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Canon G12 vs Nikon D100

The Canon PowerShot G12 and the Nikon D100 are two digital cameras that were announced, respectively, in September 2010 and February 2002. The G12 is a fixed lens compact, while the D100 is a DSLR. The cameras are based on a 1/1.7-inch (G12) and an APS-C (D100) sensor. The Canon has a resolution of 10 megapixels, whereas the Nikon provides 6 MP.

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

Headline Specifications
Canon G12
versus
Nikon D100
Canon G12   Nikon D100
Fixed lens compact camera Digital single lens reflex
28-140mm f/2.8-4.5 Nikon F mount lenses
10 MP – 1/1.7" sensor 6 MP – APS-C sensor
720/24p Video no Video
ISO 80-3,200 (80 - 12,800) ISO 200-800 (200 - 1,600)
Optical viewfinder Optical viewfinder
2.8" LCD – 461k dots 1.8" LCD – 118k dots
Swivel screen (not touch-sensitive) Fixed screen (not touch-sensitive)
1.1 shutter flaps per second 3 shutter flaps per second
370 shots per battery charge370 shots per battery charge
112 x 76 x 48 mm, 401 g 144 x 116 x 81 mm, 780 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot G12 and the Nikon D100? 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 physical size and weight of the Canon G12 and the Nikon D100 are illustrated 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.

Size Canon G12 vs Nikon D100
Compare G12 versus D100 top
Comparison G12 or D100 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Nikon D100 is considerably larger (96 percent) than the Canon G12. In this context, it is worth noting that neither the G12 nor the D100 are weather-sealed.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G12 has a lens built in, whereas the D100 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 D100 and their specifications in the Nikon Lens Catalog.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
1.
 
Canon G12 112 mm 76 mm 48 mm 401 g 370 n Sep 2010 US$ 499ebay.com
2.
 
Nikon D100 144 mm 116 mm 81 mm 780 g 370 n Feb 2002 US$ 1 999ebay.com
3.
 
Canon 10D 150 mm 107 mm 75 mm 850 g 500 n Feb 2003 US$ 1 999ebay.com
4.
 
Canon G15 107 mm 76 mm 40 mm 352 g 350 n Sep 2012 US$ 499ebay.com
5.
 
Canon G16 109 mm 76 mm 40 mm 356 g 360 n Aug 2013 US$ 549ebay.com
6.
 
Canon SX50 123 mm 87 mm 106 mm 595 g 315 n Sep 2012 US$ 429ebay.com
7.
 
Fujifilm X10 117 mm 70 mm 57 mm 350 g 270 n Sep 2011 US$ 599ebay.com
8.
 
Nikon D70 140 mm 111 mm 78 mm 679 g 400 n Jan 2004 US$ 999ebay.com
9.
 
Nikon D70s 140 mm 111 mm 78 mm 679 g 500 n Apr 2005 US$ 899ebay.com
10.
 
Nikon D200 147 mm 113 mm 74 mm 920 g 400 Y Nov 2005 US$ 1 699ebay.com
11.
 
Nikon D500 147 mm 115 mm 81 mm 860 g 1240 Y Jan 2016 US$ 1 999ebay.com
12.
 
Nikon P7800 119 mm 78 mm 50 mm 399 g 350 n Sep 2013 US$ 549ebay.com
13.
 
Olympus E-450 130 mm 91 mm 53 mm 440 g 500 n Mar 2009 US$ 499ebay.com
14.
 
Panasonic FZ150 124 mm 82 mm 92 mm 528 g 410 n Aug 2011 US$ 499ebay.com
15.
 
Panasonic G2 124 mm 84 mm 74 mm 428 g 360 n Mar 2010 US$ 599ebay.com
16.
 
Panasonic G10 124 mm 84 mm 74 mm 388 g 380 n Mar 2010 US$ 499ebay.com
17.
 
Panasonic LX5 110 mm 65 mm 43 mm 271 g 400 n Jul 2010 US$ 499ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or 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. The G12 was launched at a lower price than the D100, 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. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixels in a sensor of the same technological generation. 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 G12 features a 1/1.7-inch sensor and the Nikon D100 an APS-C sensor. The sensor area in the D100 is 760 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 4.6 and 1.5. The sensor in the G12 has a native 4:3 aspect ratio, while the one in the D100 offers a 3:2 aspect.

Canon G12 and Nikon D100 sensor measures

Despite having a smaller sensor, the Canon G12 offers a higher resolution of 10 megapixels, compared with 6 MP of the Nikon D100. 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 2.07μm versus 7.85μm for the D100). However, it should be noted that the G12 is much more recent (by 8 years and 6 months) than the D100, 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 G12 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the G12 for good quality output (200 dots per inch) amounts to 18.2 x 13.7 inches or 46.3 x 34.7 cm, for very good quality (250 dpi) 14.6 x 10.9 inches or 37.1 x 27.8 cm, and for excellent quality (300 dpi) 12.2 x 9.1 inches or 30.9 x 23.2 cm. The corresponding values for the Nikon D100 are 15 x 10 inches or 38.2 x 25.4 cm for good quality, 12 x 8 inches or 30.6 x 20.3 cm for very good quality, and 10 x 6.7 inches or 25.5 x 16.9 cm for excellent quality prints.

The Canon PowerShot G12 has a native sensitivity range from ISO 80 to ISO 3200, which can be extended to ISO 80-12800. The corresponding ISO settings for the Nikon D100 are ISO 200 to ISO 800, with the possibility to increase the ISO range to 200-1600.

Technology-wise, both cameras are equipped with CCD (Charged Coupled Device) 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.

G12 versus D100 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 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
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Canon G12 1/1.7 10.0 3648 2736720/24p20.411.216147
2.
 
Nikon D100 APS-C 6.0 3008 2000none20.49.939448
3.
 
Canon 10D APS-C 6.3 3072 2048none21.110.957157
4.
 
Canon G15 1/1.7 12.0 4000 30001080/24p19.911.516546
5.
 
Canon G16 1/1.7 12.0 4000 30001080/60p21.011.723054
6.
 
Canon SX50 1/2.3 12.0 4000 30001080/24p20.311.217947
7.
 
Fujifilm X10 2/3 12.0 4000 30001080/30p20.511.324550
8.
 
Nikon D70 APS-C 6.0 3008 2000none20.410.352950
9.
 
Nikon D70s APS-C 6.0 3008 2000none20.410.352950
10.
 
Nikon D200 APS-C 10.0 3872 2592none22.311.558364
11.
 
Nikon D500 APS-C 20.7 5568 37124K/30p24.014.0132483
12.
 
Nikon P7800 1/1.7 12.0 4000 30001080/30p21.211.720054
13.
 
Olympus E-450 Four Thirds 10.0 3648 2736none21.510.551256
14.
 
Panasonic FZ150 1/2.3 12.0 4000 30001080/60p19.410.913240
15.
 
Panasonic G2 Four Thirds 12.0 4000 3000720/30p21.210.349353
16.
 
Panasonic G10 Four Thirds 12.0 4000 3000720/30p21.210.141152
17.
 
Panasonic LX5 1/1.7 10.0 3648 2736720/60p19.610.813241
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The G12 indeed provides movie recording capabilities, while the D100 does not. The highest resolution format that the G12 can use is 720/24p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The G12 and the D100 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 adjacent table lists some of the other core features of the Canon G12 and Nikon D100 along with similar information for a selection of comparators.

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Core Features
  empty 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 G12optical n2.8 / 461 swivel n 1/4000s 1.1/s Y Y
2.
 
Nikon D100optical Y1.8 / 118 fixed n 1/4000s 3.0/s Y n
3.
 
Canon 10Doptical Y1.8 / 118 fixed n 1/4000s 3.0/s Y n
4.
 
Canon G15optical n3.0 / 922 fixed n 1/4000s 2.1/s Y Y
5.
 
Canon G16optical n3.0 / 922 fixed n 1/4000s 2.2/s Y Y
6.
 
Canon SX50202 n3.0 / 461 swivel n 1/2000s 2.2/s Y Y
7.
 
Fujifilm X10optical n2.8 / 460 fixed n 1/4000s 10.0/s Y Y
8.
 
Nikon D70optical n1.8 / 130 fixed n 1/8000s 3.0/s Y n
9.
 
Nikon D70soptical n2.0 / 130 fixed n 1/8000s 3.0/s Y n
10.
 
Nikon D200optical Y2.5 / 230 fixed n 1/8000s 5.0/s Y n
11.
 
Nikon D500optical Y3.2 / 2359 tilting Y 1/8000s 10.0/s n n
12.
 
Nikon P7800921 n3.0 / 921 swivel n 1/4000s 8.0/s Y Y
13.
 
Olympus E-450optical n2.7 / 215 fixed n 1/4000s 3.5/s Y n
14.
 
Panasonic FZ150202 n3.0 / 460 swivel n 1/2000s 12.0/s Y Y
15.
 
Panasonic G21440 n3.0 / 460 swivel Y 1/4000s 2.6/s Y n
16.
 
Panasonic G10202 n3.0 / 460 fixed n 1/4000s 2.6/s Y n
17.
 
Panasonic LX5optional n3.0 / 460 fixed n 1/4000s 2.5/s Y Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that is present on the D100, but is missing on the G12 is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.

The G12 writes its imaging data to SDXC cards, while the D100 uses Compact Flash cards.

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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 G12 and Nikon D100 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Canon G12Ystereo / mono--mini2.0---
2.
 
Nikon D100Y- / ----1.1---
3.
 
Canon 10DY- / ----1.1---
4.
 
Canon G15Ystereo / mono--mini2.0---
5.
 
Canon G16Ystereo / mono--mini2.0Y--
6.
 
Canon SX50Ystereo / mono--mini2.0---
7.
 
Fujifilm X10Ystereo / mono--mini2.0---
8.
 
Nikon D70Y- / ----1.0---
9.
 
Nikon D70sY- / ----2.0---
10.
 
Nikon D200Y- / ----2.0---
11.
 
Nikon D500Ystereo / monoYYmini3.0YYY
12.
 
Nikon P7800Ystereo / monoY-mini2.0---
13.
 
Olympus E-450Y- / ----2.0---
14.
 
Panasonic FZ150Ystereo / ---mini2.0---
15.
 
Panasonic G2Ystereo / mono--mini2.0---
16.
 
Panasonic G10Ymono / ---mini2.0---
17.
 
Panasonic LX5Ymono / mono--mini2.0---

Both the G12 and the D100 have been discontinued, but can regularly be found used on ebay. The D100 was replaced by the Nikon D200, while the G12 was followed by the Canon G15. Further information on the features and operation of the G12 and D100 can be found, respectively, in the Canon G12 Manual (free pdf) or the online Nikon D100 Manual.

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Review summary

So what conclusions can be drawn? Is the Canon G12 better than the Nikon D100 or vice versa? The listing below highlights the relative strengths of the two models.

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Advantages of the Canon PowerShot G12:

  • More detail: Offers more megapixels (10 vs 6MP) with a 26% higher linear resolution.
  • Broader imaging potential: Can record not only still images but also 720/24p movies.
  • Larger screen: Has a bigger rear LCD (2.8" vs 1.8") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (461k vs 118k dots).
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • Ready to shoot: Comes with a built-in lens, while the D100 requires a separate lens.
  • More compact: Is smaller (112x76mm vs 144x116mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the D100).
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • Faster data transfer: Supports a more advanced USB protocol (2.0 vs 1.1).
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More modern: Reflects 8 years and 6 months of technical progress since the D100 launch.

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Arguments in favor of the Nikon D100:

  • 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 setting verification: Features a control panel on top to check shooting parameters.
  • Faster burst: Shoots at higher frequency (3 vs 1.1 flaps/sec) to capture the decisive moment.
  • More flexible: Makes it possible to change lenses and thus to use specialty optics.
  • More heavily discounted: Has been around for much longer (launched in February 2002).

If the number of relative strengths (bullet points above) is taken as a guide, the G12 is the clear winner of the match-up (12 : 8 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 wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

G12 12:08 D100

How about other alternatives? Do the specifications of the Canon G12 and the Nikon D100 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 says little about, for example, the shooting experience and imaging performance of the G12 and the D100 in practical situations. 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 table below provides a synthesis of the camera assessments of some of the best known photo-gear 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
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Canon G124/5+..73/1004.5/54.5/5 Sep 2010 US$ 499ebay.com
2.
 
Nikon D100......+ +o.. Feb 2002 US$ 1 999ebay.com
3.
 
Canon 10D......+ +.... Feb 2003 US$ 1 999ebay.com
4.
 
Canon G154/5+..76/1004.5/54.5/5 Sep 2012 US$ 499ebay.com
5.
 
Canon G164/5+....4.5/54.5/5 Aug 2013 US$ 549ebay.com
6.
 
Canon SX503/5+ +..72/1004.5/54.5/5 Sep 2012 US$ 429ebay.com
7.
 
Fujifilm X10......76/1004/54.5/5 Sep 2011 US$ 599ebay.com
8.
 
Nikon D70......+ +.... Jan 2004 US$ 999ebay.com
9.
 
Nikon D70s..........5/5 Apr 2005 US$ 899ebay.com
10.
 
Nikon D200..+ +..+ +o.. Nov 2005 US$ 1 699ebay.com
11.
 
Nikon D5005/5+ +4.7/591/1004.5/55/5 Jan 2016 US$ 1 999ebay.com
12.
 
Nikon P78003/5......4/54.5/5 Sep 2013 US$ 549ebay.com
13.
 
Olympus E-450........4/54/5 Mar 2009 US$ 499ebay.com
14.
 
Panasonic FZ1503/5+ +..76/1004/54.5/5 Aug 2011 US$ 499ebay.com
15.
 
Panasonic G2......72/1004/54.5/5 Mar 2010 US$ 599ebay.com
16.
 
Panasonic G103/5....70/1004/54/5 Mar 2010 US$ 499ebay.com
17.
 
Panasonic LX54/5+..73/1004.5/54.5/5 Jul 2010 US$ 499ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. 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. 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? If you would like to see a different side-by-side camera review, just use the search menu below. 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 G12 vs Nikon D100

    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 G12 Nikon D100
    Camera Type Fixed lens compact camera Digital single lens reflex
    Camera Lens 28-140mm f/2.8-4.5 Nikon F mount lenses
    Launch Date September 2010 February 2002
    Launch Price USD 499 USD 1,999
    Sensor Specs Canon G12 Nikon D100
    Sensor Technology CCD CCD
    Sensor Format 1/1.7" Sensor APS-C Sensor
    Sensor Size 7.6 x 5.7 mm 23.7 x 15.6 mm
    Sensor Area 43.32 mm2 369.72 mm2
    Sensor Diagonal 9.5 mm 28.4 mm
    Crop Factor 4.6x 1.5x
    Sensor Resolution 10 Megapixels 6 Megapixels
    Image Resolution 3648 x 2736 pixels 3008 x 2000 pixels
    Pixel Pitch 2.07 μm 7.85 μm
    Pixel Density 23.04 MP/cm2 1.63 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 720/24p Video no Video
    ISO Setting 80 - 3,200 ISO 200 - 800 ISO
    ISO Boost 80 - 12,800 ISO 200 - 1,600 ISO
    DXO Sensor Quality (score) 47 ..
    DXO Color Depth (bits) 20.4 ..
    DXO Dynamic Range (EV) 11.2 ..
    DXO Low Light (ISO) 161 ..
    Screen Specs Canon G12 Nikon D100
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 95%
    Viewfinder Magnification 0.53x
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View
    Rear LCD Size 2.8inch 1.8inch
    LCD Resolution 461k dots 118k dots
    LCD Attachment Swivel screen Fixed screen
    Shooting Specs Canon G12 Nikon D100
    Focus System Contrast-detect AF Phase-detect AF
    Continuous Shooting 1.1 shutter flaps/s 3 shutter flaps/s
    Fill Flash Built-in Flash Built-in Flash
    Storage Medium SDXC cards CF cards
    Single or Dual Card Slots Single card slot Single card slot
    Connectivity Specs Canon G12 Nikon D100
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 1.1
    HDMI Port mini HDMI no HDMI
    Wifi Support no Wifi no Wifi
    Body Specs Canon G12 Nikon D100
    Battery Type Canon NB-7L Nikon EN-EL3
    Battery Life (CIPA)370 shots per charge370 shots per charge
    Body Dimensions 112 x 76 x 48 mm
    (4.4 x 3.0 x 1.9 in)
    144 x 116 x 81 mm
    (5.7 x 4.6 x 3.2 in)
    Camera Weight 401 g (14.1 oz) 780 g (27.5 oz)
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