Fujifilm X100 vs Sony A850
The Fujifilm FinePix X100 and the Sony Alpha A850 are two digital cameras that were officially introduced, respectively, in September 2010 and August 2009. The X100 is a fixed lens compact, while the A850 is a DSLR. The cameras are based on an APS-C (X100) and a full frame (A850) sensor. The Fujifilm has a resolution of 12.2 megapixels, whereas the Sony provides 24.4 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Fujifilm X100||Sony A850|
|Fixed lens compact camera||Digital single lens reflex|
|35mm f/2.0||Sony A mount lenses|
|12.2 MP, APS-C Sensor||24.4 MP, Full Frame Sensor|
|720/30p Video||no Video|
|ISO 200-6400 (100-12800)||ISO 200-3200 (100-6400)|
|Electronic viewfinder (1440k dots)||Optical viewfinder|
|2.8" LCD, 460k dots||3.0" LCD, 922k dots|
|Fixed screen (not touch-sensitive)||Fixed screen (not touch-sensitive)|
|5 shutter flaps per second||3 shutter flaps per second|
|No shake reduction||In-body stabilization|
|Not weather sealed||Weathersealed body|
|300 shots per battery charge||880 shots per battery charge|
|126 x 75 x 54 mm, 445 g||156 x 117 x 82 mm, 895 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm FinePix X100 and the Sony Alpha A850? 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 Fujifilm X100 and the Sony A850 are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth measures are rounded to the nearest millimeter.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A850 is considerably larger (93 percent) than the Fujifilm X100. It is noteworthy in this context that the A850 is splash and dust-proof, while the X100 does not feature any corresponding weather-sealing.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the X100 has a lens built in, whereas the A850 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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.
|Fujifilm X100»||5.0 in||3.0 in||2.1 in||15.7 oz||300||n||Sep 2010||1,199||Fujifilm X100|
|Sony A850«||6.1 in||4.6 in||3.2 in||31.6 oz||880||Y||Aug 2009||1,999||Sony A850|
|Canon G1 X« »||4.6 in||3.2 in||2.6 in||18.8 oz||250||n||Jan 2012||799||Canon G1 X|
|Fujifilm X100F« »||5.0 in||3.0 in||2.0 in||16.5 oz||390||n||Jan 2017||1,299||Fujifilm X100F|
|Fujifilm X30« »||4.7 in||2.8 in||2.4 in||14.9 oz||470||n||Aug 2014||599||Fujifilm X30|
|Fujifilm X100T« »||5.0 in||2.9 in||2.0 in||15.5 oz||330||n||Sep 2014||1,299||Fujifilm X100T|
|Fujifilm X100S« »||5.0 in||2.9 in||2.1 in||15.7 oz||330||n||Jan 2013||1,299||Fujifilm X100S|
|Leica D-LUX Typ 109« »||4.6 in||2.6 in||2.2 in||14.3 oz||300||n||Sep 2014||1,195||Leica D-LUX Typ 109|
|Nikon D750« »||5.6 in||4.4 in||3.1 in||26.5 oz||1230||Y||Sep 2014||2,299||Nikon D750|
|Nikon D3100« »||4.9 in||3.8 in||3.0 in||17.8 oz||550||n||Aug 2010||599||Nikon D3100|
|Nikon D3000« »||5.0 in||3.8 in||2.5 in||18.9 oz||500||n||Jul 2009||599||Nikon D3000|
|Panasonic LX100« »||4.5 in||2.6 in||2.2 in||13.9 oz||300||n||Sep 2014||899||Panasonic LX100|
|Sony A7 II« »||5.0 in||3.8 in||2.4 in||21.1 oz||350||Y||Nov 2014||1,999||Sony A7 II|
|Sony A7« »||5.0 in||3.7 in||1.9 in||16.7 oz||340||Y||Oct 2013||1,699||Sony A7|
|Sony A99« »||5.8 in||4.4 in||3.1 in||28.6 oz||500||Y||Sep 2012||2,799||Sony A99|
|Sony NEX-7« »||4.7 in||2.6 in||1.7 in||14.1 oz||430||n||Aug 2011||1,349||Sony NEX-7|
|Sony A900« »||6.1 in||4.6 in||3.2 in||31.6 oz||880||Y||Sep 2008||2,999||Sony A900|
|Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.|
Any camera decision will obviously take relative prices into account. 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 X100 was launched at a lower price than the A850, despite having a lens built in. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
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.
Of the two cameras under consideration, the Fujifilm X100 features an APS-C sensor and the Sony A850 a full frame sensor. The sensor area in the A850 is 131 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors.
With 24.4MP, the A850 offers a higher resolution than the X100 (12.2MP), but the A850 nevertheless has larger individual pixels (pixel pitch of 5.94μm versus 5.53μm for the X100) due to its larger sensor. However, the X100 is a somewhat more recent model (by 1 year) than the A850, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units.
The resolution advantage of the Sony A850 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A850 for good quality output (200 dots per inch) amounts to 30.2 x 20.2 inch or 76.8 x 51.2 cm, for very good quality (250 dpi) 24.2 x 16.1 inch or 61.4 x 41 cm, and for excellent quality (300 dpi) 20.2 x 13.4 inch or 51.2 x 34.1 cm. The corresponding values for the Fujifilm X100 are 21.4 x 14.2 inch or 54.5 x 36.2 cm for good quality, 17.2 x 11.4 inch or 43.6 x 28.9 cm for very good quality, and 14.3 x 9.5 inch or 36.3 x 24.1 cm for excellent quality prints.
The Fujifilm FinePix X100 has a native sensitivity range from ISO 200 to ISO 6400, which can be extended to ISO 100-12800. The corresponding ISO settings for the Sony Alpha A850 are ISO 200 to ISO 3200, with the possibility to increase the ISO range to 100-6400.
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"). Of the two cameras under consideration, the A850 has a markedly higher DXO score than the X100 (overall score 6 points higher), which will translate into better image quality. The advantage is based on 0.9 bits higher color depth, 0.2 EV of lower dynamic range, and 0.5 stops in additional low light sensitivity. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
|Fujifilm X100||APS-C||12.2||4288||2848||720/30p||22.9||12.4||1001||73||Fujifilm X100|
|Sony A850||Full Frame||24.4||6048||4032||none||23.8||12.2||1415||79||Sony A850|
|Canon G1 X||1.5-inch||14.2||4352||3264||1080/24p||21.7||10.8||644||60||Canon G1 X|
|Fujifilm X100F||APS-C||24.0||6000||4000||1080/60p||..||..||..||..||Fujifilm X100F|
|Fujifilm X30||2/3||12.0||4000||3000||1080/60p||..||..||..||..||Fujifilm X30|
|Fujifilm X100T||APS-C||16.0||4896||3264||1080/60p||..||..||..||..||Fujifilm X100T|
|Fujifilm X100S||APS-C||16.0||4896||3264||1080/60p||..||..||..||..||Fujifilm X100S|
|Leica D-LUX Typ 109||Four Thirds||12.7||4112||3088||4K/30p||..||..||..||..||Leica D-LUX Typ 109|
|Nikon D750||Full Frame||24.2||6016||4016||1080/60p||24.8||14.5||2956||93||Nikon D750|
|Nikon D3100||APS-C||14.2||4608||3072||1080/24p||22.5||11.3||919||67||Nikon D3100|
|Nikon D3000||APS-C||10.0||3872||2592||none||22.3||11.1||563||62||Nikon D3000|
|Panasonic LX100||Four Thirds||12.7||4112||3088||4K/30p||22.3||12.5||553||67||Panasonic LX100|
|Sony A7 II||Full Frame||24.0||6000||4000||1080/60p||24.9||13.6||2449||90||Sony A7 II|
|Sony A7||Full Frame||24.0||6000||4000||1080/60p||24.8||14.2||2248||90||Sony A7|
|Sony A99||Full Frame||24.0||6000||4000||1080/60p||25.0||14.0||1555||89||Sony A99|
|Sony NEX-7||APS-C||24.0||6000||4000||1080/60i||24.1||13.4||1016||81||Sony NEX-7|
|Sony A900||Full Frame||24.4||6048||4032||none||23.7||12.3||1431||79||Sony A900|
Many modern cameras are not only capable of taking still images, but can also record movies. The X100 indeed provides movie recording capabilities, while the A850 does not. The highest resolution format that the X100 can use is 720/30p.
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the X100 has an electronic viewfinder (1440k dots), while the A850 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 viewfinder in the X100 offers a wider field of view (100%) than the one in the A850 (98%), so that a larger proportion of the captured image is visible in the finder. On the other hand, the viewfinder of the A850 has a higher magnification (0.74x vs 0.50x), 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 Fujifilm X100 and Sony A850 in connection with corresponding information for a sample of similar cameras.
|Fujifilm X100||1440||n||2.8||460||fixed||n||1/4000s||5.0||Y||n||Fujifilm X100|
|Sony A850||optical||Y||3.0||922||fixed||n||1/8000s||3.0||n||Y||Sony A850|
|Canon G1 X||optical||n||3.0||922||Swivel||n||1/4000s||1.9||Y||Y||Canon G1 X|
|Fujifilm X100F||2360||n||3.0||1040||fixed||n||1/4000s||8.0||Y||n||Fujifilm X100F|
|Fujifilm X30||2360||n||3.0||920||tilting||n||1/4000s||12.0||Y||Y||Fujifilm X30|
|Fujifilm X100T||2360||n||3.0||1040||fixed||n||1/4000s||6.0||Y||n||Fujifilm X100T|
|Fujifilm X100S||2360||n||2.8||460||fixed||n||1/4000s||6.0||Y||n||Fujifilm X100S|
|Leica D-LUX Typ 109||2764||n||3.0||921||fixed||n||1/4000s||11.0||n||Y||Leica D-LUX Typ 109|
|Nikon D750||optical||Y||3.2||1229||tilting||n||1/4000s||6.0||Y||n||Nikon D750|
|Nikon D3100||optical||n||3.0||230||fixed||n||1/4000s||3.0||Y||n||Nikon D3100|
|Nikon D3000||optical||n||3.0||230||fixed||n||1/4000s||3.0||Y||n||Nikon D3000|
|Panasonic LX100||2764||n||3.0||921||fixed||n||1/4000s||11.0||n||Y||Panasonic LX100|
|Sony A7 II||2400||n||3.0||1230||tilting||n||1/8000s||5.0||n||Y||Sony A7 II|
|Sony A7||2400||n||3.0||1230||tilting||n||1/8000s||5.0||n||n||Sony A7|
|Sony A99||2359||Y||3.0||1229||full-flex||n||1/8000s||6.0||n||Y||Sony A99|
|Sony NEX-7||2359||n||3.0||921||tilting||n||1/4000s||10.0||Y||n||Sony NEX-7|
|Sony A900||optical||Y||3.0||922||fixed||n||1/8000s||5.0||n||Y||Sony A900|
One difference between the cameras concerns the presence of an on-board flash. The X100 has one, while the A850 does not. While the built-in flash of the X100 is not very powerful, it can at times be useful as a fill-in light.
The X100 writes its imaging data to SDXC cards, while the A850 uses Compact Flash or Memory Stick PRO Duo cards. The A850 features dual card slots, which can be very useful in case a memory card fails. In contrast, the X100 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 Fujifilm FinePix X100 and Sony Alpha A850 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Fujifilm X100||Y||stereo||none||-||-||mini||2.0||-||-||-||Fujifilm X100|
|Sony A850||Y||none||none||-||-||mini||2.0||-||-||-||Sony A850|
|Canon G1 X||Y||stereo||mono||-||-||mini||2.0||-||-||-||Canon G1 X|
|Fujifilm X100F||Y||stereo||mono||Y||-||micro||2.0||Y||-||-||Fujifilm X100F|
|Fujifilm X30||Y||stereo||mono||-||-||micro||2.0||Y||-||-||Fujifilm X30|
|Fujifilm X100T||Y||stereo||mono||Y||-||micro||2.0||Y||-||-||Fujifilm X100T|
|Fujifilm X100S||Y||stereo||mono||-||-||micro||2.0||-||-||-||Fujifilm X100S|
|Leica D-LUX Typ 109||Y||stereo||mono||-||-||micro||2.0||Y||Y||-||Leica D-LUX Typ 109|
|Nikon D750||Y||stereo||mono||Y||Y||mini||2.0||Y||-||-||Nikon D750|
|Nikon D3100||Y||mono||mono||-||-||mini||2.0||-||-||-||Nikon D3100|
|Nikon D3000||Y||none||none||-||-||none||2.0||-||-||-||Nikon D3000|
|Panasonic LX100||Y||stereo||mono||-||-||micro||2.0||Y||Y||-||Panasonic LX100|
|Sony A7 II||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7 II|
|Sony A7||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7|
|Sony A99||Y||stereo||mono||Y||Y||mini||2.0||-||-||-||Sony A99|
|Sony NEX-7||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Sony NEX-7|
|Sony A900||Y||none||none||-||-||mini||2.0||-||-||-||Sony A900|
Studio photographers will appreciate that the Sony A850 (unlike the X100) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the X100 and the A850 have been discontinued, but can regularly be found used on eBay. The X100 was replaced by the Fujifilm X100S, while the A850 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 Fujifilm and Sony websites.
So how do things add up? Is there a clear favorite between the Fujifilm X100 and the Sony A850? Which camera is better? The listing below highlights the relative strengths of the two models.
Advantages of the Fujifilm FinePix X100:
- Broader imaging potential: Can record not only still images but also 720/30p movies.
- More framing info: Has an electronic viewfinder that displays shooting data.
- More complete view: Has a viewfinder with a larger field of view (100% vs 98%).
- Faster burst: Shoots at higher frequency (5 vs 3 flaps/sec) to capture the decisive moment.
- Ready to shoot: Comes with a built-in lens, while the A850 requires a separate lens.
- More compact: Is smaller (126x75mm vs 156x117mm) and thus needs less room in the bag.
- Less heavy: Is lighter even though it comes with a built-in lens (unlike the A850).
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More modern: Is somewhat more recent (announced 1 year after the A850).
Reasons to prefer the Sony Alpha A850:
- More detail: Has more megapixels (24.4 vs 12.2MP), which boosts linear resolution by 41%.
- Better image quality: Scores markedly higher (6 points) in the DXO overall evaluation.
- Better low-light sensitivity: Can shoot in dim conditions (0.5 stops ISO advantage).
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.74x vs 0.50x).
- Easier setting verification: Features a control panel on top to check shooting parameters.
- Larger screen: Has a bigger rear LCD (3.0" vs 2.8") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (922k vs 460k dots).
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- More flexible: Makes it possible to change lenses and thus to use specialty optics.
- Longer lasting: Gets more shots (880 versus 300) out of a single battery charge.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- 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 on the market for longer (launched in August 2009).
If the count of individual advantages (bullet points above) is taken as a guide, the A850 is the clear winner of the contest (16 : 10 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 Fujifilm X100 and the Sony A850 place the cameras among the top in their class? Find out in the latest Best Prime Lens Compact Camera and Best DSLR Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains incomplete and does no justice, for example, to the way the X100 or the A850 perform in practice. 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 adjacent summary-table relays the overall verdicts of several of the most popular camera 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.
Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Hence, a score should always be seen in the context of the camera's market launch date and its price, 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.
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 a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
- Canon 400D vs Fujifilm X100
- Fujifilm X100 vs Nikon D5100
- Fujifilm X100 vs Olympus E-P3
- Fujifilm X100 vs Panasonic FZ330
- Fujifilm X100 vs Panasonic S1R
- Fujifilm X100 vs Sony A6400
- Leica M Typ 240 vs Sony A850
- Leica Q Typ 116 vs Sony A850
- Olympus E-M10 vs Sony A850
- Panasonic FZ1000 II vs Sony A850
- Panasonic GM5 vs Sony A850
- Sony A7 vs Sony A850
Specifications: Fujifilm X100 vs Sony A850
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||Fujifilm X100||Sony A850|
|Camera Type||Fixed lens compact camera||Digital single lens reflex|
|Camera Lens||35mm f/2.0||Sony A mount lenses|
|Launch Date||September 2010||August 2009|
|Launch Price||USD 1199||USD 1999|
|Sensor Specs||Fujifilm X100||Sony A850|
|Sensor Format||APS-C Sensor||Full Frame Sensor|
|Sensor Size||23.6 x 15.8 mm||35.9 x 24.0 mm|
|Sensor Area||372.88 mm2||861.6 mm2|
|Sensor Diagonal||28.4 mm||43.2 mm|
|Sensor Resolution||12.2 Megapixels||24.4 Megapixels|
|Image Resolution||4288 x 2848 pixels||6048 x 4032 pixels|
|Pixel Pitch||5.53 μm||5.94 μm|
|Pixel Density||3.28 MP/cm2||2.83 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||720/30p Video||no Video|
|ISO Setting||200-6400 ISO||200-3200 ISO|
|ISO Boost||100-12800 ISO||100-6400 ISO|
|Image Processor||EXR Processor||BIONZ|
|DXO Sensor Quality (score)||73||79|
|DXO Color Depth (bits)||22.9||23.8|
|DXO Dynamic Range (EV)||12.4||12.2|
|DXO Low Light (ISO)||1001||1415|
|Screen Specs||Fujifilm X100||Sony A850|
|Viewfinder Type||Electronic viewfinder||Optical viewfinder|
|Viewfinder Field of View||100%||98%|
|Viewfinder Resolution||1440k dots|
|Top-Level Screen||no Top Display||Control Panel|
|LCD Framing||Live View|
|Rear LCD Size||2.8 inch||3.0 inch|
|LCD Resolution||460k dots||922k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Fujifilm X100||Sony A850|
|Focus System||Contrast-detect AF||Phase-detect AF|
|Continuous Shooting||5 shutter flaps/s||3 shutter flaps/s|
|Image Stabilization||No shake reduction||In-body stabilization|
|Fill Flash||Build-in Flash||no On-Board Flash|
|Storage Medium||SDXC cards||CF or MS cards|
|Second Storage Option||Single card slot||Dual card slots|
|Connectivity Specs||Fujifilm X100||Sony A850|
|Studio Flash||no PC Sync||PC Sync socket|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||mini HDMI|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Fujifilm X100||Sony A850|
|Environmental Sealing||Not weather sealed||Weathersealed body|
|Battery Life (CIPA)||300 shots per charge||880 shots per charge|
126 x 75 x 54 mm
(5.0 x 3.0 x 2.1 in)
156 x 117 x 82 mm
(6.1 x 4.6 x 3.2 in)
|Camera Weight||445 g (15.7 oz)||895 g (31.6 oz)|
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