Fujifilm X-T4 vs Olympus E-PM1
The Fujifilm X-T4 and the Olympus PEN E-PM1 are two digital cameras that were announced, respectively, in February 2020 and June 2011. Both the X-T4 and the E-PM1 are mirrorless interchangeable lens cameras that are based on an APS-C (X-T4) and a Four Thirds (E-PM1) sensor. The Fujifilm has a resolution of 26 megapixels, whereas the Olympus provides 12.2 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 Fujifilm X-T4 and the Olympus PEN E-PM1? 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 side-by-side display below illustrates the physical size and weight of the Fujifilm X-T4 and the Olympus E-PM1. 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 X-T4 can be obtained in two different colors (black, silver), while the E-PM1 is available in six color-versions (black, silver, brown, pink, purple, white).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-PM1 is considerably smaller (44 percent) than the Fujifilm X-T4. Moreover, the E-PM1 is substantially lighter (56 percent) than the X-T4. It is worth mentioning in this context that the X-T4 is splash and dust resistant, while the E-PM1 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. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Fujinon X Lens Catalog (X-T4) and the Micro Four Thirds Lens Catalog (E-PM1). Mirrorless cameras, such as the two under consideration, have the additional advantage of having a short flange to focal plane distance, which makes it possible to mount many lenses from other systems onto the camera via adapters.
Concerning battery life, the X-T4 gets 500 shots out of its NP-W235 battery, while the E-PM1 can take 330 images on a single charge of its BLS-5 power pack. The power pack in the X-T4 can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.
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, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.
|1.||Fujifilm X-T4||135 mm||93 mm||64 mm||607 g||500||Y||Feb 2020||1,699|
|2.||Olympus E-PM1||110 mm||64 mm||34 mm||265 g||330||n||Jun 2011||499|
|3.||Fujifilm X-Pro3||141 mm||83 mm||46 mm||497 g||440||Y||Oct 2019||1,799|
|4.||Fujifilm X-T3||133 mm||93 mm||59 mm||539 g||390||Y||Sep 2018||1,499|
|5.||Fujifilm X-H1||140 mm||97 mm||86 mm||673 g||310||Y||Feb 2018||1,899|
|6.||Fujifilm X-Pro2||141 mm||83 mm||46 mm||495 g||350||Y||Jan 2016||1,699|
|7.||Fujifilm X-T2||133 mm||92 mm||49 mm||507 g||340||Y||Jul 2016||1,599|
|8.||Nikon Z5||134 mm||101 mm||67 mm||675 g||470||Y||Jul 2020||1,399|
|9.||Nikon Z6 II||134 mm||101 mm||70 mm||705 g||410||Y||Oct 2020||1,999|
|10.||Olympus E-PM2||110 mm||64 mm||34 mm||269 g||360||n||Sep 2012||499|
|11.||Olympus E-P3||122 mm||69 mm||34 mm||369 g||330||n||Jun 2011||799|
|12.||Olympus E-PL2||114 mm||72 mm||42 mm||362 g||280||n||Jan 2011||599|
|13.||Olympus E-PL3||110 mm||64 mm||37 mm||313 g||300||n||Jun 2011||599|
|14.||Olympus E-PL1||115 mm||72 mm||42 mm||334 g||290||n||Feb 2010||599|
|15.||Panasonic S5||133 mm||98 mm||82 mm||714 g||440||Y||Sep 2020||1,999|
|16.||Sony A7C||124 mm||71 mm||60 mm||509 g||740||Y||Sep 2020||1,799|
|17.||Sony A6600||120 mm||67 mm||69 mm||503 g||810||Y||Aug 2019||1,399|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
Any camera decision will naturally be influenced heavily by the price. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The E-PM1 was launched at a markedly lower price (by 71 percent) than the X-T4, which puts it into a different market segment. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down.
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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.
Of the two cameras under consideration, the Fujifilm X-T4 features an APS-C sensor and the Olympus E-PM1 a Four Thirds sensor. The sensor area in the E-PM1 is 39 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 2.0. The sensor in the X-T4 has a native 3:2 aspect ratio, while the one in the E-PM1 offers a 4:3 aspect.
With 26MP, the X-T4 offers a higher resolution than the E-PM1 (12.2MP), but the X-T4 has smaller individual pixels (pixel pitch of 3.76μm versus 4.29μm for the E-PM1). However, the X-T4 is a much more recent model (by 8 years and 7 months) than the E-PM1, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that the X-T4 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Fujifilm X-T4 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the X-T4 for good quality output (200 dots per inch) amounts to 31.2 x 20.8 inches or 79.2 x 52.8 cm, for very good quality (250 dpi) 25 x 16.6 inches or 63.4 x 42.3 cm, and for excellent quality (300 dpi) 20.8 x 13.9 inches or 52.8 x 35.2 cm. The corresponding values for the Olympus E-PM1 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 X-T4 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Fujifilm X-T4 has a native sensitivity range from ISO 160 to ISO 12800, which can be extended to ISO 80-51200. The corresponding ISO settings for the Olympus PEN E-PM1 are ISO 100 to ISO 12800 (no boost).
For many cameras, data on sensor performance has been reported by DXO Mark. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
| DXO |
|2.||Olympus E-PM1||Four Thirds||12.2||4032||3024||1080/60i||21.0||10.3||499||52|
|8.||Nikon Z5||Full Frame||24.2||6016||4016||4K/30p||..||..||..||..|
|9.||Nikon Z6 II||Full Frame||24.3||6048||4024||4K/60p||..||..||..||..|
|10.||Olympus E-PM2||Four Thirds||15.9||4608||3456||1080/30p||22.7||12.2||932||72|
|11.||Olympus E-P3||Four Thirds||12.2||4032||3024||1080/60i||20.8||10.1||536||51|
|12.||Olympus E-PL2||Four Thirds||12.2||4032||3024||720/30p||21.4||10.2||573||55|
|13.||Olympus E-PL3||Four Thirds||12.2||4032||3024||1080/60i||20.9||10.3||499||52|
|14.||Olympus E-PL1||Four Thirds||12.2||4032||3024||720/30p||21.5||10.1||487||54|
|15.||Panasonic S5||Full Frame||24.0||6000||4000||4K/60p||..||..||..||..|
|16.||Sony A7C||Full Frame||24.0||6000||4000||4K/30p||25.0||14.7||3407||95|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the X-T4 provides a higher video resolution than the E-PM1. It can shoot video footage at 4K/60p, while the Olympus is limited to 1080/60i.
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the X-T4 has an electronic viewfinder (3690k dots), which can be very helpful when shooting in bright sunlight. In contrast, the E-PM1 relies on live view and the rear LCD for framing. That said, the E-PM1 can be equipped with an optional viewfinder – the VF-2. The following table reports on some other key feature differences and similarities of the Fujifilm X-T4, the Olympus E-PM1, and comparable cameras.
|9.||Nikon Z6 II||3690||Y||3.2||2100||tilting||Y||1/8000s||14.0||n||Y|
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The X-T4 has a touchscreen, while the E-PM1 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.The X-T4 has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the E-PM1 does not have a selfie-screen.
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 X-T4 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 Fujifilm X-T4 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 X-T4 and the E-PM1 write their files to SDXC cards. The X-T4 features dual card slots, which can be very useful in case a memory card fails. In contrast, the E-PM1 only has one slot. The X-T4 supports UHS-II cards (on both slots), while the E-PM1 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 Fujifilm X-T4 and Olympus PEN E-PM1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|9.||Nikon Z6 II||Y||stereo||mono||Y||Y||micro||3.2||Y||-||Y|
It is notable that the X-T4 has a microphone port, which is missing on the E-PM1. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.
Studio photographers will appreciate that the Fujifilm X-T4 (unlike the E-PM1) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
The X-T4 is a recent model that features in the current product line-up of Fujifilm. In contrast, the E-PM1 has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the E-PM1 was succeeded by the Olympus E-PM2. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Fujifilm and Olympus websites.
So what is the bottom line? Is the Fujifilm X-T4 better than the Olympus E-PM1 or vice versa? The listing below highlights the relative strengths of the two models.
Reasons to prefer the Fujifilm X-T4:
- More detail: Offers more megapixels (26 vs 12.2MP) with a 49% higher linear resolution.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better image quality: Features a larger and more technologically advanced imaging sensor.
- Richer colors: The sensor size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
- Better video: Provides higher definition movie capture (4K/60p vs 1080/60i).
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Easier framing: Has an electronic viewfinder for image composition and settings control.
- More detailed LCD: Has a higher resolution rear screen (1620k vs 460k dots).
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (15 vs 5.5 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.
- Longer lasting: Can take more shots (500 versus 330) on a single battery charge.
- Easier travel charging: Can be conveniently charged via its USB port.
- Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
- Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- 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.
- Faster buffer clearing: Supports Ultra High Speed (UHS-II) SDXC cards on both slots.
- More modern: Reflects 8 years and 7 months of technical progress since the E-PM1 launch.
Arguments in favor of the Olympus PEN E-PM1:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- More compact: Is smaller (110x64mm vs 135x93mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 342g or 56 percent) and is thus easier to take along.
- More affordable: Was introduced into a lower priced category (71 percent cheaper at launch).
- More heavily discounted: Has been around for much longer (launched in June 2011).
If the count of relative strengths (bullet points above) is taken as a measure, the X-T4 is the clear winner of the match-up (28 : 5 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. A professional wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.
How about other alternatives? Do the specifications of the Fujifilm X-T4 and the Olympus E-PM1 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera listing whether the two cameras rank among the cream of the crop.
In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the X-T4 or the E-PM1. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.
This is why hands-on reviews by experts are important. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (amateurphotographer [AP], cameralabs [CL], 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.||Fujifilm X-T4||5/5||+ +||..||5/5||5/5||Feb 2020||1,699|
|2.||Olympus E-PM1||..||86/100||71/100||4.5/5||4.5/5||Jun 2011||499|
|3.||Fujifilm X-Pro3||4/5||+||85/100||4/5||..||Oct 2019||1,799|
|4.||Fujifilm X-T3||5/5||+ +||88/100||5/5||5/5||Sep 2018||1,499|
|5.||Fujifilm X-H1||..||+||86/100||4.5/5||4.5/5||Feb 2018||1,899|
|6.||Fujifilm X-Pro2||..||+||83/100||4.5/5||4.5/5||Jan 2016||1,699|
|7.||Fujifilm X-T2||5/5||+ +||86/100||4.5/5||5/5||Jul 2016||1,599|
|8.||Nikon Z5||4/5||..||89/100||4.5/5||4/5||Jul 2020||1,399|
|9.||Nikon Z6 II||4.5/5||..||89/100||4.5/5||4.5/5||Oct 2020||1,999|
|10.||Olympus E-PM2||3/5||..||77/100||5/5||4.5/5||Sep 2012||499|
|11.||Olympus E-P3||..||83/100||74/100||4.5/5||4.5/5||Jun 2011||799|
|12.||Olympus E-PL2||3/5||83/100||71/100||4.5/5||4.5/5||Jan 2011||599|
|13.||Olympus E-PL3||3/5||+ +||72/100||4.5/5||4/5||Jun 2011||599|
|14.||Olympus E-PL1||..||86/100||69/100||4/5||4.5/5||Feb 2010||599|
|15.||Panasonic S5||4.5/5||+ +||..||4.5/5||4.5/5||Sep 2020||1,999|
|16.||Sony A7C||3.5/5||..||86/100||4/5||4/5||Sep 2020||1,799|
|17.||Sony A6600||4/5||+||83/100||4.5/5||4/5||Aug 2019||1,399|
|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. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
Other camera comparisons
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Specifications: Fujifilm X-T4 vs Olympus E-PM1
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 X-T4||Olympus E-PM1|
|Camera Type||Mirrorless system camera||Mirrorless system camera|
|Camera Lens||Fujifilm X mount lenses||Micro Four Thirds lenses|
|Launch Date||February 2020||June 2011|
|Launch Price||USD 1,699||USD 499|
|Sensor Specs||Fujifilm X-T4||Olympus E-PM1|
|Sensor Format||APS-C Sensor||Four Thirds Sensor|
|Sensor Size||23.5 x 15.6 mm||17.3 x 13.0 mm|
|Sensor Area||366.6 mm2||224.9 mm2|
|Sensor Diagonal||28.2 mm||21.6 mm|
|Sensor Resolution||26 Megapixels||12.2 Megapixels|
|Image Resolution||6240 x 4160 pixels||4032 x 3024 pixels|
|Pixel Pitch||3.76 μm||4.29 μm|
|Pixel Density||7.08 MP/cm2||5.42 MP/cm2|
|Moiré control||no AA filter||Anti-Alias filter|
|Movie Capability||4K/60p Video||1080/60i Video|
|ISO Setting||160 - 12,800 ISO||100 - 12,800 ISO|
|ISO Boost||80 - 51,200 ISO||no Enhancement|
|Image Processor||X-Processor 4||TruePic VI|
|DXO Sensor Quality (score)||..||52|
|DXO Color Depth (bits)||..||21.0|
|DXO Dynamic Range (EV)||..||10.3|
|DXO Low Light (ISO)||..||499|
|Screen Specs||Fujifilm X-T4||Olympus E-PM1|
|Viewfinder Type||Electronic viewfinder||Viewfinder optional|
|Viewfinder Field of View||100%|
|Viewfinder Resolution||3690k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1620k dots||460k dots|
|LCD Attachment||Swivel screen||Fixed screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Fujifilm X-T4||Olympus E-PM1|
|Focus System||On-Sensor Phase-detect||Contrast-detect AF|
|Manual Focusing Aid||Focus Peaking||no Peaking Feature|
|Continuous Shooting||15 shutter flaps/s||5.5 shutter flaps/s|
|Electronic Shutter||up to 1/32000s||no E-Shutter|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|Image Stabilization||In-body stabilization||In-body stabilization|
|Fill Flash||no On-Board Flash||no On-Board Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Dual card slots||Single card slot|
|UHS card support||Dual UHS-II||no|
|Connectivity Specs||Fujifilm X-T4||Olympus E-PM1|
|Studio Flash||PC Sync socket||no PC Sync|
|USB Connector||USB 3.1||USB 2.0|
|HDMI Port||micro HDMI||mini HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Wifi Support||Wifi built-in||no Wifi|
|Bluetooth Support||Bluetooth built-in||no Bluetooth|
|Body Specs||Fujifilm X-T4||Olympus E-PM1|
|Environmental Sealing||Weathersealed body||not weather sealed|
|Battery Life (CIPA)||500 shots per charge||330 shots per charge|
|In-Camera Charging||USB charging||no USB charging|
135 x 93 x 64 mm
(5.3 x 3.7 x 2.5 in)
110 x 64 x 34 mm
(4.3 x 2.5 x 1.3 in)
|Camera Weight||607 g (21.4 oz)||265 g (9.3 oz)|
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