Olympus E-420 vs Sony A7R IV
The Olympus E-420 and the Sony Alpha A7R IV are two digital cameras that were announced, respectively, in March 2008 and July 2019. The E-420 is a DSLR, while the A7R IV is a mirrorless interchangeable lens camera. The cameras are based on a Four Thirds (E-420) and a full frame (A7R IV) sensor. The Olympus has a resolution of 10 megapixels, whereas the Sony provides 60.2 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Olympus E-420||Sony A7R IV|
|Digital single lens reflex||Mirrorless system camera|
|Four Thirds lenses||Sony E mount lenses|
|10 MP, Four Thirds Sensor||60.2 MP, Full Frame Sensor|
|no Video||4K/30p Video|
|ISO 100-1600||ISO 100-32000 (50-102400)|
|Optical viewfinder||Electronic viewfinder (5760k dots)|
|2.7" LCD, 215k dots||3.0" LCD, 1440k dots|
|Fixed screen (not touch-sensitive)||Tilting touchscreen|
|3.5 shutter flaps per second||10 shutter flaps per second|
|Lens stabilization only||In-body stabilization|
|Not weather sealed||Weathersealed body|
|500 shots per battery charge||670 shots per battery charge|
|130 x 91 x 53 mm, 440 g||129 x 96 x 78 mm, 665 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus E-420 and the Sony Alpha A7R IV? 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-420 and the Sony A7R IV are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth dimensions 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 A7R IV is somewhat larger (5 percent) than the Olympus E-420. Moreover, the A7R IV is substantially heavier (51 percent) than the E-420. It is noteworthy in this context that the A7R IV is splash and dust-proof, while the E-420 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 Four Thirds Lens Catalog (E-420) and the Sony FE Lens Catalog (A7R IV). Mirrorless cameras, such as the A7R IV, 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-420 gets 500 shots out of its BLS-1 battery, while the A7R IV can take 670 images on a single charge of its NP-FZ100 power pack. The power pack in the A7R IV can be charged via the USB port, which can be very convenient when travelling.
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, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.
|Olympus E-420»||5.1 in||3.6 in||2.1 in||15.5 oz||500||n||Mar 2008||599||Olympus E-420|
|Sony A7R IV«||5.1 in||3.8 in||3.1 in||23.5 oz||670||Y||Jul 2019||3,499||Sony A7R IV|
|Nikon D3000« »||5.0 in||3.8 in||2.5 in||18.9 oz||500||n||Jul 2009||599||Nikon D3000|
|Nikon D60« »||5.0 in||3.7 in||2.5 in||18.4 oz||500||n||Jan 2008||629||Nikon D60|
|Nikon D40X« »||4.9 in||3.7 in||2.5 in||18.4 oz||520||n||Mar 2007||729||Nikon D40X|
|Olympus E-450« »||5.1 in||3.6 in||2.1 in||15.5 oz||500||n||Mar 2009||499||Olympus E-450|
|Olympus E-600« »||5.1 in||3.7 in||2.4 in||18.9 oz||500||n||Aug 2009||449||Olympus E-600|
|Olympus E-620« »||5.1 in||3.7 in||2.4 in||18.4 oz||500||n||Feb 2009||699||Olympus E-620|
|Olympus E-520« »||5.4 in||3.6 in||2.7 in||18.9 oz||750||n||May 2008||699||Olympus E-520|
|Olympus E-410« »||5.1 in||3.6 in||2.1 in||15.3 oz||500||n||Mar 2007||699||Olympus E-410|
|Olympus E-400« »||5.1 in||3.6 in||2.1 in||15.3 oz||500||n||Sep 2006||699||Olympus E-400|
|Panasonic L10« »||5.3 in||3.8 in||3.1 in||19.6 oz||450||n||Aug 2007||599||Panasonic L10|
|Sony A9 II« »||5.1 in||3.8 in||3.0 in||23.9 oz||690||Y||Oct 2019||4,499||Sony A9 II|
|Sony A7 III« »||5.0 in||3.8 in||2.9 in||22.9 oz||610||Y||Feb 2018||1,999||Sony A7 III|
|Sony A7R III« »||5.0 in||3.8 in||2.9 in||22.9 oz||650||Y||Oct 2017||3,199||Sony A7R III|
|Sony A7R II« »||5.0 in||3.8 in||2.4 in||22.0 oz||290||Y||Jun 2015||3,199||Sony A7R II|
|Sony A7S II« »||5.0 in||3.8 in||2.4 in||22.1 oz||370||Y||Sep 2015||2,999||Sony A7S II|
|Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.|
The price is, of course, an important factor in any camera decision. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The E-420 was launched at a markedly lower price (by 83 percent) than the A7R IV, 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
The size of the sensor inside a digital camera is one of the key determinants of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixels in a sensor of the same technological generation. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Olympus E-420 features a Four Thirds sensor and the Sony A7R IV a full frame sensor. The sensor area in the A7R IV is 278 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 1.0. The sensor in the E-420 has a native 4:3 aspect ratio, while the one in the A7R IV offers a 3:2 aspect.
With 60.2MP, the A7R IV offers a higher resolution than the E-420 (10MP), but the A7R IV has smaller individual pixels (pixel pitch of 3.76μm versus 4.74μm for the E-420). Yet, the A7R IV is a much more recent model (by 11 years and 4 months) than the E-420, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the A7R IV has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Sony A7R IV implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7R IV for good quality output (200 dots per inch) amounts to 47.5 x 31.7 inch or 120.7 x 80.5 cm, for very good quality (250 dpi) 38 x 25.3 inch or 96.6 x 64.4 cm, and for excellent quality (300 dpi) 31.7 x 21.1 inch or 80.5 x 53.6 cm. The corresponding values for the Olympus E-420 are 18.2 x 13.7 inch or 46.3 x 34.7 cm for good quality, 14.6 x 10.9 inch or 37.1 x 27.8 cm for very good quality, and 12.2 x 9.1 inch or 30.9 x 23.2 cm for excellent quality prints.
The A7R IV has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
Unlike the E-420, the A7R IV has the capacity to capture high quality composite images (241MP) by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).
The Olympus E-420 has a native sensitivity range from ISO 100 to ISO 1600. The corresponding ISO settings for the Sony Alpha A7R IV are ISO 100 to ISO 32000, with the possibility to increase the ISO range to 50-102400.
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). 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-420||Four Thirds||10.0||3648||2736||none||21.5||10.4||527||56||Olympus E-420|
|Sony A7R IV||Full Frame||60.2||9504||6336||4K/30p||..||..||..||..||Sony A7R IV|
|Nikon D3000||APS-C||10.0||3872||2592||none||22.3||11.1||563||62||Nikon D3000|
|Nikon D60||APS-C||10.0||3872||2592||none||22.5||11.4||562||65||Nikon D60|
|Nikon D40X||APS-C||10.0||3872||2592||none||22.4||11.4||516||63||Nikon D40X|
|Olympus E-450||Four Thirds||10.0||3648||2736||none||21.5||10.5||512||56||Olympus E-450|
|Olympus E-600||Four Thirds||12.2||4032||3024||none||21.5||10.3||541||55||Olympus E-600|
|Olympus E-620||Four Thirds||12.2||4032||3024||none||21.3||10.3||536||55||Olympus E-620|
|Olympus E-520||Four Thirds||10.0||3648||2736||none||21.4||10.4||548||55||Olympus E-520|
|Olympus E-410||Four Thirds||10.0||3648||2736||none||21.1||10.0||494||51||Olympus E-410|
|Olympus E-400||Four Thirds||10.0||3648||2736||none||..||..||..||..||Olympus E-400|
|Panasonic L10||Four Thirds||10.0||3648||2736||none||21.3||10.8||429||55||Panasonic L10|
|Sony A9 II||Full Frame||24.0||6000||4000||4K/30p||25.0||14.0||3434||93||Sony A9 II|
|Sony A7 III||Full Frame||24.0||6000||4000||4K/30p||25.0||14.7||3730||96||Sony A7 III|
|Sony A7R III||Full Frame||42.2||7952||5304||4K/30p||26.0||14.7||3523||100||Sony A7R III|
|Sony A7R II||Full Frame||42.2||7952||5304||4K/30p||26.0||13.9||3434||98||Sony A7R II|
|Sony A7S II||Full Frame||12.0||4240||2832||4K/30p||23.6||13.3||2993||85||Sony A7S II|
Many modern cameras cannot only take still pictures, but also record videos. The A7R IV indeed provides for movie recording, while the E-420 does not. The highest resolution format that the A7R IV can use is 4K/30p.
Beyond body and sensor, cameras can and do differ across a range of features. For example, the A7R IV has an electronic viewfinder (5760k dots), while the E-420 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 A7R IV offers a wider field of view (100%) than the one in the E-420 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the A7R IV has a higher magnification (0.78x vs 0.46x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The following table reports on some other key feature differences and similarities of the Olympus E-420, the Sony A7R IV, and comparable cameras.
|Olympus E-420||optical||n||2.7||215||fixed||n||1/4000s||3.5||Y||n||Olympus E-420|
|Sony A7R IV||5760||n||3.0||1440||tilting||Y||1/8000s||10.0||n||Y||Sony A7R IV|
|Nikon D3000||optical||n||3.0||230||fixed||n||1/4000s||3.0||Y||n||Nikon D3000|
|Nikon D60||optical||n||2.5||230||fixed||n||1/4000s||3.0||Y||n||Nikon D60|
|Nikon D40X||optical||n||2.5||230||fixed||n||1/4000s||3.0||Y||n||Nikon D40X|
|Olympus E-450||optical||n||2.7||215||fixed||n||1/4000s||3.5||Y||n||Olympus E-450|
|Olympus E-600||optical||n||2.7||230||swivel||n||1/4000s||4.0||Y||Y||Olympus E-600|
|Olympus E-620||optical||n||2.7||230||swivel||n||1/4000s||4.0||Y||Y||Olympus E-620|
|Olympus E-520||optical||n||2.7||215||fixed||n||1/4000s||3.5||Y||Y||Olympus E-520|
|Olympus E-410||optical||n||2.5||215||fixed||n||1/4000s||3.0||Y||n||Olympus E-410|
|Olympus E-400||optical||n||2.5||215||fixed||n||1/4000s||3.0||Y||n||Olympus E-400|
|Panasonic L10||optical||n||2.5||207||swivel||n||1/4000s||3.0||Y||n||Panasonic L10|
|Sony A9 II||3686||n||3.0||1440||tilting||Y||1/8000s||10.0||n||Y||Sony A9 II|
|Sony A7 III||2359||n||3.0||922||tilting||Y||1/8000s||10.0||n||Y||Sony A7 III|
|Sony A7R III||3686||n||3.0||1440||tilting||Y||1/8000s||10.0||n||Y||Sony A7R III|
|Sony A7R II||2400||n||3.0||1229||tilting||n||1/8000s||5.0||n||Y||Sony A7R II|
|Sony A7S II||2400||n||3.0||1229||tilting||n||1/8000s||5.0||n||Y||Sony A7S II|
One difference between the cameras concerns the presence of an on-board flash. The E-420 has one, while the A7R IV does not. While the built-in flash of the E-420 is not very powerful, it can at times be useful as a fill-in light.
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 A7R IV 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 Sony A7R IV 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.
The E-420 writes its imaging data to Compact Flash or xD Picture cards, while the A7R IV uses SDXC cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails.
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-420 and Sony Alpha A7R IV and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Olympus E-420||Y||none||none||-||-||none||2.0||-||-||-||Olympus E-420|
|Sony A7R IV||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y||Sony A7R IV|
|Nikon D3000||Y||none||none||-||-||none||2.0||-||-||-||Nikon D3000|
|Nikon D60||Y||none||none||-||-||none||2.0||-||-||-||Nikon D60|
|Nikon D40X||Y||none||none||-||-||none||2.0||-||-||-||Nikon D40X|
|Olympus E-450||Y||none||none||-||-||none||2.0||-||-||-||Olympus E-450|
|Olympus E-600||Y||none||none||-||-||none||2.0||-||-||-||Olympus E-600|
|Olympus E-620||Y||none||none||-||-||none||2.0||-||-||-||Olympus E-620|
|Olympus E-520||Y||none||none||-||-||none||2.0||-||-||-||Olympus E-520|
|Olympus E-410||Y||none||none||-||-||none||2.0||-||-||-||Olympus E-410|
|Olympus E-400||Y||none||none||-||-||none||2.0||-||-||-||Olympus E-400|
|Panasonic L10||Y||none||none||-||-||none||2.0||-||-||-||Panasonic L10|
|Sony A9 II||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y||Sony A9 II|
|Sony A7 III||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y||Sony A7 III|
|Sony A7R III||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y||Sony A7R III|
|Sony A7R II||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7R II|
|Sony A7S II||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7S II|
It is notable that the A7R IV offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the E-420 does not offer wifi capability.
Studio photographers will appreciate that the Sony A7R IV (unlike the E-420) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
The A7R IV is a recent model that features in the current product line-up of Sony. In contrast, the E-420 has been discontinued (but it can be found pre-owned on eBay). There has not been a direct replacement model for the E-420 from Olympus. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Olympus and Sony websites.
So what conclusions can be drawn? Is there a clear favorite between the Olympus E-420 and the Sony A7R IV? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.
Reasons to prefer the Olympus E-420:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Less heavy: Is lighter (by 225g or 34 percent) and hence easier to carry around.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More affordable: Was introduced into a lower priced category (83 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in March 2008).
Arguments in favor of the Sony Alpha A7R IV:
- More detail: Has more megapixels (60.2 vs 10MP), which boosts linear resolution by 150%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- High quality composites: Can combine several shots after pixel-shifting its sensor.
- Better image quality: Is equipped with a larger and more technologically advanced 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.
- Broader imaging potential: Can capture not only stills but also 4K/30p video.
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- 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 95%).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.46x).
- 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 (1440k vs 215k dots).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (10 vs 3.5 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: Gets more shots (670 versus 500) out of a single battery charge.
- Easier travel charging: Can be conveniently charged via its USB port.
- 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.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- 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 device pairing: Supports NFC for fast wireless image transfer over short distances.
- 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.
- More modern: Reflects 11 years and 4 months of technical progress since the E-420 launch.
If the count of relative strengths (bullet points above) is taken as a measure, the A7R IV is the clear winner of the contest (30 : 6 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 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-420 and the Sony A7R IV 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 incomplete and does no justice, for example, to the way the E-420 or the A7R IV perform in practice. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.
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 (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.
The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. 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 your choice using the following search menu. 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 30D vs Olympus E-420
- Fujifilm X-M1 vs Sony A7R IV
- Nikon D600 vs Sony A7R IV
- Nikon D7200 vs Sony A7R IV
- Olympus E-3 vs Olympus E-420
- Olympus E-420 vs Olympus E-600
- Olympus E-420 vs Panasonic LX100 II
- Olympus E-420 vs Sony A6300
- Olympus E-420 vs Sony HX80
- Olympus E-PM2 vs Sony A7R IV
- Panasonic FZ100 vs Sony A7R IV
- Sony A7R IV vs Sony HX350
Specifications: Olympus E-420 vs Sony A7R IV
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-420||Sony A7R IV|
|Camera Type||Digital single lens reflex||Mirrorless system camera|
|Camera Lens||Four Thirds lenses||Sony E mount lenses|
|Launch Date||March 2008||July 2019|
|Launch Price||USD 599||USD 3499|
|Sensor Specs||Olympus E-420||Sony A7R IV|
|Sensor Format||Four Thirds Sensor||Full Frame Sensor|
|Sensor Size||17.3 x 13.0 mm||35.7 x 23.8 mm|
|Sensor Area||224.9 mm2||849.66 mm2|
|Sensor Diagonal||21.6 mm||42.9 mm|
|Sensor Resolution||10 Megapixels||60.2 Megapixels|
|Image Resolution||3648 x 2736 pixels||9504 x 6336 pixels|
|Pixel Pitch||4.74 μm||3.76 μm|
|Pixel Density||4.44 MP/cm2||7.09 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||no Video||4K/30p Video|
|ISO Setting||100-1600 ISO||100-32000 ISO|
|ISO Boost||no Enhancement||50-102400 ISO|
|Image Processor||TruePic III||BIONZ X|
|DXO Sensor Quality (score)||56||..|
|DXO Color Depth (bits)||21.5||..|
|DXO Dynamic Range (EV)||10.4||..|
|DXO Low Light (ISO)||527||..|
|Screen Specs||Olympus E-420||Sony A7R IV|
|Viewfinder Type||Optical viewfinder||Electronic viewfinder|
|Viewfinder Field of View||95%||100%|
|Viewfinder Resolution||5760k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||2.7 inch||3.0 inch|
|LCD Resolution||215k dots||1440k dots|
|LCD Attachment||Fixed screen||Tilting screen|
|Touch Input||no Touchscreen||Touchscreen|
|Shooting Specs||Olympus E-420||Sony A7R IV|
|Focus System||Phase-detect AF||On-Sensor Phase-detect|
|Manual Focusing Aid||No Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000/s||1/8000/s|
|Continuous Shooting||3.5 shutter flaps/s||10 shutter flaps/s|
|Electronic Shutter||no E-Shutter||YES|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||Build-in Flash||no On-Board Flash|
|Storage Medium||CF or XD cards||SDXC cards|
|Second Storage Option||Dual card slots||Dual card slots|
|Connectivity Specs||Olympus E-420||Sony A7R IV|
|Studio Flash||no PC Sync||PC Sync socket|
|USB Connector||USB 2.0||USB 3.1|
|HDMI Port||no HDMI||micro HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Headphone Socket||no Headphone port||Headphone port|
|Wifi Support||no Wifi||Wifi built-in|
|Near-Field Communication||no NFC||NFC built-in|
|Bluetooth Support||no Bluetooth||Bluetooth built-in|
|Body Specs||Olympus E-420||Sony A7R IV|
|Environmental Sealing||Not weather sealed||Weathersealed body|
|Battery Life (CIPA)||500 shots per charge||670 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
130 x 91 x 53 mm
(5.1 x 3.6 x 2.1 in)
129 x 96 x 78 mm
(5.1 x 3.8 x 3.1 in)
|Camera Weight||440 g (15.5 oz)||665 g (23.5 oz)|
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