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Canon 1D Mark IV vs Sony A77

The Canon EOS-1D Mark IV and the Sony Alpha SLT-A77 are two digital cameras that were officially introduced, respectively, in October 2009 and August 2011. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-H (1D Mark IV) and an APS-C (A77) sensor. The Canon has a resolution of 16 megapixels, whereas the Sony provides 24 MP.

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

Headline Specifications
Canon 1D Mark IV
versus
Sony A77
Canon 1D Mark IV   Sony A77
Digital single lens reflex Digital single lens reflex
Canon EF mount lenses Sony A mount lenses
16 MP – APS-H sensor 24 MP – APS-C sensor
1080/30p Video 1080/60p Video
ISO 100-12,800 (50 - 102,400) ISO 100-16,000 (50 - 25,600)
Optical viewfinder Electronic viewfinder (2359k dots)
3.0" LCD – 920k dots 3.0" LCD – 921k dots
Fixed screen (not touch-sensitive) Fully flexible screen (no touchscreen)
10 shutter flaps per second 12 shutter flaps per second
Lens stabilization onlyIn-body stabilization
Weathersealed bodyWeathersealed body
1500 shots per battery charge470 shots per battery charge
156 x 157 x 80 mm, 1230 g 143 x 104 x 81 mm, 732 g
Canon 1D Mark IV:
Check Ebay offers
Sony A77:
Check Ebay offers

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS-1D Mark IV and the Sony Alpha SLT-A77? 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

The side-by-side display below illustrates the physical size and weight of the Canon 1D Mark IV and the Sony A77. 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.

Size Canon 1D Mark IV vs Sony A77
Compare 1D Mark IV versus A77 top
Comparison 1D Mark IV or A77 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A77 is considerably smaller (39 percent) than the Canon 1D Mark IV. Moreover, the A77 is substantially lighter (40 percent) than the 1D Mark IV. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the 1D Mark IV gets 1500 shots out of its LP-E4 battery, while the A77 can take 470 images on a single charge of its NP-FM500H power pack. As can be seen in the images above, the 1D Mark IV has a battery grip built in. This facilitates image-taking in portrait orientation and gives it additional battery power. In order to provide similar functionality for the A77, Sony provides the VG-C77AM vertical grip as an optional accessory (see here on eBay).

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

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Body Specifications
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon 1D Mark IV 156 mm 157 mm 80 mm 1230 g 1500 Y Oct 2009 4,999i
2.
 
Sony A77 143 mm 104 mm 81 mm 732 g 470 Y Aug 2011 1,399i
3.
 
Canon 1D X Mark II 158 mm 168 mm 83 mm 1530 g 1210 Y Feb 2016 5,999i
4.
 
Canon 1D X 158 mm 168 mm 83 mm 1551 g 1120 Y Oct 2011 6,799i
5.
 
Canon 60D 145 mm 106 mm 79 mm 755 g 1100 Y Aug 2010 1,399i
6.
 
Canon 7D 148 mm 111 mm 74 mm 860 g 800 Y Sep 2009 1,699i
7.
 
Canon 5D Mark II 152 mm 114 mm 75 mm 850 g 850 Y Sep 2008 3,499i
8.
 
Canon 1D Mark III 156 mm 157 mm 80 mm 1155 g 2200 Y Feb 2007 4,499i
9.
 
Canon 1D Mark II 156 mm 158 mm 80 mm 1535 g 1200 Y Jan 2004 4,499i
10.
 
Canon 1Ds Mark II 156 mm 158 mm 80 mm 1215 g 1200 Y Sep 2004 7,999i
11.
 
Nikon D4 160 mm 157 mm 91 mm 1340 g 2600 Y Jan 2012 5,999i
12.
 
Nikon D3S 160 mm 157 mm 88 mm 1240 g 4200 Y Oct 2009 5,199i
13.
 
Pentax K-3 131 mm 100 mm 77 mm 800 g 560 Y Oct 2013 1,299i
14.
 
Sony A6500 120 mm 67 mm 53 mm 453 g 350 Y Oct 2016 1,399i
15.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 1,999i
16.
 
Sony A77 II 143 mm 104 mm 81 mm 647 g 480 Y May 2014 1,199 i
17.
 
Sony A99 147 mm 111 mm 78 mm 812 g 500 Y Sep 2012 2,799i
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 A77 was launched at a markedly lower price (by 72 percent) than the 1D Mark IV, which puts it into a different market segment. 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.

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 1D Mark IV features an APS-H sensor and the Sony A77 an APS-C sensor. The sensor area in the A77 is 29 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.3 and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

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

Canon 1D Mark IV and Sony A77 sensor measures

Despite having a smaller sensor, the A77 offers a higher resolution of 24 megapixels, compared with 16 MP of the 1D Mark IV. 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 3.91μm versus 5.70μm for the 1D Mark IV). However, it should be noted that the A77 is a somewhat more recent model (by 1 year and 10 months) than the 1D Mark IV, and its sensor might have benefitted from technological advances during this time that partly offset its pixel-size disadvantage.

The resolution advantage of the Sony A77 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A77 for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Canon 1D Mark IV are 24.5 x 16.3 inches or 62.2 x 41.5 cm for good quality, 19.6 x 13.1 inches or 49.7 x 33.2 cm for very good quality, and 16.3 x 10.9 inches or 41.5 x 27.6 cm for excellent quality prints.

The Canon EOS-1D Mark IV has a native sensitivity range from ISO 100 to ISO 12800, which can be extended to ISO 50-102400. The corresponding ISO settings for the Sony Alpha SLT-A77 are ISO 100 to ISO 16000, with the possibility to increase the ISO range to 50-25600.

1D Mark IV versus A77 MP

For many cameras, data on sensor performance has been reported by DXO Mark. 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 consideration, the A77 has a markedly higher DXO score than the 1D Mark IV (overall score 4 points higher), which will translate into better image quality. The advantage is based on 1.2 bits higher color depth, 1.2 EV in additional dynamic range, and 0.7 stops of reduced low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

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Sensor Characteristics
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Canon 1D Mark IV APS-H 16.0 4896 32641080/30p22.812.0132074
2.
 
Sony A77 APS-C 24.0 6000 40001080/60p24.013.280178
3.
 
Canon 1D X Mark II Full Frame 20.0 5472 36484K/60p24.113.5320788
4.
 
Canon 1D X Full Frame 17.9 5184 34561080/30p23.811.8278682
5.
 
Canon 60D APS-C 17.9 5184 34561080/30p22.211.581366
6.
 
Canon 7D APS-C 17.9 5184 34561080/30p22.011.785466
7.
 
Canon 5D Mark II Full Frame 21.0 5616 37441080/30p23.711.9181579
8.
 
Canon 1D Mark III APS-H 10.1 3888 2592none22.711.7107871
9.
 
Canon 1D Mark II APS-H 8.2 3504 2336none22.311.1100366
10.
 
Canon 1Ds Mark II Full Frame 16.6 4992 3328none23.311.3148074
11.
 
Nikon D4 Full Frame 16.2 4928 32801080/30p24.713.1296589
12.
 
Nikon D3S Full Frame 12.1 4256 2832720/24p23.512.0325382
13.
 
Pentax K-3 APS-C 24.1 6016 40001080/60i23.713.4121680
14.
 
Sony A6500 APS-C 24.0 6000 40004K/30p24.513.7140585
15.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990
16.
 
Sony A77 II APS-C 24.0 6000 40001080/60p23.512.7144277
17.
 
Sony A99 Full Frame 24.0 6000 40001080/60p25.014.0155589
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras cannot only take still pictures, but also record videos. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the A77 provides a faster frame rate than the 1D Mark IV. It can shoot movie footage at 1080/60p, while the Canon is limited to 1080/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the A77 has an electronic viewfinder (2359k dots), while the 1D Mark IV has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the A77 has a higher magnification than the one of the 1D Mark IV (0.73x vs 0.58x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Canon 1D Mark IV and Sony A77 in connection with corresponding information for a sample of similar cameras.

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Core Features
    Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
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 1D Mark IVoptical Y3.0 / 920 fixed n 1/8000s 10.0/s n n
2.
 
Sony A772359 Y3.0 / 921 full-flex n 1/8000s 12.0/s Y Y
3.
 
Canon 1D X Mark IIoptical Y3.2 / 1620 fixed Y 1/8000s 16.0/s n n
4.
 
Canon 1D Xoptical Y3.2 / 1040 fixed n 1/8000s 14.0/s n n
5.
 
Canon 60Doptical Y3.0 / 1040 swivel n 1/8000s 5.3/s Y n
6.
 
Canon 7Doptical Y3.0 / 920 fixed n 1/8000s 8.0/s Y n
7.
 
Canon 5D Mark IIoptical Y3.0 / 920 fixed n 1/8000s 3.9/s n n
8.
 
Canon 1D Mark IIIoptical Y3.0 / 230 fixed n 1/8000s 10.0/s n n
9.
 
Canon 1D Mark IIoptical Y2.0 / 230 fixed n 1/8000s 8.3/s n n
10.
 
Canon 1Ds Mark IIoptical Y2.0 / 230 fixed n 1/8000s 4.0/s n n
11.
 
Nikon D4optical Y3.2 / 921 fixed n 1/8000s 11.0/s n n
12.
 
Nikon D3Soptical Y3.0 / 921 fixed n 1/8000s 11.0/s n n
13.
 
Pentax K-3optical Y3.2 / 1037 fixed n 1/8000s 8.3/s Y Y
14.
 
Sony A65002359 n3.0 / 922 tilting Y 1/4000s 11.0/s Y Y
15.
 
Sony A7 II2400 n3.0 / 1230 tilting n 1/8000s 5.0/s n Y
16.
 
Sony A77 II2359 Y3.0 / 1229 full-flex n 1/8000s 12.0/s Y Y
17.
 
Sony A992359 Y3.0 / 1229 full-flex n 1/8000s 6.0/s n Y
Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that differentiates the A77 and the 1D Mark IV is in-body image stabilization (IBIS). The A77 reduces the risk of handshake-induced blur with all attached lenses, while the 1D Mark IV offers no blur reduction with lenses that themselves do not provide optical image stabilization.

The A77 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 1D Mark IV does not have a selfie-screen.

The 1D Mark IV writes its imaging data to Compact Flash or SDHC cards, while the A77 uses SDXC or Memory Stick PRO Duo cards. The 1D Mark IV features dual card slots, which can be very useful in case a memory card fails. In contrast, the A77 only has one slot. The A77 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the 1D Mark IV cannot take advantage of Ultra High Speed SD 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 EOS-1D Mark IV and Sony Alpha SLT-A77 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
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Canon 1D Mark IVYstereo / -Y-mini2.0---
2.
 
Sony A77Ystereo / monoY-mini2.0---
3.
 
Canon 1D X Mark IIYmono / monoYYmini3.0---
4.
 
Canon 1D XYmono / -Y-mini2.0---
5.
 
Canon 60DYmono / monoY-mini2.0---
6.
 
Canon 7DYmono / -Y-mini2.0---
7.
 
Canon 5D Mark IIYmono / monoY-mini2.0---
8.
 
Canon 1D Mark IIIY- / ----2.0---
9.
 
Canon 1D Mark IIY- / ----1.1---
10.
 
Canon 1Ds Mark IIY- / ----2.0---
11.
 
Nikon D4Ymono / monoYYmicro2.0---
12.
 
Nikon D3SYstereo / ---mini2.0---
13.
 
Pentax K-3Ymono / monoYYmini3.0---
14.
 
Sony A6500Ystereo / monoY-micro2.0YY-
15.
 
Sony A7 IIYstereo / monoYYmicro2.0YY-
16.
 
Sony A77 IIYstereo / monoY-mini2.0YY-
17.
 
Sony A99Ystereo / monoYYmini2.0---

Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.

Travel and landscape photographers will find it useful that the A77 has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

Both the 1D Mark IV and the A77 have been discontinued, but can regularly be found used on eBay. The A77 was replaced by the Sony A77 II, while the 1D Mark IV does not have a direct successor. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon and Sony websites.

Review summary

So what conclusions can be drawn? Is the Canon 1D Mark IV better than the Sony A77 or vice versa? The listing below highlights the relative strengths of the two models.

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Advantages of the Canon EOS-1D Mark IV:

  • Better low-light sensitivity: Requires less light for good images (0.7 stops ISO advantage).
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
  • Longer lasting: Can take more shots (1500 versus 470) on 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 on the market for longer (launched in October 2009).

ilogo

Reasons to prefer the Sony Alpha SLT-A77:

  • More detail: Has more megapixels (24 vs 16MP), which boosts linear resolution by 23%.
  • Better image quality: Scores markedly higher (4 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (1.2 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (1.2 EV of extra DR).
  • Better video: Provides higher movie framerates (1080/60p versus 1080/30p).
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.73x vs 0.58x).
  • More flexible LCD: Has a full-flex 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 (12 vs 10 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (143x104mm vs 156x157mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 498g or 40 percent) and is thus easier to take along.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • Easier geotagging: Features an internal GPS sensor to log localization data.
  • Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
  • More affordable: Was introduced into a lower priced category (72 percent cheaper at launch).
  • More modern: Was introduced somewhat (1 year and 10 months) more recently.

If the number of relative strengths (bullet points above) is taken as a guide, the A77 is the clear winner of the contest (18 : 6 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 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.

1D Mark IV 06:18 A77

How about other alternatives? Do the specifications of the Canon 1D Mark IV and the Sony A77 place the cameras among the top in their class? Find out in the latest Best DSLR Camera listing whether the two cameras rank among the cream of the crop.

In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains incomplete and does no justice, for example, to the way the 1D Mark IV or the A77 perform in practice. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

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 (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
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon 1D Mark IV5/5....89/100.... Oct 2009 4,999i
2.
 
Sony A775/591/100..81/100..5/5 Aug 2011 1,399i
3.
 
Canon 1D X Mark II....4.5/589/1004.5/54.5/5 Feb 2016 5,999i
4.
 
Canon 1D X5/5......4.5/54.5/5 Oct 2011 6,799i
5.
 
Canon 60D5/5+..79/1004/54.5/5 Aug 2010 1,399i
6.
 
Canon 7D5/5+ +..84/1004.5/54.5/5 Sep 2009 1,699i
7.
 
Canon 5D Mark II4/591/100..79/1004/5.. Sep 2008 3,499i
8.
 
Canon 1D Mark III............ Feb 2007 4,499i
9.
 
Canon 1D Mark II......+ +.... Jan 2004 4,499i
10.
 
Canon 1Ds Mark II......+ +.... Sep 2004 7,999i
11.
 
Nikon D4........4.5/54.5/5 Jan 2012 5,999i
12.
 
Nikon D3S5/5....89/1004.5/55/5 Oct 2009 5,199i
13.
 
Pentax K-34/5....83/1005/55/5 Oct 2013 1,299i
14.
 
Sony A65005/5+ +3.5/585/1004.5/54.5/5 Oct 2016 1,399i
15.
 
Sony A7 II5/5+4/582/1004.5/55/5 Nov 2014 1,999i
16.
 
Sony A77 II4/5....80/1004.5/55/5 May 2014 1,199 i
17.
 
Sony A995/5....84/1004.5/54.5/5 Sep 2012 2,799i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. 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. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

Canon 1D Mark IV:
Check Ebay offers
Sony A77:
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 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 1D Mark IV vs Sony A77

    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 1D Mark IV Sony A77
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Canon EF mount lenses Sony A mount lenses
    Launch Date October 2009 August 2011
    Launch Price USD 4,999 USD 1,399
    Sensor Specs Canon 1D Mark IV Sony A77
    Sensor Technology CMOS CMOS
    Sensor Format APS-H Sensor APS-C Sensor
    Sensor Size 27.9 x 18.6 mm 23.5 x 15.6 mm
    Sensor Area 518.94 mm2 366.6 mm2
    Sensor Diagonal 33.5 mm 28.2 mm
    Crop Factor 1.3x 1.5x
    Sensor Resolution 16 Megapixels 24 Megapixels
    Image Resolution 4896 x 3264 pixels 6000 x 4000 pixels
    Pixel Pitch 5.70 μm 3.91 μm
    Pixel Density 3.08 MP/cm2 6.55 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/30p Video 1080/60p Video
    ISO Setting 100 - 12,800 ISO 100 - 16,000 ISO
    ISO Boost 50 - 102,400 ISO 50 - 25,600 ISO
    Image Processor DIGIC IV BIONZ X
    DXO Sensor Quality (score) 74 78
    DXO Color Depth (bits) 22.8 24.0
    DXO Dynamic Range (EV) 12.0 13.2
    DXO Low Light (ISO) 1320 801
    Screen Specs Canon 1D Mark IV Sony A77
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.58x 0.73x
    Viewfinder Resolution 2359k dots
    Top-Level Screen Control Panel Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 920k dots 921k dots
    LCD Attachment Fixed screen Fully flexible screen
    Shooting Specs Canon 1D Mark IV Sony A77
    Focus System Phase-detect AF Phase-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/8000s
    Continuous Shooting 10 shutter flaps/s 12 shutter flaps/s
    Shutter Life Expectancy300 000 actuations150 000 actuations
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash no On-Board Flash Built-in Flash
    Storage Medium CF or SDHC cards MS or SDXC cards
    Second Storage Option Dual card slots Single card slot
    UHS card support no UHS-I
    Connectivity Specs Canon 1D Mark IV Sony A77
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI mini HDMI
    Microphone Port External MIC port External MIC port
    Wifi Support no Wifi no Wifi
    Geotagging no internal GPS GPS built-in
    Body Specs Canon 1D Mark IV Sony A77
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type LP-E4 NP-FM500H
    Battery Life (CIPA)1500 shots per charge470 shots per charge
    Body Dimensions 156 x 157 x 80 mm
    (6.1 x 6.2 x 3.1 in)
    143 x 104 x 81 mm
    (5.6 x 4.1 x 3.2 in)
    Camera Weight 1230 g (43.4 oz) 732 g (25.8 oz)
    Canon 1D Mark IV:
    Check Ebay offers
    Sony A77:
    Check Ebay offers

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