Olympus E-30 vs Panasonic GF7
The Olympus E-30 and the Panasonic Lumix DMC-GF7 are two digital cameras that were revealed to the public, respectively, in November 2008 and January 2015. The E-30 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 12.2 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.
|Olympus E-30||Panasonic GF7|
|Digital single lens reflex||Mirrorless system camera|
|Four Thirds lenses||Micro Four Thirds lenses|
|12.2 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|
|2.7 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 stabilization||Lens stabilization only|
|750 shots per battery charge||230 shots per battery charge|
|142 x 108 x 75 mm, 701 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-30 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.
The physical size and weight of the Olympus E-30 and the Panasonic GF7 are illustrated 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 width, height and depth measures are rounded to the nearest millimeter.
The GF7 can be obtained in two different colors (black, pink), while the E-30 is only available in black.
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 (55 percent) than the Olympus E-30. Moreover, the GF7 is substantially lighter (62 percent) than the E-30. In this context, it is worth noting that neither the E-30 nor the GF7 are weather-sealed.
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-30) 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.
The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you would like to visualize and compare a different camera combination, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.
|Olympus E-30||142 mm||108 mm||75 mm||701 g||750||n||Nov 2008||1,299|
|Panasonic GF7||107 mm||65 mm||33 mm||266 g||230||n||Jan 2015||499|
|Canon M10||108 mm||67 mm||35 mm||301 g||255||n||Oct 2015||499|
|Olympus E-450||130 mm||91 mm||53 mm||440 g||500||n||Mar 2009||499|
|Olympus E-600||130 mm||94 mm||60 mm||535 g||500||n||Aug 2009||449|
|Olympus E-620||130 mm||94 mm||60 mm||521 g||500||n||Feb 2009||699|
|Olympus E-P1||121 mm||70 mm||36 mm||355 g||300||n||Jun 2009||799|
|Olympus E-P2||121 mm||70 mm||36 mm||355 g||300||n||Nov 2009||799|
|Olympus E-420||130 mm||91 mm||53 mm||440 g||500||n||Mar 2008||599|
|Olympus E-520||136 mm||92 mm||68 mm||535 g||750||n||May 2008||699|
|Olympus E-3||142 mm||116 mm||75 mm||876 g||750||Y||Oct 2007||1,699|
|Olympus E-410||130 mm||91 mm||53 mm||435 g||500||n||Mar 2007||699|
|Olympus E-510||136 mm||92 mm||68 mm||538 g||750||n||Mar 2007||799|
|Panasonic GX800||107 mm||65 mm||33 mm||269 g||210||n||Jan 2017||549|
|Panasonic G7||125 mm||86 mm||77 mm||410 g||350||n||May 2015||649|
|Panasonic G6||122 mm||85 mm||71 mm||390 g||340||n||Apr 2013||599|
|Panasonic GF6||111 mm||65 mm||38 mm||323 g||340||n||Apr 2013||499|
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
(1) Number of images that can be taken on a full battery charge according to the CIPA-standard; (2) Official announcement.
The price is, of course, an important factor in any camera decision. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The GF7 was launched at a markedly lower price (by 62 percent) than the E-30, 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.
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 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. 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 tend to be more expensive and 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.
In terms of underlying technology, both cameras are build around CMOS sensors.
While the two cameras under review share the same sensor size, the GF7 offers a higher resolution of 15.8 megapixels, compared with 12.2 MP of the E-30. This megapixels advantage translates into a 14 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 4.29μm for the E-30). However, it should be noted that the GF7 is much more recent (by 6 years and 2 months) than the E-30, 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-30 are 20.2 x 15.1 inches or 51.2 x 38.4 cm for good quality, 16.1 x 12.1 inches or 41 x 30.7 cm for very good quality, and 13.4 x 10.1 inches or 34.1 x 25.6 cm for excellent quality prints.
The Olympus E-30 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.
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
|Olympus E-30||Four Thirds||12.2||4032||3024||none||21.3||10.4||530||55|
|Panasonic GF7||Four Thirds||15.8||4592||3448||1080/60p||..||..||..||..|
|Olympus E-450||Four Thirds||10.0||3648||2736||none||21.5||10.5||512||56|
|Olympus E-600||Four Thirds||12.2||4032||3024||none||21.5||10.3||541||55|
|Olympus E-620||Four Thirds||12.2||4032||3024||none||21.3||10.3||536||55|
|Olympus E-P1||Four Thirds||12.2||4032||3024||720/30p||21.4||10.4||536||55|
|Olympus E-P2||Four Thirds||12.2||4032||3024||720/30p||21.5||10.4||505||56|
|Olympus E-420||Four Thirds||10.0||3648||2736||none||21.5||10.4||527||56|
|Olympus E-520||Four Thirds||10.0||3648||2736||none||21.4||10.4||548||55|
|Olympus E-3||Four Thirds||10.0||3648||2736||none||21.6||10.5||571||56|
|Olympus E-410||Four Thirds||10.0||3648||2736||none||21.1||10.0||494||51|
|Olympus E-510||Four Thirds||10.0||3648||2736||none||21.2||10.0||442||52|
|Panasonic GX800||Four Thirds||15.8||4592||3448||4K/30p||23.2||13.3||586||73|
|Panasonic G7||Four Thirds||15.8||4592||3448||4K/30p||..||..||..||..|
|Panasonic G6||Four Thirds||15.9||4608||3456||1080/60p||21.3||11.5||639||61|
|Panasonic GF6||Four Thirds||15.8||4592||3448||1080/60i||20.7||10.6||622||54|
Many modern cameras cannot only take still pictures, but also record videos. The GF7 indeed provides for movie recording, while the E-30 does not. The highest resolution format that the GF7 can use is 1080/60p.
Beyond body and sensor, cameras can and do differ across a range of features. For example, the E-30 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-30 and Panasonic GF7 in connection with corresponding information for a sample of similar cameras.
One feature that is present on the E-30, 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-30 writes its imaging data to Compact Flash or xD Picture cards, while the GF7 uses SDXC cards. The E-30 features dual card slots, which can be very useful in case a memory card fails. In contrast, the GF7 only has one slot.
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-30 and Panasonic Lumix DMC-GF7 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
It is notable that the E-30 has a hotshoe, while the GF7 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.
Both the E-30 and the GF7 have been discontinued, but can regularly be found used on eBay. The GF7 was replaced by the Panasonic GX850, while the E-30 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 Olympus and Panasonic websites.
So what conclusions can be drawn? Is the Olympus E-30 better than the Panasonic GF7 or vice versa? The listing below highlights the relative strengths of the two models.
Reasons to prefer the Olympus E-30:
- 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.
- 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.
- 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 November 2008).
Advantages of the Panasonic Lumix DMC-GF7:
- More detail: Has more megapixels (15.8 vs 12.2MP), which boosts linear resolution by 14%.
- Broader imaging potential: Can capture not only stills but also 1080/60p video.
- Larger screen: Has a bigger rear LCD (3.0" vs 2.7") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (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 142x108mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 435g or 62 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 (62 percent cheaper at launch).
- More modern: Reflects 6 years and 2 months of technical progress since the E-30 launch.
If the count of individual advantages (bullet points above) is taken as a guide, the GF7 is the clear winner of the contest (14 : 9 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.
How about other alternatives? Do the specifications of the Olympus E-30 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 the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the E-30 or the GF7. 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.
This is why hands-on reviews by experts are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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.
|Olympus E-30||..||71/100||4.5/5||..||4/5||Nov 2008||1,299|
|Panasonic GF7||+||..||4.5/5||4.5/5||4.5/5||Jan 2015||499|
|Canon M10||..||..||..||o||4/5||Oct 2015||499|
|Olympus E-450||..||..||4/5||..||4/5||Mar 2009||499|
|Olympus E-600||..||..||..||..||4.5/5||Aug 2009||449|
|Olympus E-620||88/100||72/100||4.5/5||o||5/5||Feb 2009||699|
|Olympus E-P1||+||66/100||4/5||4/5||4.5/5||Jun 2009||799|
|Olympus E-P2||+||69/100||4/5||4.5/5||4.5/5||Nov 2009||799|
|Olympus E-420||85/100||+ +||4/5||o||4.5/5||Mar 2008||599|
|Olympus E-520||87/100||+ +||4.5/5||4/5||4.5/5||May 2008||699|
|Olympus E-3||88/100||+ +||o||o||4/5||Oct 2007||1,699|
|Olympus E-410||86/100||+ +||4/5||o||4.5/5||Mar 2007||699|
|Olympus E-510||89/100||+ +||3.5/5||o||4.5/5||Mar 2007||799|
|Panasonic GX800||+||76/100||4.5/5||4/5||4.5/5||Jan 2017||549|
|Panasonic G7||+ +||80/100||5/5||4.5/5||4.5/5||May 2015||649|
|Panasonic G6||+ +||..||5/5||..||4.5/5||Apr 2013||599|
|Panasonic GF6||+ +||..||4.5/5||..||4.5/5||Apr 2013||499|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, though. The ratings are only valid when referring to cameras in the same category and of the same age. Hence, a score should always be seen in the context of the camera's market launch date and its price, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
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 make a corresponding selection in the search boxes below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
- Canon 760D vs Panasonic GF7
- Canon G16 vs Panasonic GF7
- Nikon D200 vs Olympus E-30
- Nikon D200 vs Panasonic GF7
- Olympus E-30 vs Sony A99
- Olympus E-30 vs Sony NEX-5T
- Olympus E-330 vs Panasonic GF7
- Olympus E-PL5 vs Panasonic GF7
- Panasonic FZ2500 vs Panasonic GF7
- Panasonic GF7 vs Pentax K-3 II
- Panasonic GF7 vs Sony A6400
- Panasonic GF7 vs Sony A99
Specifications: Olympus E-30 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 Model||Olympus E-30||Panasonic GF7|
|Camera Type||Digital single lens reflex||Mirrorless system camera|
|Camera Lens||Four Thirds lenses||Micro Four Thirds lenses|
|Launch Date||November 2008||January 2015|
|Launch Price||USD 1,299||USD 499|
|Sensor Specs||Olympus E-30||Panasonic GF7|
|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|
|Sensor Resolution||12.2 Megapixels||15.8 Megapixels|
|Image Resolution||4032 x 3024 pixels||4592 x 3448 pixels|
|Pixel Pitch||4.29 μm||3.77 μm|
|Pixel Density||5.42 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)||55||..|
|DXO Color Depth (bits)||21.3||..|
|DXO Dynamic Range (EV)||10.4||..|
|DXO Low Light (ISO)||530||..|
|Screen Specs||Olympus E-30||Panasonic GF7|
|Viewfinder Type||Optical viewfinder||no viewfinder|
|Viewfinder Field of View||98%|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View||Live View|
|Rear LCD Size||2.7inch||3.0inch|
|LCD Resolution||230k dots||1040k dots|
|LCD Attachment||Swivel screen||Tilting screen|
|Touch Input||no Touchscreen||Touchscreen|
|Shooting Specs||Olympus E-30||Panasonic GF7|
|Focus System||Phase-detect AF||Contrast-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/8000s||1/500s|
|Continuous Shooting||5 shutter flaps/s||5.8 shutter flaps/s|
|Electronic Shutter||no E-Shutter||up to 1/16000s|
|Image Stabilization||In-body stabilization||Lens stabilization only|
|Fill Flash||Build-in Flash||Build-in Flash|
|Storage Medium||CF or XD cards||SDXC cards|
|Second Storage Option||Dual card slots||Single card slot|
|Connectivity Specs||Olympus E-30||Panasonic GF7|
|External Flash||Hotshoe||no Hotshoe|
|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-30||Panasonic GF7|
|Battery Life (CIPA)||750 shots per charge||230 shots per charge|
142 x 108 x 75 mm
(5.6 x 4.3 x 3.0 in)
107 x 65 x 33 mm
(4.2 x 2.6 x 1.3 in)
|Camera Weight||701 g (24.7 oz)||266 g (9.4 oz)|
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