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Olympus TG-870 vs Sony A7c

Portability
91
Imaging
41
Features
46
Overall
43
Olympus Stylus Tough TG-870 front
 
Sony Alpha A7c front
Portability
78
Imaging
76
Features
88
Overall
80

Olympus TG-870 vs Sony A7c Key Specs

Olympus TG-870
(Full Review)
  • 16MP - 1/2.3" Sensor
  • 3" Tilting Screen
  • ISO 125 - 6400 (Raise to 12800)
  • Optical Image Stabilization
  • 1920 x 1080 video
  • 21-105mm (F3.5-5.7) lens
  • 221g - 113 x 64 x 28mm
  • Launched January 2016
  • Previous Model is Olympus TG-860
Sony A7c
(Full Review)
  • 24MP - Full frame Sensor
  • 3" Fully Articulated Display
  • ISO 100 - 51200 (Push to 204800)
  • Sensor based 5-axis Image Stabilization
  • 3840 x 2160 video
  • Sony E Mount
  • 509g - 124 x 71 x 60mm
  • Introduced September 2020
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Olympus TG-870 vs Sony A7c Overview

In this write-up, we are evaluating the Olympus TG-870 vs Sony A7c, former is a Ultracompact while the other is a Advanced Mirrorless by companies Olympus and Sony. There is a large difference between the image resolutions of the TG-870 (16MP) and A7c (24MP) and the TG-870 (1/2.3") and A7c (Full frame) possess different sensor size.

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The TG-870 was manufactured 5 years earlier than the A7c which is quite a serious difference as far as tech is concerned. Both of the cameras offer different body type with the Olympus TG-870 being a Ultracompact camera and the Sony A7c being a Rangefinder-style mirrorless camera.

Before delving through a thorough comparison, below is a quick summary of how the TG-870 scores vs the A7c when it comes to portability, imaging, features and an overall score.

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Reasons to pick Olympus TG-870 over the Sony A7c

 TG-870 A7c 

Reasons to pick Sony A7c over the Olympus TG-870

 A7c TG-870 
IntroducedSeptember 2020January 2016More modern by 57 months
Focus manually More accurate focusing
Display typeFully articulatedTiltingFully Articulating display
Display resolution922k921kCrisper display (+1k dot)
Selfie screen Easy selfies
Touch display Easily navigate

Common features in the Olympus TG-870 and Sony A7c

 TG-870 A7c 
Display sizing3"3"Equivalent display size

Olympus TG-870 vs Sony A7c Physical Comparison

For anyone who is planning to carry around your camera regularly, you need to take into account its weight and measurements. The Olympus TG-870 enjoys physical measurements of 113mm x 64mm x 28mm (4.4" x 2.5" x 1.1") along with a weight of 221 grams (0.49 lbs) whilst the Sony A7c has proportions of 124mm x 71mm x 60mm (4.9" x 2.8" x 2.4") accompanied by a weight of 509 grams (1.12 lbs).

Check the Olympus TG-870 vs Sony A7c in our newest Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Keep in mind, the weight of an ILC will vary based on the lens you are utilizing at that moment. Here is the front view over all size comparison of the TG-870 vs the A7c.

Olympus TG-870 vs Sony A7c size comparison

Considering size and weight, the portability score of the TG-870 and A7c is 91 and 78 respectively.

Olympus TG-870 vs Sony A7c top view buttons comparison

Olympus TG-870 vs Sony A7c Sensor Comparison

Oftentimes, its hard to visualize the gap between sensor sizes purely by reading through specifications. The picture here will provide you a more clear sense of the sensor measurements in the TG-870 and A7c.

To sum up, both the cameras offer different resolutions and different sensor sizes. The TG-870 due to its tinier sensor is going to make shooting bokeh tougher and the Sony A7c will resolve more detail due to its extra 8 Megapixels. Greater resolution will also make it easier to crop images a little more aggressively. The more aged TG-870 is going to be disadvantaged when it comes to sensor tech.

Olympus TG-870 vs Sony A7c sensor size comparison

Olympus TG-870 vs Sony A7c Screen and ViewFinder

Olympus TG-870 vs Sony A7c Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus TG-870 Portrait photography highlights
Sony A7c Portrait photography highlights
36
megapixel count good (16MP)
provides face detection focus
manual focus not available
manual exposure not possible
cannot use external flash
sensor size is tiny (1/2.3")
has no RAW format
78
focusing manually
MP count decent (24MP)
sensor size is large (Full frame)
offers face detect focus
supports RAW files
cannot use external flash
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Street Comparison

Olympus TG-870 Street photography info
Sony A7c Street photography info
65
screen tilts
image stabilization (Optical)
environment proof
sensor size is tiny (1/2.3")
has no RAW format
heavier than competitors (221g)
85
has image stabilization (Sensor based 5-axis)
sensor size is large (Full frame)
supports RAW files
includes focus via touch
weather proofing
great high ISO (51,200)
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Sports Comparison

Olympus TG-870 Sports photography factors
Sony A7c Sports photography factors
51
image stabilization (Optical)
megapixel count good (16MP)
provides tracking autofocus
environment proof
better than average battery life (300 shots)
lack of shutter priority mode
sensor size is tiny (1/2.3")
has no phase detect auto focus
88
silent shutter (1/8,000 seconds)
has image stabilization (Sensor based 5-axis)
MP count decent (24MP)
sensor size is large (Full frame)
offers tracking focus
weather proofing
better than average battery pack (740 shots)
has phase detect auto focus
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Travel Comparison

Olympus TG-870 Travel photography advice
Sony A7c Travel photography advice
69
better than average battery life (300 CIPA)
environment proof
megapixel count good (16 megapixels)
flash built-in
relatively wide (21mm)
heavier than competitors (221g)
does not have selfie friendly display
sluggish max aperture (f3.5)
86
better than average battery pack (740 shots)
weather proofing
has bluetooth
includes focus via touch
MP count decent (24 megapixels)
selfie friendly display
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Landscape Comparison

Olympus TG-870 Landscape photography information
Sony A7c Landscape photography information
50
relatively wide (21mm)
pretty good screen size (3 inch)
image stabilization (Optical)
megapixel count good (16MP)
environment proof
better than average battery life (300 per charge)
manual focus not available
can't change lens (fixed lens mount)
sluggish max aperture (f3.5)
manual exposure not possible
sensor size is tiny (1/2.3")
has no RAW format
88
focusing manually
change lenses (Sony E mount)
decent sized screen (3")
has image stabilization (Sensor based 5-axis)
MP count decent (24MP)
sensor size is large (Full frame)
great high ISO (51,200)
supports RAW files
weather proofing
better than average battery pack (740 shots)
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Vlogging Comparison

Olympus TG-870 Vlogging features
Sony A7c Vlogging features
32
relatively wide (21mm)
image stabilization (Optical)
provides face detection focus
video res high (1920 x 1080 pxls)
sluggish max aperture (f3.5)
does not have selfie friendly display
does not have external mic jack
heavier than competitors (221 grams)
86
selfie friendly display
has touchscreen
has image stabilization (Sensor based 5-axis)
offers face detect focus
high res video (3840 x 2160 pixels)
has microphone support
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Olympus TG-870 vs Sony A7c Specifications

Detailed spec comparison table for Olympus TG-870 and Sony A7c
 Olympus Stylus Tough TG-870Sony Alpha A7c
General Information
Brand Olympus Sony
Model Olympus Stylus Tough TG-870 Sony Alpha A7c
Category Ultracompact Advanced Mirrorless
Launched 2016-01-06 2020-09-14
Physical type Ultracompact Rangefinder-style mirrorless
Sensor Information
Processor Chip TruePic VII -
Sensor type BSI-CMOS BSI-CMOS
Sensor size 1/2.3" Full frame
Sensor measurements 6.17 x 4.55mm 35.8 x 23.8mm
Sensor surface area 28.1mm² 852.0mm²
Sensor resolution 16MP 24MP
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2 and 16:9
Highest Possible resolution 4608 x 3456 6000 x 4000
Maximum native ISO 6400 51200
Maximum enhanced ISO 12800 204800
Min native ISO 125 100
RAW photos
Min enhanced ISO - 50
Autofocusing
Focus manually
Touch focus
AF continuous
Single AF
Tracking AF
AF selectice
AF center weighted
Multi area AF
Live view AF
Face detection AF
Contract detection AF
Phase detection AF
Number of focus points - 693
Lens
Lens mount fixed lens Sony E
Lens focal range 21-105mm (5.0x) -
Maximal aperture f/3.5-5.7 -
Macro focus distance 1cm -
Total lenses - 122
Crop factor 5.8 1
Screen
Type of screen Tilting Fully articulated
Screen sizing 3 inches 3 inches
Resolution of screen 921k dots 922k dots
Selfie friendly
Liveview
Touch operation
Viewfinder Information
Viewfinder None Electronic
Viewfinder resolution - 2,360k dots
Viewfinder coverage - 100 percent
Viewfinder magnification - 0.59x
Features
Min shutter speed 4 seconds 30 seconds
Max shutter speed 1/2000 seconds 1/4000 seconds
Max silent shutter speed - 1/8000 seconds
Continuous shutter rate 7.0 frames per second 10.0 frames per second
Shutter priority
Aperture priority
Manual mode
Exposure compensation - Yes
Set WB
Image stabilization
Inbuilt flash
Flash range 4.00 m (at ISO 1600) no built-in flash
Flash modes Auto, redeye reduction, fill flash, off, LED illuminator no built-in flash
Hot shoe
AEB
WB bracketing
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Video resolutions 1920 x 1080 (60p), 1280 x 720 (60p), 640 x 480 (60p) 3840 x 2160 @ 30p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM
Maximum video resolution 1920x1080 3840x2160
Video data format MPEG-4, H.264 MPEG-4, XAVC S, H.264
Microphone support
Headphone support
Connectivity
Wireless Built-In Built-In
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 3.2 Gen 1 (5 GBit/sec)
GPS BuiltIn None
Physical
Environment sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 221g (0.49 pounds) 509g (1.12 pounds)
Dimensions 113 x 64 x 28mm (4.4" x 2.5" x 1.1") 124 x 71 x 60mm (4.9" x 2.8" x 2.4")
DXO scores
DXO Overall score not tested not tested
DXO Color Depth score not tested not tested
DXO Dynamic range score not tested not tested
DXO Low light score not tested not tested
Other
Battery life 300 pictures 740 pictures
Battery style Battery Pack Battery Pack
Battery model Li-50B NP-FZ100
Self timer Yes (2 or 10 sec, custom) Yes (2 or 10 sec; continuous (3 or 5 exposures))
Time lapse recording
Type of storage SD/SDHC/SDXC, Internal SD/SDHC/SDXC card (UHS-II supported)
Card slots 1 1
Price at release $280 $1,800