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Olympus E-M1 III vs Sigma fp L

The Olympus OM-D E-M1 Mark III and the Sigma fp L are two digital cameras that were officially introduced, respectively, in February 2020 and March 2021. Both the E-M1 III and the fp L are mirrorless interchangeable lens cameras that are based on a Four Thirds (E-M1 III) and a full frame (fp L) sensor. The Olympus has a resolution of 20.2 megapixels, whereas the Sigma provides 60.2 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Olympus E-M1 III
versus
Sigma fp L
Olympus E-M1 III   Sigma fp L
Mirrorless system camera Mirrorless system camera
Micro Four Thirds lenses Leica L mount lenses
20.2 MP – Four Thirds sensor 60.2 MP – Full Frame sensor
4K/30p Video 4K/30p Video
ISO 200-25,600 ISO 100-25,600 (6 - 102,400)
Electronic viewfinder (2360k dots) Viewfinder optional
3.0" LCD – 1037k dots 3.2" LCD – 2100k dots
Swivel touchscreen Fixed touchscreen
18 shutter flaps per second 10 shutter flaps per second
In-body stabilizationLens stabilization only
Weathersealed bodyWeathersealed body
420 shots per battery charge240 shots per battery charge
134 x 91 x 69 mm, 580 g 113 x 70 x 45 mm, 427 g
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Check E-M1 III offers at
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Check fp L price at
amazon.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus OM-D E-M1 Mark III and the Sigma fp L? 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.

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Body comparison

An illustration of the physical size and weight of the Olympus E-M1 III and the Sigma fp L 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 size dimensions are rounded to the nearest millimeter.

Size Olympus E-M1 III vs Sigma fp L
Compare E-M1 III versus fp L top
Comparison E-M1 III or fp L rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sigma fp L is considerably smaller (35 percent) than the Olympus E-M1 III. Moreover, the fp L is markedly lighter (26 percent) than the E-M1 III. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

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. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the E-M1 III gets 420 shots out of its Olympus BLH-1 battery, while the fp L can take 240 images on a single charge of its Sigma BP-51 power pack. The battery packs of both cameras can be charged via USB, 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, you can use the CAM-parator app to select your camera combination among a large number of options.

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Body Specifications
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Olympus E-M1 III 134 mm 91 mm 69 mm 580 g 420 Y Feb 2020 1,799ebay.com
2.
 
Sigma fp L 113 mm 70 mm 45 mm 427 g 240 Y Mar 2021 2,499 amazon.com
3.
 
Leica M11 139 mm 80 mm 39 mm 640 g 700 Y Jan 2022 8,995 amazon.com
4.
 
Nikon D780 144 mm 116 mm 76 mm 840 g 2260 Y Jan 2020 2,299 amazon.com
5.
 
Olympus E-M5 III 125 mm 85 mm 50 mm 414 g 310 Y Oct 2019 1,199ebay.com
6.
 
Olympus E-M1X 144 mm 147 mm 75 mm 997 g 870 Y Jan 2019 2,999ebay.com
7.
 
Olympus E-M1 II 134 mm 91 mm 67 mm 574 g 440 Y Sep 2016 1,999ebay.com
8.
 
Olympus E-M1 130 mm 94 mm 63 mm 497 g 350 Y Sep 2013 1,399ebay.com
9.
 
OM System OM-1 135 mm 92 mm 73 mm 599 g 520 Y Feb 2022 2,199ebay.com
10.
 
Panasonic GH5 II 139 mm 98 mm 87 mm 727 g 400 Y May 2021 1,699 amazon.com
11.
 
Panasonic G95 130 mm 94 mm 77 mm 536 g 290 Y Apr 2019 999ebay.com
12.
 
Panasonic G9 137 mm 97 mm 92 mm 658 g 400 Y Nov 2017 1,699ebay.com
13.
 
Panasonic GH5 139 mm 98 mm 87 mm 725 g 410 Y Jan 2017 1,999ebay.com
14.
 
Panasonic GX8 133 mm 78 mm 63 mm 487 g 330 Y Jul 2015 1,199ebay.com
15.
 
Sigma fp 113 mm 70 mm 45 mm 422 g 280 Y Jul 2019 1,899 amazon.com
16.
 
Sony A7S 127 mm 94 mm 48 mm 489 g 380 Y Apr 2014 2,499ebay.com
17.
 
Sony A7R 127 mm 94 mm 48 mm 465 g 340 Y Oct 2013 2,299ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The E-M1 III was launched at a markedly lower price (by 28 percent) than the fp L, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down.

Sensor comparison

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 Olympus E-M1 III features a Four Thirds sensor and the Sigma fp L a full frame sensor. The sensor area in the fp L is 284 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-M1 III has a native 4:3 aspect ratio, while the one in the fp L offers a 3:2 aspect.

Olympus E-M1 III and Sigma fp L sensor measures

With 60.2MP, the fp L offers a higher resolution than the E-M1 III (20.2MP), but the fp L nevertheless has larger individual pixels (pixel pitch of 3.79μm versus 3.34μm for the E-M1 III) due to its larger sensor. Moreover, the fp L is a somewhat more recent model (by 1 year and 1 month) than the E-M1 III, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the E-M1 III has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sigma fp L implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the fp L for good quality output (200 dots per inch) amounts to 47.6 x 31.6 inches or 120.9 x 80.4 cm, for very good quality (250 dpi) 38.1 x 25.3 inches or 96.7 x 64.3 cm, and for excellent quality (300 dpi) 31.7 x 21.1 inches or 80.6 x 53.6 cm. The corresponding values for the Olympus E-M1 III are 25.9 x 19.4 inches or 65.8 x 49.4 cm for good quality, 20.7 x 15.6 inches or 52.7 x 39.5 cm for very good quality, and 17.3 x 13 inches or 43.9 x 32.9 cm for excellent quality prints.

The E-M1 III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Unlike the fp L, the E-M1 III has the capacity to capture high quality composite images (80MP) 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 OM-D E-M1 Mark III has a native sensitivity range from ISO 200 to ISO 25600, which can be extended to ISO 64-25600. The corresponding ISO settings for the Sigma fp L are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 6-102400.

In terms of underlying technology, the E-M1 III is build around a CMOS sensor, while the fp L uses a BSI-CMOS imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

E-M1 III versus fp L MP

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"). The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

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Sensor Characteristics
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Olympus E-M1 III Four Thirds 20.2 5184 38884K/30p23.313.1135676
2.
 
Sigma fp L Full Frame 60.2 9520 63284K/30p25.314.4300196
3.
 
Leica M11 Full Frame 60.3 9528 6328none26.314.83376100
4.
 
Nikon D780 Full Frame 24.3 6048 40244K/30p25.314.3287795
5.
 
Olympus E-M5 III Four Thirds 20.2 5184 38884K/30p23.313.1132476
6.
 
Olympus E-M1X Four Thirds 20.2 5184 38884K/30p23.213.0125475
7.
 
Olympus E-M1 II Four Thirds 20.2 5184 38884K/30p23.712.8131280
8.
 
Olympus E-M1 Four Thirds 15.9 4608 34561080/30p23.012.775773
9.
 
OM System OM-1 Four Thirds 20.2 5184 38884K/60p23.413.4155377
10.
 
Panasonic GH5 II Four Thirds 20.2 5184 38884K/60p23.713.1113679
11.
 
Panasonic G95 Four Thirds 20.2 5184 38884K/30p23.213.0127375
12.
 
Panasonic G9 Four Thirds 20.2 5184 38884K/60p23.112.8113874
13.
 
Panasonic GH5 Four Thirds 20.2 5184 38884K/60p23.913.080777
14.
 
Panasonic GX8 Four Thirds 20.2 5184 38884K/30p23.512.680675
15.
 
Sigma fp Full Frame 24.0 6000 40004K/30p25.214.2282994
16.
 
Sony A7S Full Frame 12.0 4240 28321080/60p23.913.2370287
17.
 
Sony A7R Full Frame 36.2 7360 49121080/60p25.614.1274695
Note: DXO values in italics represent estimates based on sensor size and age.
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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, and both provide the same movie specifications (4K/30p).

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the E-M1 III has an electronic viewfinder (2360k dots), which can be very helpful when shooting in bright sunlight. In contrast, the fp L relies on live view and the rear LCD for framing. That said, the fp L can be equipped with an optional viewfinder – the EVF-11. The table below summarizes some of the other core capabilities of the Olympus E-M1 III and Sigma fp L in connection with corresponding information for a sample of similar cameras.

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Core Features
# image Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Olympus E-M1 III2360 n3.0 / 1037 swivel Y 1/8000s 18.0/s n Y
2.
 
Sigma fp Loptional n3.2 / 2100 fixed Y 1/8000s 10.0/s n n
3.
 
Leica M11optical n3.0 / 2333 fixed Y 1/4000s 4.5/s n n
4.
 
Nikon D780optical Y3.2 / 2359 tilting Y 1/8000s 12.0/s n n
5.
 
Olympus E-M5 III2360 n3.0 / 1040 swivel Y 1/8000s 10.0/s n Y
6.
 
Olympus E-M1X2360 n3.0 / 1037 swivel Y 1/8000s 18.0/s n Y
7.
 
Olympus E-M1 II2360 n3.0 / 1037 swivel Y 1/8000s 18.0/s n Y
8.
 
Olympus E-M12360 n3.0 / 1037 tilting Y 1/8000s 10.0/s n Y
9.
 
OM System OM-15760 n3.0 / 1640 swivel Y 1/8000s 10.0/s n Y
10.
 
Panasonic GH5 II3680 n3.0 / 1840 swivel Y 1/8000s 12.0/s n Y
11.
 
Panasonic G952360 n3.0 / 1240 swivel Y 1/4000s 9.0/s Y Y
12.
 
Panasonic G93680 Y3.0 / 1040 swivel Y 1/8000s 20.0/s n Y
13.
 
Panasonic GH53680 n3.2 / 1620 swivel Y 1/8000s 12.0/s n Y
14.
 
Panasonic GX82360 n3.0 / 1040 swivel Y 1/8000s 10.0/s n Y
15.
 
Sigma fpoptional n3.2 / 2100 fixed Y 1/8000s 12.0/s n n
16.
 
Sony A7S2400 n3.0 / 921 tilting n 1/8000s 5.0/s n n
17.
 
Sony A7R2400 n3.0 / 1230 tilting n 1/8000s 4.0/s n n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One feature that differentiates the E-M1 III and the fp L is in-body image stabilization (IBIS). The E-M1 III reduces the risk of handshake-induced blur with all attached lenses, while the fp L offers no blur reduction with lenses that themselves do not provide optical image stabilization.

The E-M1 III 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 fp L 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, both cameras under consideration feature an 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 Olympus E-M1 III and the Sigma fp L both have 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 E-M1 III and the fp L write their files to SDXC cards. The E-M1 III features dual card slots, which can be very useful in case a memory card fails. In contrast, the fp L only has one slot. Both cameras support UHS-II cards, which provide for Ultra High Speed data transfer of up to 312 MB/s (the second slot of the E-M1 III supports only UHS-I, though).

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Connectivity comparison

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 OM-D E-M1 Mark III and Sigma fp L and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Olympus E-M1 IIIYstereo / monoYYmicro3.1Y-Y
2.
 
Sigma fp LYstereo / monoYYmicro3.2Y--
3.
 
Leica M11Y- / ----3.2Y-Y
4.
 
Nikon D780Ystereo / monoYYmini3.1Y-Y
5.
 
Olympus E-M5 IIIYstereo / monoY-micro2.0Y-Y
6.
 
Olympus E-M1XYstereo / monoYYmicro3.0Y-Y
7.
 
Olympus E-M1 IIYstereo / monoYYmicro3.0Y--
8.
 
Olympus E-M1Ystereo / monoY-micro2.0Y--
9.
 
OM System OM-1Ystereo / monoYYmicro3.0Y-Y
10.
 
Panasonic GH5 IIYstereo / monoYYfull3.2Y-Y
11.
 
Panasonic G95Ystereo / monoYYmicro2.0Y-Y
12.
 
Panasonic G9Ystereo / monoYYfull3.0Y-Y
13.
 
Panasonic GH5Ystereo / monoYYfull3.1Y-Y
14.
 
Panasonic GX8Ystereo / monoY-micro2.0YY-
15.
 
Sigma fpYstereo / monoY-micro3.1---
16.
 
Sony A7SYstereo / monoYYmicro2.0YY-
17.
 
Sony A7RYstereo / monoYYmicro2.0YY-
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Studio photographers will appreciate that the Olympus E-M1 III (unlike the fp L) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The fp L is a recent model that features in the current product line-up of Sigma. In contrast, the E-M1 III has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the E-M1 III was succeeded by the OM System OM-1. Further information on the features and operation of the E-M1 III and fp L can be found, respectively, in the Olympus E-M1 III Manual (free pdf) or the online Sigma fp L Manual.

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Review summary

So what conclusions can be drawn? Which of the two cameras – the Olympus E-M1 III or the Sigma fp L – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.

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Reasons to prefer the Olympus OM-D E-M1 Mark III:

  • 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 live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • Easier framing: Has an electronic viewfinder for image composition and settings control.
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (18 vs 10 flaps/sec) to capture the decisive moment.
  • Longer lasting: Can take more shots (420 versus 240) on a single battery charge.
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • 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.
  • More affordable: Was introduced into a lower priced category (28 percent cheaper at launch).
  • More heavily discounted: Has been on the market for longer (launched in February 2020).

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Advantages of the Sigma fp L:

  • More detail: Has more megapixels (60.2 vs 20.2MP), which boosts linear resolution by 76%.
  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • 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.
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (2100k vs 1037k dots).
  • More compact: Is smaller (113x70mm vs 134x91mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 153g or 26 percent) and is thus easier to take along.
  • Faster data transfer: Supports a more advanced USB protocol (3.2 vs 3.1).
  • More modern: Was introduced somewhat (1 year and 1 month) more recently.

If the count of relative strengths (bullet points above) is taken as a measure, the E-M1 III emerges as the winner of the contest (14 : 12 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. A professional wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

E-M1 III 14:12 fp L

How about other alternatives? Do the specifications of the Olympus E-M1 III and the Sigma fp L 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 comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the E-M1 III or the fp L. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

Expert reviews

This is where reviews by experts come in. 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.

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Expert Camera Reviews
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Olympus E-M1 III5/5..5/583/1004.5/54/5 Feb 2020 1,799ebay.com
2.
 
Sigma fp L4/5..4/5..4/54/5 Mar 2021 2,499 amazon.com
3.
 
Leica M114.5/5..4.5/5..4.5/54.5/5 Jan 2022 8,995 amazon.com
4.
 
Nikon D7805/5..5/587/1004.5/54.5/5 Jan 2020 2,299 amazon.com
5.
 
Olympus E-M5 III5/5+5/582/1004.5/54.5/5 Oct 2019 1,199ebay.com
6.
 
Olympus E-M1X4.5/5o5/585/1004.5/5.. Jan 2019 2,999ebay.com
7.
 
Olympus E-M1 II5/5+ +5/585/1004.5/54.5/5 Sep 2016 1,999ebay.com
8.
 
Olympus E-M15/5+ +..84/1004.5/54.5/5 Sep 2013 1,399ebay.com
9.
 
OM System OM-15/5....87/1005/54.5/5 Feb 2022 2,199ebay.com
10.
 
Panasonic GH5 II4.5/5..4.5/585/1004.5/55/5 May 2021 1,699 amazon.com
11.
 
Panasonic G954.5/5+4.5/583/1004.5/54.5/5 Apr 2019 999ebay.com
12.
 
Panasonic G9..+ +5/585/1005/55/5 Nov 2017 1,699ebay.com
13.
 
Panasonic GH54.5/5+ +..85/1004.5/55/5 Jan 2017 1,999ebay.com
14.
 
Panasonic GX85/5+..82/1004.5/54.5/5 Jul 2015 1,199ebay.com
15.
 
Sigma fp4/5..4/5..4/54.5/5 Jul 2019 1,899 amazon.com
16.
 
Sony A7S4/5....86/1004.5/55/5 Apr 2014 2,499ebay.com
17.
 
Sony A7R5/5+ +..82/1004.5/55/5 Oct 2013 2,299ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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The above review scores should be interpreted 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 comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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Check fp L price at
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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. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Olympus E-M1 III vs Sigma fp L

    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 Specifications
    Camera Model Olympus E-M1 III Sigma fp L
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Micro Four Thirds lenses Leica L mount lenses
    Launch Date February 2020 March 2021
    Launch Price USD 1,799 USD 2,499
    Sensor Specs Olympus E-M1 III Sigma fp L
    Sensor Technology CMOS BSI-CMOS
    Sensor Format Four Thirds Sensor Full Frame Sensor
    Sensor Size 17.3 x 13.0 mm 36.0 x 24.0 mm
    Sensor Area 224.9 mm2 864 mm2
    Sensor Diagonal 21.6 mm 43.3 mm
    Crop Factor 2.0x 1.0x
    Sensor Resolution 20.2 Megapixels 60.2 Megapixels
    Image Resolution 5184 x 3888 pixels 9520 x 6328 pixels
    Pixel Pitch 3.34 μm 3.79 μm
    Pixel Density 8.96 MP/cm2 6.97 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 4K/30p Video 4K/30p Video
    ISO Setting 200 - 25,600 ISO 100 - 25,600 ISO
    ISO Boost 64 - 25,600 ISO 6 - 102,400 ISO
    Screen Specs Olympus E-M1 III Sigma fp L
    Viewfinder Type Electronic viewfinder Viewfinder optional
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.74x
    Viewfinder Resolution 2360k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.2inch
    LCD Resolution 1037k dots 2100k dots
    LCD Attachment Swivel screen Fixed screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Olympus E-M1 III Sigma fp L
    Focus System On-Sensor Phase-detect Contrast-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/8000s
    Continuous Shooting 18 shutter flaps/s 10 shutter flaps/s
    Electronic Shutterup to 1/32000sup to 1/8000s
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationIn-body stabilizationLens stabilization only
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium SDXC cards SDXC cards
    Single or Dual Card Slots Dual card slots Single card slot
    UHS card support Single UHS-II UHS-II
    Connectivity Specs Olympus E-M1 III Sigma fp L
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 3.1 USB 3.2
    HDMI Port micro HDMI micro HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Olympus E-M1 III Sigma fp L
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Olympus BLH-1 Sigma BP-51
    Battery Life (CIPA)420 shots per charge240 shots per charge
    In-Camera Charging USB charging USB charging
    Body Dimensions 134 x 91 x 69 mm
    (5.3 x 3.6 x 2.7 in)
    113 x 70 x 45 mm
    (4.4 x 2.8 x 1.8 in)
    Camera Weight 580 g (20.5 oz) 427 g (15.1 oz)
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