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Sony TX66 vs Sony A77

Portability
97
Imaging
42
Features
51
Overall
45
Sony Cyber-shot DSC-TX66 front
 
Sony SLT-A77 front
Portability
59
Imaging
63
Features
83
Overall
71

Sony TX66 vs Sony A77 Key Specs

Sony TX66
(Full Review)
  • 18MP - 1/2.3" Sensor
  • 3.3" Fixed Screen
  • ISO 80 - 12800
  • Optical Image Stabilization
  • 1920 x 1080 video
  • 26-130mm (F3.5-4.8) lens
  • 109g - 93 x 54 x 13mm
  • Introduced February 2012
Sony A77
(Full Review)
  • 24MP - APS-C Sensor
  • 3" Fully Articulated Display
  • ISO 50 - 16000 (Raise to 25600)
  • Sensor based Image Stabilization
  • 1/8000s Max Shutter
  • 1920 x 1080 video
  • Sony/Minolta Alpha Mount
  • 732g - 143 x 104 x 81mm
  • Announced October 2011
  • Previous Model is Sony A700
  • Later Model is Sony A77 II
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Sony TX66 vs Sony A77 Overview

Below, we are looking at the Sony TX66 and Sony A77, one is a Ultracompact and the other is a Advanced DSLR and they are both offered by Sony. There exists a significant gap between the resolutions of the TX66 (18MP) and A77 (24MP) and the TX66 (1/2.3") and A77 (APS-C) use different sensor sizing.

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The TX66 was manufactured 5 months after the A77 and they are of a similar generation. The two cameras come with different body type with the Sony TX66 being a Ultracompact camera and the Sony A77 being a Mid-size SLR camera.

Before delving through a comprehensive comparison, below is a short highlight of how the TX66 scores against the A77 in terms of portability, imaging, features and an overall mark.

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Reasons to pick Sony TX66 over the Sony A77

 TX66 A77 
Display dimension3.3"3"Larger display (+0.3")
Display resolution1230k921kSharper display (+309k dot)
Touch display Easily navigate

Reasons to pick Sony A77 over the Sony TX66

 A77 TX66 
Display typeFully ArticulatedFixed Fully Articulating display
Selfie screen Easy selfies

Common features in the Sony TX66 and Sony A77

 TX66 A77 
AnnouncedFebruary 2012October 2011Similar generation
Manually focus Dial accurate focusing

Sony TX66 vs Sony A77 Physical Comparison

In case you're aiming to travel with your camera often, you are going to need to take into account its weight and dimensions. The Sony TX66 enjoys exterior dimensions of 93mm x 54mm x 13mm (3.7" x 2.1" x 0.5") with a weight of 109 grams (0.24 lbs) whilst the Sony A77 has dimensions of 143mm x 104mm x 81mm (5.6" x 4.1" x 3.2") with a weight of 732 grams (1.61 lbs).

See the Sony TX66 and Sony A77 in the all new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Keep in mind, the weight of an Interchangeable Lens Camera will change depending on the lens you have chosen during that time. Here is the front view measurements comparison of the TX66 and the A77.

Sony TX66 vs Sony A77 size comparison

Taking into account dimensions and weight, the portability score of the TX66 and A77 is 97 and 59 respectively.

Sony TX66 vs Sony A77 top view buttons comparison

Sony TX66 vs Sony A77 Sensor Comparison

Sometimes, it is very difficult to visualize the contrast between sensor dimensions just by reading specifications. The pic here might offer you a far better sense of the sensor sizes in the TX66 and A77.

To sum up, both of these cameras posses different megapixels and different sensor dimensions. The TX66 because of its tinier sensor is going to make getting shallower depth of field more difficult and the Sony A77 will deliver extra detail due to its extra 6MP. Greater resolution can also make it easier to crop images somewhat more aggressively.

Sony TX66 vs Sony A77 sensor size comparison

Sony TX66 vs Sony A77 Screen and ViewFinder

Sony TX66 vs Sony A77 Screen and Viewfinder comparison
Photography Glossary

Photography Type Scores

Portrait Comparison

Sony TX66 Portrait photography advice
Sony A77 Portrait photography advice
42
has manual focus
MP count decent (18 megapixels)
has face detection focus
no manual mode
can't use external flash
sensor size is very small (1/2.3")
lack of RAW format
77
focusing manually
MP count decent (24MP)
good sensor size (APS-C)
offers face detect focus
delivers RAW files
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Street Comparison

Sony TX66 Street photography info
Sony A77 Street photography info
64
built in image stabilization (Optical)
comes with touch focus
no articulating screen
sensor size is very small (1/2.3")
lack of RAW format
74
fully articulated screen
built in image stabilization (Sensor based)
good sensor size (APS-C)
delivers RAW files
environment proofing
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Sports Comparison

Sony TX66 Sports photography info
Sony A77 Sports photography info
49
built in image stabilization (Optical)
MP count decent (18 megapixels)
has tracking autofocus
great battery pack (250 CIPA)
lack of shutter priority mode
sensor size is very small (1/2.3")
lack of phase detect auto focus
74
great max shutter speed (1/8,000s)
built in image stabilization (Sensor based)
MP count decent (24 megapixels)
good sensor size (APS-C)
environment proofing
comes with phase detect auto focus
terrible battery life (470 per charge)
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Travel Comparison

Travel photography with Sony TX66
Travel photography with Sony A77
72
great battery pack (250 shots)
comes with touch focus
MP count decent (18 megapixels)
flash built-in
rather wide (26mm)
lack of Time Lapse recording
screen is not selfie friendly
sluggish maximum aperture (f3.5)
62
environment proofing
MP count decent (24 megapixels)
flash built-in
display is selfie friendly
does not have Time Lapse recording
terrible battery life (470 per charge)
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Landscape Comparison

Landscape photography with Sony TX66
Landscape photography with Sony A77
51
has manual focus
rather wide (26mm)
pretty good screen size (3.3")
built in image stabilization (Optical)
MP count decent (18MP)
great battery pack (250 CIPA)
lens is fixed (fixed lens mount)
sluggish maximum aperture (f3.5)
no manual mode
sensor size is very small (1/2.3")
lack of RAW format
lack of Time Lapse recording
71
focusing manually
change lenses (Sony/Minolta Alpha mount)
decent sized screen (3 inches)
built in image stabilization (Sensor based)
MP count decent (24 megapixels)
good sensor size (APS-C)
delivers RAW files
environment proofing
terrible battery life (470 shots)
does not have Time Lapse recording
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Vlogging Comparison

Sony TX66 Vlogging information
Sony A77 Vlogging information
36
rather wide (26mm)
screen is touchscreen
built in image stabilization (Optical)
has face detection focus
high quality video (1920 x 1080 resolution)
sluggish maximum aperture (f3.5)
screen is not selfie friendly
lack of external mic jack
76
display is selfie friendly
built in image stabilization (Sensor based)
offers face detect focus
high quality video (1920 x 1080 pixels)
does have mic port
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Sony TX66 vs Sony A77 Specifications

Detailed spec comparison table for Sony TX66 and Sony A77
 Sony Cyber-shot DSC-TX66Sony SLT-A77
General Information
Company Sony Sony
Model Sony Cyber-shot DSC-TX66 Sony SLT-A77
Class Ultracompact Advanced DSLR
Introduced 2012-02-28 2011-10-25
Body design Ultracompact Mid-size SLR
Sensor Information
Processor Chip BIONZ Bionz
Sensor type BSI-CMOS CMOS
Sensor size 1/2.3" APS-C
Sensor dimensions 6.17 x 4.55mm 23.5 x 15.6mm
Sensor surface area 28.1mm² 366.6mm²
Sensor resolution 18 megapixels 24 megapixels
Anti aliasing filter
Aspect ratio 4:3 and 16:9 3:2 and 16:9
Highest Possible resolution 4896 x 3672 6000 x 4000
Maximum native ISO 12800 16000
Maximum enhanced ISO - 25600
Min native ISO 80 50
RAW files
Autofocusing
Focus manually
AF touch
Continuous AF
Single AF
AF tracking
AF selectice
Center weighted AF
AF multi area
Live view AF
Face detection AF
Contract detection AF
Phase detection AF
Number of focus points - 19
Cross focus points - 11
Lens
Lens mount fixed lens Sony/Minolta Alpha
Lens focal range 26-130mm (5.0x) -
Maximum aperture f/3.5-4.8 -
Macro focus distance 1cm -
Total lenses - 143
Focal length multiplier 5.8 1.5
Screen
Range of screen Fixed Type Fully Articulated
Screen size 3.3 inches 3 inches
Screen resolution 1,230 thousand dot 921 thousand dot
Selfie friendly
Liveview
Touch functionality
Screen technology XtraFine TruBlack OLED display -
Viewfinder Information
Viewfinder None Electronic
Viewfinder resolution - 2,359 thousand dot
Viewfinder coverage - 100%
Viewfinder magnification - 0.73x
Features
Minimum shutter speed 30s 30s
Fastest shutter speed 1/4000s 1/8000s
Continuous shutter speed 10.0fps 12.0fps
Shutter priority
Aperture priority
Expose Manually
Exposure compensation - Yes
Custom WB
Image stabilization
Integrated flash
Flash range 3.10 m 12.00 m
Flash settings Auto, On, Off, Slow Sync, Rear Slow Sync Auto, On, Off, Red-Eye, Slow Sync, High Speed Sync, Rear Curtain, Fill-in, Wireless
External flash
AEB
White balance bracketing
Fastest flash sync - 1/250s
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions 1920 x 1080 (60 fps), 1440 x 1080 (60, 30 fps), 1280 x 720 (30 fps), 640 x 480 (30 fps) 1920 x 1080 (60, 24 fps), 1440 x 1080 (30fps), 640 x 424 (29.97 fps)
Maximum video resolution 1920x1080 1920x1080
Video file format MPEG-4, AVCHD MPEG-4, AVCHD, H.264
Mic jack
Headphone jack
Connectivity
Wireless None Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None BuiltIn
Physical
Environmental seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 109 gr (0.24 lbs) 732 gr (1.61 lbs)
Dimensions 93 x 54 x 13mm (3.7" x 2.1" x 0.5") 143 x 104 x 81mm (5.6" x 4.1" x 3.2")
DXO scores
DXO Overall score not tested 78
DXO Color Depth score not tested 24.0
DXO Dynamic range score not tested 13.2
DXO Low light score not tested 801
Other
Battery life 250 photos 470 photos
Battery form Battery Pack Battery Pack
Battery model NP-BN NP-FM500H
Self timer Yes (2 or 10 sec, Portrait 1/2) Yes (2 or 10 sec)
Time lapse recording
Storage media Memory Stick Duo/Pro Duo/Pro-HG Duo, microSD/microSDHC SD/SDHC/SDXC/Memory Stick Pro Duo/ Pro-HG Duo
Storage slots Single Single
Launch cost $350 $900