Panasonic FZ2500 vs G3
The Panasonic Lumix DMC-FZ2500 (called Panasonic FZ2000 in some regions) and the Panasonic Lumix DMC-G3 are two digital cameras that were revealed to the public, respectively, in September 2016 and May 2011. The FZ2500 is a fixed lens compact, while the G3 is a mirrorless interchangeable lens camera. The cameras are based on an one-inch (FZ2500) and a Four Thirds (G3) sensor. The FZ2500 has a resolution of 20 megapixels, whereas the G3 provides 15.8 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DMC-FZ2500 and the Panasonic Lumix DMC-G3? 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.
An illustration of the physical size and weight of the Panasonic FZ2500 and the Panasonic G3 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 width, height and depth measures are rounded to the nearest millimeter.
The G3 can be obtained in four different colors (black, brown, red, white), while the FZ2500 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 G3 is considerably smaller (31 percent) than the Panasonic FZ2500. In this context, it is worth noting that neither the FZ2500 nor the G3 are weather-sealed.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the FZ2500 has a lens built in, whereas the G3 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 G3 and their specifications in the Micro Four Thirds Lens Catalog.
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.
|1.||Panasonic FZ2500||138 mm||102 mm||135 mm||915 g||350||n||Sep 2016||1,199|
|2.||Panasonic G3||115 mm||84 mm||47 mm||336 g||270||n||May 2011||599|
|3.||Fujifilm X100F||127 mm||75 mm||52 mm||469 g||390||n||Jan 2017||1,299|
|4.||Kodak AZ901||139 mm||104 mm||119 mm||777 g||400||n||Jan 2016||499|
|5.||Leica V-LUX 5||136 mm||97 mm||131 mm||812 g||350||n||Jul 2019||1,249|
|6.||Leica V-LUX Typ 114||137 mm||99 mm||131 mm||830 g||360||n||Sep 2014||1,349|
|7.||Panasonic FZ1000 II||136 mm||97 mm||131 mm||810 g||350||n||Feb 2019||899|
|8.||Panasonic ZS70||112 mm||67 mm||41 mm||322 g||380||n||Apr 2017||449|
|9.||Panasonic FZ1000||137 mm||99 mm||131 mm||831 g||360||n||Jun 2014||899|
|10.||Panasonic G6||122 mm||85 mm||71 mm||390 g||340||n||Apr 2013||599|
|11.||Panasonic G5||120 mm||83 mm||71 mm||396 g||320||n||Jul 2012||599|
|12.||Panasonic GX1||116 mm||68 mm||39 mm||318 g||320||n||Nov 2011||699|
|13.||Panasonic G2||124 mm||84 mm||74 mm||428 g||360||n||Mar 2010||599|
|14.||Panasonic GH2||124 mm||90 mm||76 mm||442 g||330||n||Sep 2010||899|
|15.||Sony RX100 V||102 mm||58 mm||41 mm||299 g||220||n||Oct 2016||999|
|16.||Sony RX10 II||129 mm||88 mm||102 mm||813 g||400||Y||Jun 2015||1,299|
|17.||Sony RX100 IV||102 mm||58 mm||41 mm||298 g||280||n||Jun 2015||999|
|Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
Any camera decision will obviously take relative prices into account. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. 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.
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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Panasonic FZ2500 features an one-inch sensor and the Panasonic G3 a Four Thirds sensor. The sensor area in the G3 is 94 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.7 and 2.0. The sensor in the FZ2500 has a native 3:2 aspect ratio, while the one in the G3 offers a 4:3 aspect.
Despite having a smaller sensor, the Panasonic FZ2500 offers a higher resolution of 20 megapixels, compared with 15.8 MP of the Panasonic G3. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 2.41μm versus 3.77μm for the G3). However, it should be noted that the FZ2500 is much more recent (by 5 years and 4 months) than the G3, 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 Panasonic FZ2500 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the FZ2500 for good quality output (200 dots per inch) amounts to 27.4 x 18.2 inches or 69.5 x 46.3 cm, for very good quality (250 dpi) 21.9 x 14.6 inches or 55.6 x 37.1 cm, and for excellent quality (300 dpi) 18.2 x 12.2 inches or 46.3 x 30.9 cm. The corresponding values for the Panasonic G3 are 23 x 17.2 inches or 58.3 x 43.8 cm for good quality, 18.4 x 13.8 inches or 46.7 x 35 cm for very good quality, and 15.3 x 11.5 inches or 38.9 x 29.2 cm for excellent quality prints.
The Panasonic Lumix DMC-FZ2500 has a native sensitivity range from ISO 125 to ISO 12800, which can be extended to ISO 80-25600. The corresponding ISO settings for the Panasonic Lumix DMC-G3 are ISO 160 to ISO 6400 (no boost).
Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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.
|2.||Panasonic G3||Four Thirds||15.8||4592||3448||1080/60i||21.0||10.6||667||56|
|5.||Leica V-LUX 5||1-inch||20.0||5472||3648||4K/30p||22.2||12.4||584||65|
|6.||Leica V-LUX Typ 114||1-inch||20.0||5472||3648||4K/30p||21.6||11.7||127||60|
|7.||Panasonic FZ1000 II||1-inch||20.0||5472||3648||4K/30p||22.1||12.4||546||65|
|10.||Panasonic G6||Four Thirds||15.9||4608||3456||1080/60p||21.3||11.5||639||61|
|11.||Panasonic G5||Four Thirds||15.9||4608||3456||1080/60p||22.3||11.9||643||66|
|12.||Panasonic GX1||Four Thirds||15.8||4592||3448||1080/60p||20.8||10.6||703||55|
|13.||Panasonic G2||Four Thirds||12.0||4000||3000||720/30p||21.2||10.3||493||53|
|14.||Panasonic GH2||Four Thirds||15.9||4608||3456||1080/60i||21.2||11.3||655||60|
|15.||Sony RX100 V||1-inch||20.0||5472||3648||4K/30p||22.8||12.4||586||70|
|16.||Sony RX10 II||1-inch||20.0||5472||3648||4K/30p||23.0||12.6||531||70|
|17.||Sony RX100 IV||1-inch||20.0||5472||3648||4K/30p||22.8||12.6||591||70|
|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 can also record movies. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the FZ2500 provides a higher video resolution than the G3. It can shoot video footage at 4K/30p, while the G3 is limited to 1080/60i.
Apart from body and sensor, cameras can and do differ across a range of features. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the FZ2500 offers a substantially higher resolution than the one in the G3 (2360k vs 1440k dots). The following table reports on some other key feature differences and similarities of the Panasonic FZ2500, the Panasonic G3, and comparable cameras.
|1.||Panasonic FZ2500||2360||n||3.0 / 1040||swivel||Y||1/4000s||12.0/s||Y||Y|
|2.||Panasonic G3||1440||n||3.0 / 460||swivel||Y||1/4000s||4.0/s||Y||n|
|3.||Fujifilm X100F||2360||n||3.0 / 1040||fixed||n||1/4000s||8.0/s||Y||n|
|4.||Kodak AZ901||202||n||3.0 / 920||swivel||n||1/2000s||5.0/s||Y||Y|
|5.||Leica V-LUX 5||2360||n||3.0 / 1240||swivel||Y||1/4000s||12.0/s||Y||Y|
|6.||Leica V-LUX Typ 114||2359||n||3.0 / 921||swivel||n||1/4000s||12.0/s||Y||Y|
|7.||Panasonic FZ1000 II||2360||n||3.0 / 1240||swivel||Y||1/4000s||12.0/s||Y||Y|
|8.||Panasonic ZS70||1166||n||3.0 / 1040||tilting||Y||1/2000s||10.0/s||Y||Y|
|9.||Panasonic FZ1000||2359||n||3.0 / 921||swivel||n||1/4000s||12.0/s||Y||Y|
|10.||Panasonic G6||1440||n||3.0 / 1036||swivel||Y||1/4000s||7.0/s||Y||n|
|11.||Panasonic G5||1440||n||3.0 / 920||swivel||Y||1/4000s||6.0/s||Y||n|
|12.||Panasonic GX1||optional||n||3.0 / 460||fixed||Y||1/4000s||4.2/s||Y||n|
|13.||Panasonic G2||1440||n||3.0 / 460||swivel||Y||1/4000s||2.6/s||Y||n|
|14.||Panasonic GH2||1534||n||3.0 / 460||swivel||n||1/4000s||3.0/s||Y||n|
|15.||Sony RX100 V||2359||n||3.0 / 1229||tilting||n||1/2000s||24.0/s||Y||Y|
|16.||Sony RX10 II||2359||Y||3.0 / 1229||tilting||n||1/3200s||14.0/s||Y||Y|
|17.||Sony RX100 IV||2359||n||3.0 / 1228||tilting||n||1/2000s||16.0/s||Y||Y|
|Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.|
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 FZ2500 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 Panasonic FZ2500 has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.
Concerning the storage of imaging data, both the FZ2500 and the G3 write their files to SDXC cards. The FZ2500 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the G3 cannot take advantage of Ultra High Speed SD cards.
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 Panasonic Lumix DMC-FZ2500 and Panasonic Lumix DMC-G3 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Panasonic FZ2500||Y||stereo / mono||Y||Y||micro||2.0||Y||-||-|
|2.||Panasonic G3||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|3.||Fujifilm X100F||Y||stereo / mono||Y||-||micro||2.0||Y||-||-|
|4.||Kodak AZ901||-||stereo / mono||-||-||micro||2.0||Y||-||-|
|5.||Leica V-LUX 5||Y||stereo / mono||-||-||micro||2.0||Y||-||Y|
|6.||Leica V-LUX Typ 114||Y||stereo / mono||Y||-||micro||2.0||Y||Y||-|
|7.||Panasonic FZ1000 II||Y||stereo / mono||Y||-||micro||2.0||Y||-||Y|
|8.||Panasonic ZS70||-||stereo / mono||-||-||micro||2.0||Y||-||-|
|9.||Panasonic FZ1000||Y||stereo / mono||Y||-||micro||2.0||Y||Y||-|
|10.||Panasonic G6||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|11.||Panasonic G5||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|12.||Panasonic GX1||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|13.||Panasonic G2||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|14.||Panasonic GH2||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|15.||Sony RX100 V||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|16.||Sony RX10 II||Y||stereo / mono||Y||Y||micro||2.0||Y||Y||-|
|17.||Sony RX100 IV||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
It is notable that the FZ2500 has a microphone port, which is missing on the G3. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.
The FZ2500 is a recent model that features in the current product line-up of Panasonic. In contrast, the G3 has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the G3 was succeeded by the Panasonic G5. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Panasonic website.
So how do things add up? Is the Panasonic FZ2500 better than the Panasonic G3 or vice versa? Below is a summary of the relative strengths of each of the two contestants.
Arguments in favor of the Panasonic Lumix DMC-FZ2500:
- More detail: Offers more megapixels (20 vs 15.8MP) with a 15% higher linear resolution.
- Better video: Provides higher definition movie capture (4K/30p vs 1080/60i).
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- More detailed viewfinder: Has higher resolution electronic viewfinder (2360k vs 1440k dots).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.74x vs 0.70x).
- More detailed LCD: Has a higher resolution rear screen (1040k vs 460k dots).
- Faster burst: Shoots at higher frequency (12 vs 4 flaps/sec) to capture the decisive moment.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Ready to shoot: Has a lens built-in, whereas the G3 requires a separate lens.
- Longer lasting: Can take more shots (350 versus 270) on a single battery charge.
- Sharper images: Has hand-shake reducing image stabilization built-in.
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
- More modern: Reflects 5 years and 4 months of technical progress since the G3 launch.
Reasons to prefer the Panasonic Lumix DMC-G3:
- More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
- More compact: Is smaller (115x84mm vs 138x102mm) and will fit more readily into a bag.
- More heavily discounted: Has been around for much longer (launched in May 2011).
If the number of relative strengths (bullet points above) is taken as a guide, the FZ2500 is the clear winner of the match-up (16 : 3 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 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 Panasonic FZ2500 and the Panasonic G3 place the cameras among the top in their class? Find out in the latest Best Superzoom 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 says little about, for example, the shooting experience and imaging performance of the FZ2500 and the G3 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.
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 (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.
|1.||Panasonic FZ2500||..||+||..||82/100||4.5/5||5/5||Sep 2016||1,199|
|2.||Panasonic G3||3/5||+ +||..||75/100||4.5/5||5/5||May 2011||599|
|3.||Fujifilm X100F||5/5||+||3.9/5||83/100||4.5/5||4.5/5||Jan 2017||1,299|
|4.||Kodak AZ901||..||..||..||..||3.5/5||3/5||Jan 2016||499|
|5.||Leica V-LUX 5||..||..||..||..||4/5||4/5||Jul 2019||1,249|
|6.||Leica V-LUX Typ 114||..||..||..||..||..||5/5||Sep 2014||1,349|
|7.||Panasonic FZ1000 II||..||..||..||83/100||4.5/5||4.5/5||Feb 2019||899|
|8.||Panasonic ZS70||..||+ +||..||..||4/5||4/5||Apr 2017||449|
|9.||Panasonic FZ1000||4/5||+ +||..||82/100||4.5/5||4.5/5||Jun 2014||899|
|10.||Panasonic G6||4/5||+ +||..||..||5/5||4.5/5||Apr 2013||599|
|11.||Panasonic G5||3/5||+ +||..||..||4.5/5||4.5/5||Jul 2012||599|
|12.||Panasonic GX1||3/5||+||..||77/100||4.5/5||4.5/5||Nov 2011||699|
|13.||Panasonic G2||..||..||..||72/100||4/5||4.5/5||Mar 2010||599|
|14.||Panasonic GH2||5/5||+ +||..||79/100||4.5/5||5/5||Sep 2010||899|
|15.||Sony RX100 V||4.5/5||+ +||..||83/100||4/5||4.5/5||Oct 2016||999|
|16.||Sony RX10 II||5/5||+ +||..||82/100||4.5/5||4/5||Jun 2015||1,299|
|17.||Sony RX100 IV||4.5/5||+ +||..||85/100||4/5||4.5/5||Jun 2015||999|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The review scores listed above should be treated 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. A score, therefore, has to be seen in close connection to the price and market introduction time 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. 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? In case you would like to check on the differences and similarities of other camera models, just make your choice using the following search menu. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
- Canon 6D vs Panasonic FZ2500
- Canon G5 X Mark II vs Panasonic FZ2500
- Canon M3 vs Panasonic FZ2500
- Canon M50 Mark II vs Panasonic G3
- Canon T1i vs Panasonic G3
- Canon T4i vs Panasonic G3
- Fujifilm X70 vs Panasonic G3
- Leica C-LUX vs Panasonic FZ2500
- Nikon D610 vs Panasonic G3
- Nikon W300 vs Panasonic FZ2500
- Panasonic FZ2500 vs Pentax K-5
- Panasonic G3 vs Panasonic LX5
Specifications: Panasonic FZ2500 vs Panasonic G3
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||Panasonic FZ2500||Panasonic G3|
|Camera Type||Fixed lens compact camera||Mirrorless system camera|
|Camera Lens||24-480mm f/2.8-4.5||Micro Four Thirds lenses|
|Launch Date||September 2016||May 2011|
|Launch Price||USD 1,199||USD 599|
|Sensor Specs||Panasonic FZ2500||Panasonic G3|
|Sensor Format||1" Sensor||Four Thirds Sensor|
|Sensor Size||13.2 x 8.8 mm||17.3 x 13.0 mm|
|Sensor Area||116.16 mm2||224.9 mm2|
|Sensor Diagonal||15.9 mm||21.6 mm|
|Sensor Resolution||20 Megapixels||15.8 Megapixels|
|Image Resolution||5472 x 3648 pixels||4592 x 3448 pixels|
|Pixel Pitch||2.41 μm||3.77 μm|
|Pixel Density||17.18 MP/cm2||7.04 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||4K/30p Video||1080/60i Video|
|ISO Setting||125 - 12,800 ISO||160 - 6,400 ISO|
|ISO Boost||80 - 25,600 ISO||no Enhancement|
|Image Processor||Venus||Venus FHD|
|DXO Sensor Quality (score)||..||56|
|DXO Color Depth (bits)||..||21.0|
|DXO Dynamic Range (EV)||..||10.6|
|DXO Low Light (ISO)||..||667|
|Screen Specs||Panasonic FZ2500||Panasonic G3|
|Viewfinder Type||Electronic viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||2360k dots||1440k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1040k dots||460k dots|
|LCD Attachment||Swivel screen||Swivel screen|
|Shooting Specs||Panasonic FZ2500||Panasonic G3|
|Focus System||Contrast-detect AF||Contrast-detect AF|
|Manual Focusing Aid||Focus Peaking||no Peaking Feature|
|Continuous Shooting||12 shutter flaps/s||4 shutter flaps/s|
|Electronic Shutter||up to 1/16000s||no E-Shutter|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|Fill Flash||Built-in Flash||Built-in Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-I||no|
|Connectivity Specs||Panasonic FZ2500||Panasonic G3|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||micro HDMI||mini HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Headphone Socket||Headphone port||no Headphone port|
|Wifi Support||Wifi built-in||no Wifi|
|Body Specs||Panasonic FZ2500||Panasonic G3|
|Battery Life (CIPA)||350 shots per charge||270 shots per charge|
138 x 102 x 135 mm
(5.4 x 4.0 x 5.3 in)
115 x 84 x 47 mm
(4.5 x 3.3 x 1.9 in)
|Camera Weight||915 g (32.3 oz)||336 g (11.9 oz)|
Did you notice an error on this page? If so, please get in touch, so that we can correct the information.