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Olympus E-3 vs Panasonic GF7

The Olympus E-3 and the Panasonic Lumix DMC-GF7 are two digital cameras that were officially introduced, respectively, in October 2007 and January 2015. The E-3 is a DSLR, while the GF7 is a mirrorless interchangeable lens camera. Both cameras are equipped with a Four Thirds sensor. The Olympus has a resolution of 10 megapixels, whereas the Panasonic provides 15.8 MP.

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

Headline Specifications
Olympus E-3
versus
Panasonic GF7
Olympus E-3   Panasonic GF7
Digital single lens reflex Mirrorless system camera
Four Thirds lenses Micro Four Thirds lenses
10 MP, Four Thirds Sensor 15.8 MP, Four Thirds Sensor
no Video 1080/60p Video
ISO 100-3,200 ISO 200-25,600
Optical viewfinder No viewfinder, LCD framing
2.5 LCD, 230k dots 3.0 LCD, 1040k dots
Swivel screen (not touch-sensitive) Tilting touchscreen
5 shutter flaps per second 5.8 shutter flaps per second
In-body stabilizationLens stabilization only
Weathersealed bodynot weather sealed
750 shots per battery charge230 shots per battery charge
142 x 116 x 75 mm, 876 g 107 x 65 x 33 mm, 266 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus E-3 and the Panasonic Lumix DMC-GF7? 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 Olympus E-3 and the Panasonic GF7 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 GF7 can be obtained in two different colors (black, pink), while the E-3 is only available in black.

Size Olympus E-3 vs Panasonic GF7
Compare E-3 versus GF7 top
Comparison E-3 or GF7 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic GF7 is considerably smaller (58 percent) than the Olympus E-3. Moreover, the GF7 is substantially lighter (70 percent) than the E-3. It is worth mentioning in this context that the E-3 is splash and dust resistant, while the GF7 does not feature any corresponding weather-sealing.

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. Both cameras have similarly sized sensors, but DSLRs have a larger flange-to-focal plane distance than mirrorless cameras, which imposes contraints on the optical engineering process and generally leads to bigger and heavier lenses. You can compare the optics available for the two cameras in the Four Thirds Lens Catalog (E-3) and the Micro Four Thirds Lens Catalog (GF7). Mirrorless cameras, such as the GF7, have moreover the advantage that they can use many lenses from other systems via adapters, as they have a relatively short flange to focal plane distance.

Concerning battery life, the E-3 gets 750 shots out of its BLM-1 battery, while the GF7 can take 230 images on a single charge of its DMW-BLH7 power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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.
 
Olympus E-3 142 mm 116 mm 75 mm 876 g 750 Y Oct 2007 1,699 i
2.
 
Panasonic GF7 107 mm 65 mm 33 mm 266 g 230 n Jan 2015 499 i
3.
 
Nikon D300 147 mm 114 mm 74 mm 925 g 1000 Y Aug 2007 1,799 i
4.
 
Olympus E-5 142 mm 117 mm 75 mm 873 g 750 Y Sep 2010 1,699 i
5.
 
Olympus E-600 130 mm 94 mm 60 mm 535 g 500 n Aug 2009 449 i
6.
 
Olympus E-620 130 mm 94 mm 60 mm 521 g 500 n Feb 2009 699 i
7.
 
Olympus E-30 142 mm 108 mm 75 mm 701 g 750 n Nov 2008 1,299 i
8.
 
Olympus E-420 130 mm 91 mm 53 mm 440 g 500 n Mar 2008 599 i
9.
 
Olympus E-520 136 mm 92 mm 68 mm 535 g 750 n May 2008 699 i
10.
 
Olympus E-410 130 mm 91 mm 53 mm 435 g 500 n Mar 2007 699 i
11.
 
Olympus E-510 136 mm 92 mm 68 mm 538 g 750 n Mar 2007 799 i
12.
 
Olympus E-1 141 mm 104 mm 81 mm 738 g 750 Y Jun 2003 1,699 i
13.
 
Panasonic GX850 107 mm 65 mm 33 mm 269 g 210 n Jan 2017 549 i
14.
 
Panasonic G7 125 mm 86 mm 77 mm 410 g 350 n May 2015 649 i
15.
 
Panasonic GM5 99 mm 60 mm 36 mm 211 g 220 n Sep 2014 749 i
16.
 
Panasonic GF6 111 mm 65 mm 38 mm 323 g 340 n Apr 2013 499 i
17.
 
Panasonic GX1 116 mm 68 mm 39 mm 318 g 320 n Nov 2011 699 i
Notes: 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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The GF7 was launched at a markedly lower price (by 71 percent) than the E-3, which puts it into a different market segment. 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 imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. A large sensor will 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. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Both cameras under consideration feature a Four Thirds sensor and have a format factor (sometimes also referred to as "crop factor") of 2.0. Within the spectrum of camera sensors, this places the review cameras among the medium-sized sensor cameras that aim to strike a balance between image quality and portability. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.

Olympus E-3 and Panasonic GF7 sensor measures

While the two cameras under review share the same sensor size, the GF7 offers a higher resolution of 15.8 megapixels, compared with 10 MP of the E-3. This megapixels advantage translates into a 26 percent gain in linear resolution. On the other hand, these sensor specs imply that the GF7 has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.77μm versus 4.74μm for the E-3). However, it should be noted that the GF7 is much more recent (by 7 years and 3 months) than the E-3, and its sensor will have benefitted from technological advances during this time that compensate for the smaller pixel size.

The resolution advantage of the Panasonic GF7 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the GF7 for good quality output (200 dots per inch) amounts to 23 x 17.2 inches or 58.3 x 43.8 cm, for very good quality (250 dpi) 18.4 x 13.8 inches or 46.7 x 35 cm, and for excellent quality (300 dpi) 15.3 x 11.5 inches or 38.9 x 29.2 cm. The corresponding values for the Olympus E-3 are 18.2 x 13.7 inches or 46.3 x 34.7 cm for good quality, 14.6 x 10.9 inches or 37.1 x 27.8 cm for very good quality, and 12.2 x 9.1 inches or 30.9 x 23.2 cm for excellent quality prints.

The Olympus E-3 has a native sensitivity range from ISO 100 to ISO 3200. The corresponding ISO settings for the Panasonic Lumix DMC-GF7 are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 100-25600.

E-3 versus GF7 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Olympus E-3 Four Thirds 10.0 3648 2736none21.610.5571 56
2.
 
Panasonic GF7 Four Thirds 15.8 4592 34481080/60p...... ..
3.
 
Nikon D300 APS-C 12.2 4288 2848none22.112.0679 67
4.
 
Olympus E-5 Four Thirds 12.2 4032 3024720/30p21.610.5519 56
5.
 
Olympus E-600 Four Thirds 12.2 4032 3024none21.510.3541 55
6.
 
Olympus E-620 Four Thirds 12.2 4032 3024none21.310.3536 55
7.
 
Olympus E-30 Four Thirds 12.2 4032 3024none21.310.4530 55
8.
 
Olympus E-420 Four Thirds 10.0 3648 2736none21.510.4527 56
9.
 
Olympus E-520 Four Thirds 10.0 3648 2736none21.410.4548 55
10.
 
Olympus E-410 Four Thirds 10.0 3648 2736none21.110.0494 51
11.
 
Olympus E-510 Four Thirds 10.0 3648 2736none21.210.0442 52
12.
 
Olympus E-1 Four Thirds 4.9 2560 1920none...... ..
13.
 
Panasonic GX850 Four Thirds 15.8 4592 34484K/30p23.213.3586 73
14.
 
Panasonic G7 Four Thirds 15.8 4592 34484K/30p...... ..
15.
 
Panasonic GM5 Four Thirds 15.8 4592 34481080/60p22.111.7721 66
16.
 
Panasonic GF6 Four Thirds 15.8 4592 34481080/60i20.710.6622 54
17.
 
Panasonic GX1 Four Thirds 15.8 4592 34481080/60p20.810.6703 55

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The GF7 indeed provides for movie recording, while the E-3 does not. The highest resolution format that the GF7 can use is 1080/60p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the E-3 has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the GF7 relies on live view and the rear LCD for framing. The table below summarizes some of the other core capabilities of the Olympus E-3 and Panasonic GF7 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
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
1.
 
Olympus E-3optical Y 2.5 230 swivel n 1/8000s 5.0 Y Y
2.
 
Panasonic GF7none n 3.0 1040 tilting Y 1/500s 5.8 Y n
3.
 
Nikon D300optical Y 3.0 922 fixed n 1/8000s 6.0 Y n
4.
 
Olympus E-5optical Y 3.0 920 swivel n 1/8000s 5.0 Y Y
5.
 
Olympus E-600optical n 2.7 230 swivel n 1/4000s 4.0 Y Y
6.
 
Olympus E-620optical n 2.7 230 swivel n 1/4000s 4.0 Y Y
7.
 
Olympus E-30optical Y 2.7 230 swivel n 1/8000s 5.0 Y Y
8.
 
Olympus E-420optical n 2.7 215 fixed n 1/4000s 3.5 Y n
9.
 
Olympus E-520optical n 2.7 215 fixed n 1/4000s 3.5 Y Y
10.
 
Olympus E-410optical n 2.5 215 fixed n 1/4000s 3.0 Y n
11.
 
Olympus E-510optical n 2.5 215 fixed n 1/4000s 3.0 Y Y
12.
 
Olympus E-1optical Y 1.8 134 fixed n 1/4000s 3.0 n n
13.
 
Panasonic GX850none n 3.0 1040 tilting Y 1/500s 10.0 Y n
14.
 
Panasonic G72360 n 3.0 1040 swivel Y 1/4000s 7.0 Y n
15.
 
Panasonic GM51166 n 3.0 921 fixed Y 1/500s 5.8 n n
16.
 
Panasonic GF6none n 3.0 1040 tilting Y 1/4000s 4.2 Y n
17.
 
Panasonic GX1optional n 3.0 460 fixed Y 1/4000s 4.2 Y n

One feature that is present on the E-3, but is missing on the GF7 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.

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 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 GF7 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 E-3 writes its imaging data to Compact Flash or xD Picture cards, while the GF7 uses SDXC cards. The E-3 features dual card slots, which can be very useful in case a memory card fails. In contrast, the GF7 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 Olympus E-3 and Panasonic Lumix DMC-GF7 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
    Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Olympus E-3Y-----2.0---
2.
 
Panasonic GF7-stereomono--micro2.0YY-
3.
 
Nikon D300Y----mini2.0---
4.
 
Olympus E-5Ystereo---mini2.0---
5.
 
Olympus E-600Y-----2.0---
6.
 
Olympus E-620Y-----2.0---
7.
 
Olympus E-30Y-----2.0---
8.
 
Olympus E-420Y-----2.0---
9.
 
Olympus E-520Y-----2.0---
10.
 
Olympus E-410Y-----2.0---
11.
 
Olympus E-510Y-----2.0---
12.
 
Olympus E-1Y-----2.0---
13.
 
Panasonic GX850-stereomono--micro2.0Y--
14.
 
Panasonic G7YstereomonoY-micro2.0Y--
15.
 
Panasonic GM5Ystereomono--micro2.0Y--
16.
 
Panasonic GF6-stereomono--mini2.0YY-
17.
 
Panasonic GX1Ystereomono--mini2.0---

It is notable that the E-3 has a hotshoe, while the GF7 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.

Studio photographers will appreciate that the Olympus E-3 (unlike the GF7) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the E-3 and the GF7 have been discontinued, but can regularly be found used on eBay. The E-3 was replaced by the Olympus E-5, while the GF7 was followed by the Panasonic GX850. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Olympus and Panasonic websites.

Review summary

So what conclusions can be drawn? Which of the two cameras – the Olympus E-3 or the Panasonic GF7 – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.

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Reasons to prefer the Olympus E-3:

  • Easier framing: Has an optical viewfinder for image composition and settings control.
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/500s) to freeze action.
  • Longer lasting: Can take more shots (750 versus 230) on a single battery charge.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More heavily discounted: Has been available for much longer (launched in October 2007).

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Advantages of the Panasonic Lumix DMC-GF7:

  • More detail: Has more megapixels (15.8 vs 10MP), which boosts linear resolution by 26%.
  • Broader imaging potential: Can capture not only stills but also 1080/60p video.
  • 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 230k dots).
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster burst: Shoots at higher frequency (5.8 vs 5 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • More compact: Is smaller (107x65mm vs 142x116mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 610g or 70 percent) and is thus easier to take along.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • More affordable: Was introduced into a lower priced category (71 percent cheaper at launch).
  • More modern: Reflects 7 years and 3 months of technical progress since the E-3 launch.

If the count of relative strengths (bullet points above) is taken as a measure, the GF7 emerges as the winner of the match-up (14 : 11 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. 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.

E-3 11:14 GF7

How about other alternatives? Do the specifications of the Olympus E-3 and the Panasonic GF7 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the E-3 or the GF7. 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 where reviews by experts come in. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (amateurphotographer [AP], cameralabs [CL], 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 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Olympus E-3..88/100+ +o4/5 Oct 2007 1,699 i
2.
 
Panasonic GF74/5+..4.5/54.5/5 Jan 2015 499 i
3.
 
Nikon D300..+ ++ +5/54.5/5 Aug 2007 1,799 i
4.
 
Olympus E-54/5..75/1004/54.5/5 Sep 2010 1,699 i
5.
 
Olympus E-600........4.5/5 Aug 2009 449 i
6.
 
Olympus E-6203/588/10072/1004.5/55/5 Feb 2009 699 i
7.
 
Olympus E-30....71/1004.5/54/5 Nov 2008 1,299 i
8.
 
Olympus E-420..85/100+ +4/54.5/5 Mar 2008 599 i
9.
 
Olympus E-520..87/100+ +4.5/54.5/5 May 2008 699 i
10.
 
Olympus E-410..86/100+ +4/54.5/5 Mar 2007 699 i
11.
 
Olympus E-510..89/100+ +3.5/54.5/5 Mar 2007 799 i
12.
 
Olympus E-1....+o.. Jun 2003 1,699 i
13.
 
Panasonic GX850..+76/1004.5/54.5/5 Jan 2017 549 i
14.
 
Panasonic G74/5+ +80/1005/54.5/5 May 2015 649 i
15.
 
Panasonic GM53.5/5+77/1005/54.5/5 Sep 2014 749 i
16.
 
Panasonic GF6..+ +..4.5/54.5/5 Apr 2013 499 i
17.
 
Panasonic GX13/5+77/1004.5/54.5/5 Nov 2011 699 i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted 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. Thus, a score needs to be put into the context of the launch date and the launch price 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, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Olympus E-3:
Check Ebay offers
Panasonic GF7:
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 your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Olympus E-3 vs Panasonic GF7

    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 Olympus E-3 Panasonic GF7
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Four Thirds lenses Micro Four Thirds lenses
    Launch Date October 2007 January 2015
    Launch Price USD 1,699 USD 499
    Sensor Specs Olympus E-3 Panasonic GF7
    Sensor Technology CMOS CMOS
    Sensor Format Four Thirds Sensor Four Thirds Sensor
    Sensor Size 17.3 x 13.0 mm 17.3 x 13.0 mm
    Sensor Area 224.9 mm2 224.9 mm2
    Sensor Diagonal 21.6 mm 21.6 mm
    Crop Factor 2.0x 2.0x
    Sensor Resolution 10 Megapixels 15.8 Megapixels
    Image Resolution 3648 x 2736 pixels 4592 x 3448 pixels
    Pixel Pitch 4.74 μm 3.77 μm
    Pixel Density 4.44 MP/cm2 7.04 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability no Video 1080/60p Video
    ISO Setting 100 - 3,200 ISO 200 - 25,600 ISO
    ISO Boost no Enhancement 100 - 25,600 ISO
    Image Processor TruePic III Venus
    DXO Sensor Quality (score) 56 ..
    DXO Color Depth (bits) 21.6 ..
    DXO Dynamic Range (EV) 10.5 ..
    DXO Low Light (ISO) 571 ..
    Screen Specs Olympus E-3 Panasonic GF7
    Viewfinder Type Optical viewfinder no viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.58x
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 2.5inch 3.0inch
    LCD Resolution 230k dots 1040k dots
    LCD Attachment Swivel screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Olympus E-3 Panasonic GF7
    Focus System Phase-detect AF Contrast-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/500s
    Continuous Shooting 5 shutter flaps/s 5.8 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/16000s
    Image StabilizationIn-body stabilizationLens stabilization only
    Fill Flash Built-in Flash Built-in Flash
    Storage Medium CF or XD cards SDXC cards
    Second Storage Option Dual card slots Single card slot
    Connectivity Specs Olympus E-3 Panasonic GF7
    External Flash Hotshoe no Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 2.0 USB 2.0
    HDMI Port no HDMI micro HDMI
    Wifi Support no Wifi Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Body Specs Olympus E-3 Panasonic GF7
    Environmental SealingWeathersealed bodynot weather sealed
    Battery Type BLM-1 DMW-BLH7
    Battery Life (CIPA)750 shots per charge230 shots per charge
    Body Dimensions 142 x 116 x 75 mm
    (5.6 x 4.6 x 3.0 in)
    107 x 65 x 33 mm
    (4.2 x 2.6 x 1.3 in)
    Camera Weight 876 g (30.9 oz) 266 g (9.4 oz)

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