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Canon G7 X Mark III vs Olympus E-500

The Canon PowerShot G7 X Mark III and the Olympus Evolt E-500 are two digital cameras that were revealed to the public, respectively, in July 2019 and September 2005. The G7X Mark III is a fixed lens compact, while the E-500 is a DSLR. The cameras are based on an one-inch (G7X Mark III) and a Four Thirds (E-500) sensor. The Canon has a resolution of 20 megapixels, whereas the Olympus provides 8 MP.

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

Headline Specifications
Canon G7 X Mark III   Olympus E-500
Canon G7 X Mark III Olympus E-500
Fixed lens compact camera Digital single lens reflex
24-100mm f/1.8-2.8 Four Thirds lenses
20 MP, 1" Sensor 8 MP, Four Thirds Sensor
4K/30p Video no Video
ISO 125-12800 (125-25600) ISO 100-400 (100-1600)
No viewfinder, LCD framing Optical viewfinder
3.0" LCD, 1040k dots 2.5" LCD, 215k dots
Tilting touchscreen Fixed screen (not touch-sensitive)
30 shutter flaps per second 2.5 shutter flaps per second
235 shots per battery charge750 shots per battery charge
105 x 61 x 41 mm, 304 g 130 x 95 x 66 mm, 479 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot G7 X Mark III and the Olympus Evolt E-500? 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 G7 X Mark III and the Olympus E-500 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 G7X Mark III can be obtained in two different colors (black, silver), while the E-500 is only available in black.

Size Canon G7 X Mark III vs Olympus E-500
Compare G7X Mark III versus E-500 top
Comparison G7X Mark III or E-500 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-500 is considerably larger (93 percent) than the Canon G7 X Mark III. In this context, it is worth noting that neither the G7X Mark III nor the E-500 are weather-sealed.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G7X Mark III has a lens built in, whereas the E-500 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-500 and their specifications in the Four Thirds Lens Catalog.

Concerning battery life, the G7X Mark III gets 235 shots out of its NB-13L battery, while the E-500 can take 750 images on a single charge of its BLM-1 power pack. The power pack in the G7X Mark III can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.

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.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Canon G7 X Mark III» 4.1 in 2.4 in 1.6 in 10.7 oz 235 n Jul 2019 749 i i Canon G7 X Mark III
 
Olympus E-500« 5.1 in 3.7 in 2.6 in 16.9 oz 750 n Sep 2005 599- i Olympus E-500
 
Canon G5 X Mark II« » 4.4 in 2.4 in 1.8 in 12.0 oz 230 n Jul 2019 899 i i Canon G5 X Mark II
 
Canon SX740« » 4.3 in 2.5 in 1.6 in 10.5 oz 265 n Jul 2018 399 i i Canon SX740
 
Canon G7 X Mark II« » 4.2 in 2.4 in 1.7 in 11.3 oz 265 n Feb 2016 699- i Canon G7 X Mark II
 
Canon G5 X« » 4.4 in 3.0 in 1.7 in 12.5 oz 210 n Oct 2015 799- i Canon G5 X
 
Canon G7 X« » 4.1 in 2.4 in 1.6 in 10.7 oz 210 n Sep 2014 699- i Canon G7 X
 
Leica C-LUX« » 4.4 in 2.6 in 1.8 in 12.0 oz 370 n Jun 2018 1,049 i i Leica C-LUX
 
Olympus E-410« » 5.1 in 3.6 in 2.1 in 15.3 oz 500 n Mar 2007 699- i Olympus E-410
 
Olympus E-510« » 5.4 in 3.6 in 2.7 in 19.0 oz 750 n Mar 2007 799- i Olympus E-510
 
Olympus E-330« » 5.5 in 3.4 in 2.8 in 22.5 oz 750 n Jan 2006 999- i Olympus E-330
 
Olympus E-400« » 5.1 in 3.6 in 2.1 in 15.3 oz 500 n Sep 2006 699- i Olympus E-400
 
Olympus E-300« » 5.8 in 3.3 in 2.5 in 22.0 oz 750 n Sep 2004 799- i Olympus E-300
 
Panasonic FZ1000 II« » 5.4 in 3.8 in 5.2 in 28.6 oz 350 n Feb 2019 899 i i Panasonic FZ1000 II
 
Panasonic ZS200« » 4.4 in 2.6 in 1.8 in 12.0 oz 370 n Feb 2018 799 i i Panasonic ZS200
 
Sony RX100 VII« » 4.0 in 2.3 in 1.7 in 10.7 oz 260 n Jul 2019 1,199 i i Sony RX100 VII
 
Sony RX100 VI« » 4.0 in 2.3 in 1.7 in 10.6 oz 240 n Jun 2018 1,199- i Sony RX100 VI
Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.

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. 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 G7 X Mark III features an one-inch sensor and the Olympus E-500 a Four Thirds sensor. The sensor area in the E-500 is 94 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.7 and 2.0. The sensor in the G7X Mark III has a native 3:2 aspect ratio, while the one in the E-500 offers a 4:3 aspect.

Canon G7 X Mark III and Olympus E-500 sensor measures

Despite having a smaller sensor, the Canon G7 X Mark III offers a higher resolution of 20 megapixels, compared with 8 MP of the Olympus E-500. 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 2.41μm versus 5.30μm for the E-500). However, it should be noted that the G7X Mark III is much more recent (by 13 years and 9 months) than the E-500, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.

The resolution advantage of the Canon G7 X Mark III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the G7X Mark III for good quality output (200 dots per inch) amounts to 27.4 x 18.2 inch or 69.5 x 46.3 cm, for very good quality (250 dpi) 21.9 x 14.6 inch or 55.6 x 37.1 cm, and for excellent quality (300 dpi) 18.2 x 12.2 inch or 46.3 x 30.9 cm. The corresponding values for the Olympus E-500 are 16.3 x 12.2 inch or 41.5 x 31.1 cm for good quality, 13.1 x 9.8 inch or 33.2 x 24.9 cm for very good quality, and 10.9 x 8.2 inch or 27.6 x 20.7 cm for excellent quality prints.

The Canon PowerShot G7 X Mark III has a native sensitivity range from ISO 125 to ISO 12800, which can be extended to ISO 125-25600. The corresponding ISO settings for the Olympus Evolt E-500 are ISO 100 to ISO 400, with the possibility to increase the ISO range to 100-1600.

G7X Mark III versus E-500 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 following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
 
Canon G7 X Mark III» 1-inch 20.0 5472 36484K/30p----Canon G7 X Mark III
 
Olympus E-500« Four Thirds 8.0 3264 2448-----Olympus E-500
 
Canon G5 X Mark II« » 1-inch 20.0 5472 36484K/30p----Canon G5 X Mark II
 
Canon SX740« » 1/2.3 20.2 5184 38884K/30p----Canon SX740
 
Canon G7 X Mark II« » 1-inch 20.0 5472 36481080/60p----Canon G7 X Mark II
 
Canon G5 X« » 1-inch 20.0 5472 36481080/60p----Canon G5 X
 
Canon G7 X« » 1-inch 20.0 5472 36481080/60p23.012.755671Canon G7 X
 
Leica C-LUX« » 1-inch 20.0 5472 36484K/30p----Leica C-LUX
 
Olympus E-410« » Four Thirds 10.0 3648 2736-21.110.049451Olympus E-410
 
Olympus E-510« » Four Thirds 10.0 3648 2736-21.210.044252Olympus E-510
 
Olympus E-330« » Four Thirds 7.4 3136 2352-----Olympus E-330
 
Olympus E-400« » Four Thirds 10.0 3648 2736-----Olympus E-400
 
Olympus E-300« » Four Thirds 8.0 3264 2448-----Olympus E-300
 
Panasonic FZ1000 II« » 1-inch 20.0 5472 36484K/30p----Panasonic FZ1000 II
 
Panasonic ZS200« » 1-inch 20.0 5472 36484K/30p----Panasonic ZS200
 
Sony RX100 VII« » 1-inch 20.0 5472 36484K/30p----Sony RX100 VII
 
Sony RX100 VI« » 1-inch 20.0 5472 36484K/30p----Sony RX100 VI

Many modern cameras cannot only take still pictures, but also record videos. The G7X Mark III indeed provides movie recording capabilities, while the E-500 does not. The highest resolution format that the G7X Mark III can use is 4K/30p.

 

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the E-500 has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the G7X Mark III relies on live view and the rear LCD for framing. The table below summarizes some of the other core capabilities of the Canon G7 X Mark III and Olympus E-500 in connection with corresponding information for a sample of similar cameras.

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
Camera
Model
 
Canon G7 X Mark III»- n 3.0 1040 tilting Y 1/2000s 30 Y Y Canon G7 X Mark III
 
Olympus E-500«optical n 2.5 215 fixed n 1/4000s 2.5 Y n Olympus E-500
 
Canon G5 X Mark II« »2360 n 3.0 1040 tilting Y 1/2000s 30 Y Y Canon G5 X Mark II
 
Canon SX740« »- n 3.0 922 tilting n 1/3200s 10.0 Y Y Canon SX740
 
Canon G7 X Mark II« »- n 3.0 1040 tilting Y 1/2000s 8.0 Y Y Canon G7 X Mark II
 
Canon G5 X« »2360 n 3.0 1040 swivel Y 1/2000s 5.9 Y Y Canon G5 X
 
Canon G7 X« »- n 3.0 1040 tilting Y 1/2000s 6.5 Y Y Canon G7 X
 
Leica C-LUX« »2330 n 3.0 1240 fixed Y 1/2000s 10.0 Y Y Leica C-LUX
 
Olympus E-410« »optical n 2.5 215 fixed n 1/4000s 3.0 Y n Olympus E-410
 
Olympus E-510« »optical n 2.5 215 fixed n 1/4000s 3.0 Y Y Olympus E-510
 
Olympus E-330« »optical n 2.5 215 tilting n 1/4000s 3.0 Y n Olympus E-330
 
Olympus E-400« »optical n 2.5 215 fixed n 1/4000s 3.0 Y n Olympus E-400
 
Olympus E-300« »optical n 1.8 134 fixed n 1/4000s 2.5 Y n Olympus E-300
 
Panasonic FZ1000 II« »2360 n 3.0 1240 swivel Y 1/4000s 12.0 Y Y Panasonic FZ1000 II
 
Panasonic ZS200« »2330 n 3.0 1240 fixed Y 1/2000s 10.0 Y Y Panasonic ZS200
 
Sony RX100 VII« »2359 n 3.0 921 tilting Y 1/2000s 90.0 Y Y Sony RX100 VII
 
Sony RX100 VI« »2359 n 3.0 1229 tilting Y 1/2000s 24.0 Y Y Sony RX100 VI

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The G7X Mark III has a touchscreen, while the E-500 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The G7X Mark III 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 E-500 does not have a selfie-screen.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the G7X Mark III is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The Canon G7 X Mark III 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 G7X Mark III writes its imaging data to SDXC cards, while the E-500 uses Compact Flash or xD Picture cards. The E-500 features dual card slots, which can be very useful in case a memory card fails. In contrast, the G7X Mark III only has one slot.

 

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 G7 X Mark III and Olympus Evolt E-500 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Canon G7 X Mark III»-stereomonoY-micro3.1Y-YCanon G7 X Mark III
 
Olympus E-500«Y-----2.0---Olympus E-500
 
Canon G5 X Mark II« »-stereomono--micro3.1Y-YCanon G5 X Mark II
 
Canon SX740« »-stereomono--micro2.0YYYCanon SX740
 
Canon G7 X Mark II« »-stereomono--micro2.0YY-Canon G7 X Mark II
 
Canon G5 X« »Ystereomono--mini2.0YY-Canon G5 X
 
Canon G7 X« »-stereomono--micro2.0YY-Canon G7 X
 
Leica C-LUX« »-stereomono--micro2.0Y--Leica C-LUX
 
Olympus E-410« »Y-----2.0---Olympus E-410
 
Olympus E-510« »Y-----2.0---Olympus E-510
 
Olympus E-330« »Y-----2.0---Olympus E-330
 
Olympus E-400« »Y-----2.0---Olympus E-400
 
Olympus E-300« »Y-----2.0---Olympus E-300
 
Panasonic FZ1000 II« »Ystereomono--micro2.0Y-YPanasonic FZ1000 II
 
Panasonic ZS200« »-stereomono--micro2.0Y-YPanasonic ZS200
 
Sony RX100 VII« »-stereomonoY-micro2.0YYYSony RX100 VII
 
Sony RX100 VI« »-stereomono--micro2.0YYYSony RX100 VI

It is notable that the G7X Mark III offers wifi support, while the E-500 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

The G7X Mark III is a recent model that features in the current product line-up of Canon. In contrast, the E-500 has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the E-500 was succeeded by the Olympus E-510. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon and Olympus websites.


Review summary

So what is the bottom line? Is there a clear favorite between the Canon G7 X Mark III and the Olympus E-500? Which camera is better? The listing below highlights the relative strengths of the two models.

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Advantages of the Canon PowerShot G7 X Mark III:

  • More detail: Offers more megapixels (20 vs 8MP) with a 61% higher linear resolution.
  • Broader imaging potential: Can record not only still images but also 4K/30p movies.
  • Larger screen: Has a bigger rear LCD (3.0" vs 2.5") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1040k vs 215k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (30 vs 2.5 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Ready to shoot: Comes with a built-in lens, while the E-500 requires a separate lens.
  • More compact: Is smaller (105x61mm vs 130x95mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the E-500).
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • More modern: Reflects 13 years and 9 months of technical progress since the E-500 launch.

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Reasons to prefer the Olympus Evolt E-500:

  • Easier framing: Has an optical viewfinder for image composition and settings control.
  • Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/2000s) to freeze action.
  • More flexible: Makes it possible to change lenses and thus to use specialty optics.
  • Longer lasting: Gets more shots (750 versus 235) out of a single battery charge.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • 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 September 2005).

If the count of individual advantages (bullet points above) is taken as a guide, the G7X Mark III is the clear winner of the match-up (18 : 7 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. A professional 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.

G7X Mark III 18:07 E-500

How about other alternatives? Do the specifications of the Canon G7 X Mark III and the Olympus E-500 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 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 G7X Mark III or the E-500 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.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Canon G7 X Mark III»+ +-4/5-- Jul 2019 749 i i Canon G7 X Mark III
 
Olympus E-500«76/100+ +--- Sep 2005 599- i Olympus E-500
 
Canon G5 X Mark II« »+82/100--4/5 Jul 2019 899 i i Canon G5 X Mark II
 
Canon SX740« »+-4/5-4/5 Jul 2018 399 i i Canon SX740
 
Canon G7 X Mark II« »+ +81/1004.5/54/54.5/5 Feb 2016 699- i Canon G7 X Mark II
 
Canon G5 X« »+ +78/1004.5/54/54.5/5 Oct 2015 799- i Canon G5 X
 
Canon G7 X« »+ +77/1004.5/53.5/54.5/5 Sep 2014 699- i Canon G7 X
 
Leica C-LUX« »--4.5/5-4/5 Jun 2018 1,049 i i Leica C-LUX
 
Olympus E-410« »86/100+ +4/5o4.5/5 Mar 2007 699- i Olympus E-410
 
Olympus E-510« »89/100+ +3.5/5o4.5/5 Mar 2007 799- i Olympus E-510
 
Olympus E-330« »-+o3.5/5- Jan 2006 999- i Olympus E-330
 
Olympus E-400« »85/100-4/5-4/5 Sep 2006 699- i Olympus E-400
 
Olympus E-300« »-+oo4.5/5 Sep 2004 799- i Olympus E-300
 
Panasonic FZ1000 II« »--4.5/5-4.5/5 Feb 2019 899 i i Panasonic FZ1000 II
 
Panasonic ZS200« »+ +81/1004.5/5-4.5/5 Feb 2018 799 i i Panasonic ZS200
 
Sony RX100 VII« »--4/5-- Jul 2019 1,199 i i Sony RX100 VII
 
Sony RX100 VI« »+ +83/1004/5-4.5/5 Jun 2018 1,199- i Sony RX100 VI
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 G7 X Mark III:
Check Amazon price
Olympus E-500:
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 G7 X Mark III vs Olympus E-500

    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 G7 X Mark III Olympus E-500
    Camera Type Fixed lens compact camera Digital single lens reflex
    Camera Lens 24-100mm f/1.8-2.8 Four Thirds lenses
    Launch Date July 2019 September 2005
    Launch Price USD 749 USD 599
    Sensor Specs Canon G7 X Mark III Olympus E-500
    Sensor Technology BSI-CMOS CCD
    Sensor Format 1" Sensor Four Thirds Sensor
    Sensor Size 13.2 x 8.8 mm 17.3 x 13.0 mm
    Sensor Area 116.16 mm2 224.9 mm2
    Sensor Diagonal 15.9 mm 21.6 mm
    Crop Factor 2.7x 2.0x
    Sensor Resolution 20 Megapixels 8 Megapixels
    Image Resolution 5472 x 3648 pixels 3264 x 2448 pixels
    Pixel Pitch 2.41 μm 5.30 μm
    Pixel Density 17.18 MP/cm2 3.55 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 4K/30p Video no Video
    ISO Setting 125-12800 ISO 100-400 ISO
    ISO Boost 125-25600 ISO 100-1600 ISO
    Image Processor DIGIC 8 TruePic
    Screen Specs Canon G7 X Mark III Olympus E-500
    Viewfinder Type No viewfinder Optical viewfinder
    Viewfinder Field of View 95%
    Viewfinder Magnification 0.45x
    LCD Framing Live View
    Rear LCD Size 3.0 inch 2.5 inch
    LCD Resolution 1040k dots 215k dots
    LCD Attachment Tilting screen Fixed screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Canon G7 X Mark III Olympus E-500
    Autofocus System Contrast-detect AF Phase-detect AF
    Manual Focusing AidFocus PeakingNo Peaking Feature
    Continuous Shooting 30 shutter flaps/s 2.5 shutter flaps/s
    Electronic Shutterup to 1/25600sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Fill Flash Build-in Flash Build-in Flash
    Storage Medium SDXC cards CF or XD cards
    Second Storage Option Single card slot Dual card slots
    Connectivity Specs Canon G7 X Mark III Olympus E-500
    External Flash no Hotshoe Hotshoe
    USB Connector USB 3.1 USB 2.0
    HDMI Port micro HDMI no HDMI
    Microphone Port External MIC port no MIC socket
    Wifi Support Wifi built-in no Wifi
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Canon G7 X Mark III Olympus E-500
    Battery Type NB-13L BLM-1
    Battery Life (CIPA)235 shots per charge750 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 105 x 61 x 41 mm
    (4.1 x 2.4 x 1.6 in)
    130 x 95 x 66 mm
    (5.1 x 3.7 x 2.6 in)
    Camera Weight 304 g (10.7 oz) 479 g (16.9 oz)

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