISO 1600. The corresponding ISO settings for the Panasonic Lumix DMC-G1 are ISO 100 to ISO 1600, with the possibility to increase the ISO range to 100-3200.

SX420 versus G1 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"). The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar 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
 
Canon SX420 1/2.3 19.9 5152 3864720/25p........
 
Panasonic G1 Four Thirds 12.0 4000 3000none21.110.346353
 
Canon SX740 1/2.3 20.2 5184 38884K/30p........
 
Canon SX730 1/2.3 20.2 5184 38881080/60p........
 
Canon G7 X Mark II 1-inch 20.0 5472 36481080/60p........
 
Canon SX620 1/2.3 20.2 5184 38881080/30p........
 
Canon SX720 1/2.3 20.2 5184 38881080/60p........
 
Canon G5 X 1-inch 20.0 5472 36481080/60p........
 
Canon SX410 1/2.3 19.9 5152 3864720/30p........
 
Canon SX610 1/2.3 20.2 5184 38881080/30p........
 
Canon SX710 1/2.3 20.2 5184 38881080/60p........
 
Olympus E-410 Four Thirds 10.0 3648 2736none21.110.049451
 
Panasonic ZS70 1/2.3 20.2 5184 38884K/30p19.110.610636
 
Panasonic G10 Four Thirds 12.0 4000 3000720/30p21.210.141152
 
Panasonic G2 Four Thirds 12.0 4000 3000720/30p21.210.349353
 
Panasonic GH1 Four Thirds 12.0 4000 30001080/24p21.611.677264
 
Panasonic L10 Four Thirds 10.0 3648 2736none21.310.842955

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The SX420 indeed provides movie recording capabilities, while the G1 does not. The highest resolution format that the SX420 can use is 720/25p.

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), which can be very helpful when shooting in bright sunlight. In contrast, the SX420 relies on live view and the rear LCD for framing. The following table reports on some other key feature differences and similarities of the Canon SX420, the Panasonic G1, and comparable 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 SX420none n 3.0 230 fixed n 1/4000s 0.5 Y Y
 
Panasonic G11440 n 3.0 460 swivel n 1/4000s 3.0 Y n
 
Canon SX740none n 3.0 922 tilting n 1/3200s 10.0 Y Y
 
Canon SX730none n 3.0 922 tilting n 1/3200s 5.9 Y Y
 
Canon G7 X Mark IInone n 3.0 1040 tilting Y 1/2000s 8.0 Y Y
 
Canon SX620none n 3.0 922 fixed n 1/2000s 2.5 Y Y
 
Canon SX720none n 3.0 922 fixed n 1/3200s 5.9 Y Y
 
Canon G5 X2360 n 3.0 1040 swivel Y 1/2000s 5.9 Y Y
 
Canon SX410none n 3.0 230 fixed n 1/4000s 0.5 Y Y
 
Canon SX610none n 3.0 922 fixed n 1/2000s 2.5 Y Y
 
Canon SX710none n 3.0 922 fixed n 1/3200s 6.0 Y Y
 
Olympus E-410optical n 2.5 215 fixed n 1/4000s 3.0 Y n
 
Panasonic ZS701166 n 3.0 1040 tilting Y 1/2000s 10.0 Y Y
 
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 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
The G1 has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the SX420 does not have a selfie-screen.

The SX420 writes its imaging data to SDXC cards, while the G1 uses SDHC cards.

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 PowerShot SX420 IS and Panasonic Lumix DMC-G1 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 SX420-monomono---2.0YY-
 
Panasonic G1Y----mini2.0---
 
Canon SX740-stereomono--micro2.0YYY
 
Canon SX730-stereomono--micro2.0YYY
 
Canon G7 X Mark II-stereomono--micro2.0YY-
 
Canon SX620-monomono--micro2.0YY-
 
Canon SX720-stereomono--micro2.0YY-
 
Canon G5 XYstereomono--mini2.0YY-
 
Canon SX410-stereomono---2.0---
 
Canon SX610-----micro2.0YY-
 
Canon SX710-stereomono--micro2.0YY-
 
Olympus E-410Y-----2.0---
 
Panasonic ZS70-stereomono--micro2.0Y--
 
Panasonic G10Ymono---mini2.0---
 
Panasonic G2Ystereomono--mini2.0---
 
Panasonic GH1Ystereo-Y-mini2.0---
 
Panasonic L10Y-----2.0---

It is notable that the SX420 offers wifi support, while the G1 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

The SX420 is a recent model that features in the current product line-up of Canon. In contrast, the G1 has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the G1 was succeeded by the Panasonic G2. 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 SX420 and the Panasonic G1? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

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Arguments in favor of the Canon PowerShot SX420 IS:

  • More detail: Offers more megapixels (19.9 vs 12MP) with a 29% higher linear resolution.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Broader imaging potential: Can record not only still images but also 720/25p movies.
  • Ready to shoot: Has a lens built-in, whereas the G1 requires a separate lens.
  • More compact: Is smaller (104x69mm vs 124x84mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the G1).
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More modern: Reflects 7 years and 3 months of technical progress since the G1 launch.

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Reasons to prefer the Panasonic Lumix DMC-G1:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
  • Richer colors: The pixel size advantage translates into images with better, more accurate colors.
  • More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
  • Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
  • Easier framing: Has an electronic viewfinder for image composition and settings control.
  • More detailed LCD: Has a higher resolution rear screen (460k vs 230k dots).
  • 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 0.5 flaps/sec) to capture the decisive moment.
  • More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
  • Longer lasting: Gets more shots (410 versus 195) out of a single battery charge.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • More heavily discounted: Has been around for much longer (launched in September 2008).

If the number of relative strengths (bullet points above) is taken as a guide, the G1 emerges as the winner of the match-up (14 : 11 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 sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

SX420 11:14 G1

How about other alternatives? Do the specifications of the Canon SX420 and the Panasonic G1 place the cameras among the top in their class? Find out in the latest Best Superzoom 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 partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the SX420 or the G1. 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 following table reports the overall ratings of the cameras as published by some of the major 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 SX420........3/5 Jan 2016 299 i
 
Panasonic G1+ +70/1004/54.5/54.5/5 Sep 2008 599i
 
Canon SX740+..4/5..4/5 Jul 2018 399 i
 
Canon SX730+..4/5..4/5 Apr 2017 399i
 
Canon G7 X Mark II+ +81/1004.5/54/54.5/5 Feb 2016 699i
 
Canon SX620........4/5 May 2016 279 i
 
Canon SX720+..4/5..4.5/5 Feb 2016 379i
 
Canon G5 X+ +78/1004.5/54/54.5/5 Oct 2015 799i
 
Canon SX410o........ Feb 2015 279i
 
Canon SX610....4/5..4/5 Jan 2015 249i
 
Canon SX710+..4/5..3.5/5 Jan 2015 349i
 
Olympus E-41086/100+ +4/5o4.5/5 Mar 2007 699i
 
Panasonic ZS70+ +..4/5..4/5 Apr 2017 449i
 
Panasonic G10..70/1004/5..4/5 Mar 2010 499i
 
Panasonic G2..72/1004/54/54.5/5 Mar 2010 599i
 
Panasonic GH1+ +72/1004.5/55/54.5/5 Mar 2009 899i
 
Panasonic L1085/100+3.5/5o4/5 Aug 2007 599i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The assessments were made in relation to similar cameras of the same technological generation. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

Canon SX420:
Check Amazon price
Panasonic G1:
Check Ebay offers

Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Canon SX420 vs Panasonic G1

    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 SX420 Panasonic G1
    Camera Type Fixed lens compact camera Mirrorless system camera
    Camera Lens 24-1008mm f/3.5-6.6 Micro Four Thirds lenses
    Launch Date January 2016 September 2008
    Launch Price USD 299 USD 599
    Sensor Specs Canon SX420 Panasonic G1
    Sensor Technology CCD CMOS
    Sensor Format 1/2.3" Sensor Four Thirds Sensor
    Sensor Size 6.17 x 4.55 mm 17.3 x 13.0 mm
    Sensor Area 28.0735 mm2 224.9 mm2
    Sensor Diagonal 7.7 mm 21.6 mm
    Crop Factor 5.6x 2.0x
    Sensor Resolution 19.9 Megapixels 12 Megapixels
    Image Resolution 5152 x 3864 pixels 4000 x 3000 pixels
    Pixel Pitch 1.19 μm 4.33 μm
    Pixel Density 70.91 MP/cm2 5.34 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 720/25p Video no Video
    ISO Setting 100 - 1,600 ISO 100 - 1,600 ISO
    ISO Boost no Enhancement 100 - 3,200 ISO
    Image Processor DIGIC 4+ Venus HD
    DXO Sensor Quality (score) .. 53
    DXO Color Depth (bits) .. 21.1
    DXO Dynamic Range (EV) .. 10.3
    DXO Low Light (ISO) .. 463
    Screen Specs Canon SX420 Panasonic G1
    Viewfinder Type no viewfinder Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.70x
    Viewfinder Resolution 1440k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 230k dots 460k dots
    LCD Attachment Fixed screen Swivel screen
    Shooting Specs Canon SX420 Panasonic G1
    Focus System Contrast-detect AF Contrast-detect AF
    Continuous Shooting 0.5 shutter flaps/s 3 shutter flaps/s
    Fill Flash Build-in Flash Build-in Flash
    Storage Medium SDXC cards SDHC cards
    Second Storage Option Single card slot Single card slot
    UHS card support no no
    Connectivity Specs Canon SX420 Panasonic G1
    External Flash no Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port no HDMI mini HDMI
    Wifi Support Wifi built-in no Wifi
    Near-Field Communication NFC built-in no NFC
    Body Specs Canon SX420 Panasonic G1
    Battery Type NB-11LH DMW-BLB13
    Battery Life (CIPA)195 shots per charge410 shots per charge
    Body Dimensions 104 x 69 x 85 mm
    (4.1 x 2.7 x 3.3 in)
    124 x 84 x 45 mm
    (4.9 x 3.3 x 1.8 in)
    Camera Weight 325 g (11.5 oz) 360 g (12.7 oz)

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