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Canon G1 X vs Olympus E-620

The Canon PowerShot G1 X and the Olympus E-620 are two digital cameras that were revealed to the public, respectively, in January 2012 and February 2009. The G1X is a fixed lens compact, while the E-620 is a DSLR. The cameras are based on an 1.5-inch (G1X) and a Four Thirds (E-620) sensor. The Canon has a resolution of 14.2 megapixels, whereas the Olympus provides 12.2 MP.

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

Headline Specifications
Canon G1 X
versus
Olympus E-620
Canon G1 X   Olympus E-620
Fixed lens compact camera Digital single lens reflex
28-112mm f/2.8-5.8 Four Thirds lenses
14.2 MP – 1.5" sensor 12.2 MP – Four Thirds sensor
1080/24p Video no Video
ISO 100-12,800 ISO 100-3,200
Optical viewfinder Optical viewfinder
3.0" LCD – 922k dots 2.7" LCD – 230k dots
Swivel screen (not touch-sensitive) Swivel screen (not touch-sensitive)
1.9 shutter flaps per second 4 shutter flaps per second
Lens-based stabilizationIn-body stabilization
250 shots per battery charge500 shots per battery charge
117 x 81 x 65 mm, 534 g 130 x 94 x 60 mm, 521 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot G1 X and the Olympus E-620? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

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Body comparison

The side-by-side display below illustrates the physical size and weight of the Canon G1 X and the Olympus E-620. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth dimensions are rounded to the nearest millimeter.

Size Canon G1 X vs Olympus E-620
Compare G1X versus E-620 top
Comparison G1X or E-620 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-620 is notably larger (29 percent) than the Canon G1 X. In this context, it is worth noting that neither the G1X nor the E-620 are weather-sealed.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G1X has a lens built in, whereas the E-620 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 E-620 and their specifications in the Four Thirds Lens Catalog.

Concerning battery life, the G1X gets 250 shots out of its Canon NB-10L battery, while the E-620 can take 500 images on a single charge of its Olympus BLS-1 power pack.

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, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.

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Body Specifications
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon G1 X 117 mm 81 mm 65 mm 534 g 250 n Jan 2012 799ebay.com
2.
 
Olympus E-620 130 mm 94 mm 60 mm 521 g 500 n Feb 2009 699ebay.com
3.
 
Canon G1 X Mark II 116 mm 74 mm 66 mm 553 g 240 n Feb 2014 799ebay.com
4.
 
Canon G16 109 mm 76 mm 40 mm 356 g 360 n Aug 2013 549ebay.com
5.
 
Canon S120 100 mm 59 mm 29 mm 217 g 230 n Aug 2013 449ebay.com
6.
 
Canon SX50 123 mm 87 mm 106 mm 595 g 315 n Sep 2012 429ebay.com
7.
 
Canon T4i 133 mm 100 mm 79 mm 575 g 440 n Jun 2012 849ebay.com
8.
 
Canon T3 130 mm 100 mm 78 mm 495 g 700 n Feb 2011 449ebay.com
9.
 
Canon T1i 129 mm 98 mm 62 mm 520 g 400 n Mar 2009 799ebay.com
10.
 
Canon XSi 129 mm 98 mm 62 mm 524 g 500 n Jan 2008 799ebay.com
11.
 
Leica V-LUX 4 125 mm 87 mm 110 mm 588 g 540 n Sep 2012 949ebay.com
12.
 
Leica V-LUX 3 124 mm 81 mm 95 mm 540 g 410 n Dec 2011 949ebay.com
13.
 
Olympus E-600 130 mm 94 mm 60 mm 535 g 500 n Aug 2009 449ebay.com
14.
 
Olympus E-420 130 mm 91 mm 53 mm 440 g 500 n Mar 2008 599ebay.com
15.
 
Olympus E-520 136 mm 92 mm 68 mm 535 g 750 n May 2008 699ebay.com
16.
 
Olympus E-410 130 mm 91 mm 53 mm 435 g 500 n Mar 2007 699ebay.com
17.
 
Olympus E-510 136 mm 92 mm 68 mm 538 g 750 n Mar 2007 799ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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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. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

Sensor comparison

The size of the sensor inside a digital camera is one of the key determinants of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels in a sensor of the same technological generation. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Canon G1 X features an 1.5-inch sensor and the Olympus E-620 a Four Thirds sensor. The sensor area in the E-620 is 14 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.85 and 2.0. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.

Canon G1 X and Olympus E-620 sensor measures

With 14.2MP, the G1X offers a higher resolution than the E-620 (12.2MP), but the G1X nevertheless has marginally larger individual pixels (pixel pitch of 4.30μm versus 4.29μm for the E-620) due to its larger sensor. Moreover, the G1X is a much more recent model (by 2 years and 10 months) than the E-620, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels.

The resolution advantage of the Canon G1 X implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the G1X for good quality output (200 dots per inch) amounts to 21.8 x 16.3 inches or 55.3 x 41.5 cm, for very good quality (250 dpi) 17.4 x 13.1 inches or 44.2 x 33.2 cm, and for excellent quality (300 dpi) 14.5 x 10.9 inches or 36.8 x 27.6 cm. The corresponding values for the Olympus E-620 are 20.2 x 15.1 inches or 51.2 x 38.4 cm for good quality, 16.1 x 12.1 inches or 41 x 30.7 cm for very good quality, and 13.4 x 10.1 inches or 34.1 x 25.6 cm for excellent quality prints.

The Canon PowerShot G1 X has a native sensitivity range from ISO 100 to ISO 12800. The corresponding ISO settings for the Olympus E-620 are ISO 100 to ISO 3200 (no boost).

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

G1X versus E-620 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. Of the two cameras under review, the G1X has a notably higher overall DXO score than the E-620 (overall score 5 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 0.4 bits higher color depth, 0.5 EV in additional dynamic range, and 0.3 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
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Canon G1 X 1.5-inch 14.2 4352 32641080/24p21.710.864460
2.
 
Olympus E-620 Four Thirds 12.2 4032 3024none21.310.353655
3.
 
Canon G1 X Mark II 1.5-inch 13.0 4160 31201080/30p21.510.858158
4.
 
Canon G16 1/1.7 12.0 4000 30001080/60p21.011.723054
5.
 
Canon S120 1/1.7 12.0 4000 30001080/60p21.311.924656
6.
 
Canon SX50 1/2.3 12.0 4000 30001080/24p20.311.217947
7.
 
Canon T4i APS-C 17.9 5184 34561080/30p21.711.272262
8.
 
Canon T3 APS-C 12.2 4272 2848720/30p21.911.075562
9.
 
Canon T1i APS-C 15.1 4752 31681080/20p21.711.566363
10.
 
Canon XSi APS-C 12.2 4272 2848none21.910.869261
11.
 
Leica V-LUX 4 1/2.3 12.0 4000 30001080/60p19.811.150143
12.
 
Leica V-LUX 3 1/2.3 12.0 4000 30001080/60p19.711.043042
13.
 
Olympus E-600 Four Thirds 12.2 4032 3024none21.510.354155
14.
 
Olympus E-420 Four Thirds 10.0 3648 2736none21.510.452756
15.
 
Olympus E-520 Four Thirds 10.0 3648 2736none21.410.454855
16.
 
Olympus E-410 Four Thirds 10.0 3648 2736none21.110.049451
17.
 
Olympus E-510 Four Thirds 10.0 3648 2736none21.210.044252
Note: DXO values in italics represent estimates based on sensor size and age.
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Many modern cameras cannot only take still pictures, but also record videos. The G1X indeed provides movie recording capabilities, while the E-620 does not. The highest resolution format that the G1X can use is 1080/24p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The G1X and the E-620 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 following table reports on some other key feature differences and similarities of the Canon G1 X, the Olympus E-620, and comparable cameras.

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Core Features
# image 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.
 
Canon G1 Xoptical n3.0 / 922 swivel n 1/4000s 1.9/s Y Y
2.
 
Olympus E-620optical n2.7 / 230 swivel n 1/4000s 4.0/s Y Y
3.
 
Canon G1 X Mark IIoptional n3.0 / 1040 tilting Y 1/4000s 5.2/s Y Y
4.
 
Canon G16optical n3.0 / 922 fixed n 1/4000s 2.2/s Y Y
5.
 
Canon S120none n3.0 / 922 fixed Y 1/2000s 12.1/s Y Y
6.
 
Canon SX50202 n3.0 / 461 swivel n 1/2000s 2.2/s Y Y
7.
 
Canon T4ioptical n3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
8.
 
Canon T3optical n2.7 / 230 fixed n 1/4000s 3.0/s Y n
9.
 
Canon T1ioptical n3.0 / 920 fixed n 1/4000s 3.4/s Y n
10.
 
Canon XSioptical n3.0 / 230 fixed n 1/4000s 3.5/s Y n
11.
 
Leica V-LUX 41312 n3.0 / 460 swivel n 1/4000s 12.0/s Y Y
12.
 
Leica V-LUX 3202 n3.0 / 460 swivel n 1/2000s 12.0/s Y Y
13.
 
Olympus E-600optical n2.7 / 230 swivel n 1/4000s 4.0/s Y Y
14.
 
Olympus E-420optical n2.7 / 215 fixed n 1/4000s 3.5/s Y n
15.
 
Olympus E-520optical n2.7 / 215 fixed n 1/4000s 3.5/s Y Y
16.
 
Olympus E-410optical n2.5 / 215 fixed n 1/4000s 3.0/s Y n
17.
 
Olympus E-510optical n2.5 / 215 fixed n 1/4000s 3.0/s Y Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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Both cameras have an articulated rear screen that can be turned to be front-facing. This feature will be particularly appreciated by vloggers and photographers who are interested in taking selfies.

The G1X writes its imaging data to SDXC cards, while the E-620 uses Compact Flash or xD Picture cards. The E-620 features dual card slots, which can be very useful in case a memory card fails. In contrast, the G1X 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 Canon PowerShot G1 X and Olympus E-620 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Canon G1 XYstereo / mono--mini2.0---
2.
 
Olympus E-620Y- / ----2.0---
3.
 
Canon G1 X Mark IIYstereo / mono--mini2.0YY-
4.
 
Canon G16Ystereo / mono--mini2.0Y--
5.
 
Canon S120-stereo / mono--mini2.0Y--
6.
 
Canon SX50Ystereo / mono--mini2.0---
7.
 
Canon T4iYstereo / monoY-mini2.0---
8.
 
Canon T3Ystereo / mono--mini2.0---
9.
 
Canon T1iYmono / mono--mini2.0---
10.
 
Canon XSiY- / ---mini2.0---
11.
 
Leica V-LUX 4Ystereo / monoY-mini2.0---
12.
 
Leica V-LUX 3Ystereo / ---mini2.0---
13.
 
Olympus E-600Y- / ----2.0---
14.
 
Olympus E-420Y- / ----2.0---
15.
 
Olympus E-520Y- / ----2.0---
16.
 
Olympus E-410Y- / ----2.0---
17.
 
Olympus E-510Y- / ----2.0---
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Both the G1X and the E-620 have been discontinued, but can regularly be found used on ebay. The E-620 was replaced by the Olympus E-600, while the G1X was followed by the Canon G1X Mark II. Further information on the features and operation of the G1X and E-620 can be found, respectively, in the Canon G1 X Manual (free pdf) or the online Olympus E-620 Manual.

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Review summary

So what conclusions can be drawn? Which of the two cameras – the Canon G1 X or the Olympus E-620 – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.

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Reasons to prefer the Canon PowerShot G1 X:

  • More detail: Offers more megapixels (14.2 vs 12.2MP) with a 8% higher linear resolution.
  • Better image quality: Scores markedly higher (5 points) in the DXO overall assessment.
  • Broader imaging potential: Can record not only still images but also 1080/24p movies.
  • 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 (922k vs 230k dots).
  • Ready to shoot: Comes with a built-in lens, while the E-620 requires a separate lens.
  • More compact: Is smaller (117x81mm vs 130x94mm) and thus needs less room in the bag.
  • More modern: Reflects 2 years and 10 months of technical progress since the E-620 launch.

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Arguments in favor of the Olympus E-620:

  • Faster burst: Shoots at higher frequency (4 vs 1.9 flaps/sec) to capture the decisive moment.
  • More flexible: Makes it possible to change lenses and thus to use specialty optics.
  • Longer lasting: Gets more shots (500 versus 250) out of a single battery charge.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More heavily discounted: Has been around for much longer (launched in February 2009).

If the count of individual advantages (bullet points above) is taken as a guide, the G1X emerges as the winner of the contest (8 : 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.

G1X 08:05 E-620

How about other alternatives? Do the specifications of the Canon G1 X and the Olympus E-620 place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best DSLR Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains incomplete and does no justice, for example, to the way the G1X or the E-620 perform in practice. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

Expert reviews

This is why expert reviews 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
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon G1 X5/5+..76/1004/54.5/5 Jan 2012 799ebay.com
2.
 
Olympus E-6203/588/100..72/1004.5/55/5 Feb 2009 699ebay.com
3.
 
Canon G1 X Mark II3/5+..77/1004/54.5/5 Feb 2014 799ebay.com
4.
 
Canon G164/5+....4.5/54.5/5 Aug 2013 549ebay.com
5.
 
Canon S120..+ +....4.5/54.5/5 Aug 2013 449ebay.com
6.
 
Canon SX503/5+ +..72/1004.5/54.5/5 Sep 2012 429ebay.com
7.
 
Canon T4i4/5+ +..77/1004.5/54.5/5 Jun 2012 849ebay.com
8.
 
Canon T3..80/100..69/1004/54.5/5 Feb 2011 449ebay.com
9.
 
Canon T1i..+ +..74/1004.5/54.5/5 Mar 2009 799ebay.com
10.
 
Canon XSi..+ +..+ +4/54.5/5 Jan 2008 799ebay.com
11.
 
Leica V-LUX 4............ Sep 2012 949ebay.com
12.
 
Leica V-LUX 3............ Dec 2011 949ebay.com
13.
 
Olympus E-600..........4.5/5 Aug 2009 449ebay.com
14.
 
Olympus E-420..85/100..+ +4/54.5/5 Mar 2008 599ebay.com
15.
 
Olympus E-520..87/100..+ +4.5/54.5/5 May 2008 699ebay.com
16.
 
Olympus E-410..86/100..+ +4/54.5/5 Mar 2007 699ebay.com
17.
 
Olympus E-510..89/100..+ +3.5/54.5/5 Mar 2007 799ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.

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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 make your choice using the following search menu. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications: Canon G1 X vs Olympus E-620

    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 G1 X Olympus E-620
    Camera Type Fixed lens compact camera Digital single lens reflex
    Camera Lens 28-112mm f/2.8-5.8 Four Thirds lenses
    Launch Date January 2012 February 2009
    Launch Price USD 799 USD 699
    Sensor Specs Canon G1 X Olympus E-620
    Sensor Technology CMOS CMOS
    Sensor Format 1.5" Sensor Four Thirds Sensor
    Sensor Size 18.7 x 14.0 mm 17.3 x 13.0 mm
    Sensor Area 261.8 mm2 224.9 mm2
    Sensor Diagonal 23.4 mm 21.6 mm
    Crop Factor 1.85x 2.0x
    Sensor Resolution 14.2 Megapixels 12.2 Megapixels
    Image Resolution 4352 x 3264 pixels 4032 x 3024 pixels
    Pixel Pitch 4.30 μm 4.29 μm
    Pixel Density 5.43 MP/cm2 5.42 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/24p Video no Video
    ISO Setting 100 - 12,800 ISO 100 - 3,200 ISO
    Image Processor DIGIC 5 TruePic III+
    DXO Sensor Quality (score) 60 55
    DXO Color Depth (bits) 21.7 21.3
    DXO Dynamic Range (EV) 10.8 10.3
    DXO Low Light (ISO) 644 536
    Screen Specs Canon G1 X Olympus E-620
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 74% 95%
    Viewfinder Magnification 0.48x
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 2.7inch
    LCD Resolution 922k dots 230k dots
    LCD Attachment Swivel screen Swivel screen
    Shooting Specs Canon G1 X Olympus E-620
    Focus System Contrast-detect AF Phase-detect AF
    Continuous Shooting 1.9 shutter flaps/s 4 shutter flaps/s
    Image StabilizationLens-based stabilizationIn-body stabilization
    Fill Flash Built-in Flash Built-in Flash
    Storage Medium SDXC cards CF or XD cards
    Single or Dual Card Slots Single card slot Dual card slots
    Connectivity Specs Canon G1 X Olympus E-620
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI no HDMI
    Wifi Support no Wifi no Wifi
    Body Specs Canon G1 X Olympus E-620
    Battery Type Canon NB-10L Olympus BLS-1
    Battery Life (CIPA)250 shots per charge500 shots per charge
    Body Dimensions 117 x 81 x 65 mm
    (4.6 x 3.2 x 2.6 in)
    130 x 94 x 60 mm
    (5.1 x 3.7 x 2.4 in)
    Camera Weight 534 g (18.8 oz) 521 g (18.4 oz)
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