Sony T90 vs Sony A77

Sony Cyber-shot DSC-T90 front
Sony SLT-A77 front

Sony T90 vs Sony A77 Key Specs

Sony T90
(Full Review)
  • 12MP - 1/2.3" Sensor
  • 3" Fixed Screen
  • ISO 80 - 3200
  • Optical Image Stabilization
  • 1280 x 720 video
  • 35-140mm (F3.5-10.0) lens
  • 148g - 94 x 57 x 15mm
  • Introduced February 2009
Sony A77
(Full Review)
  • 24MP - APS-C Sensor
  • 3" Fully Articulated Display
  • ISO 50 - 16000 (Increase to 25600)
  • Sensor based Image Stabilization
  • 1/8000s Maximum Shutter
  • 1920 x 1080 video
  • Sony/Minolta Alpha Mount
  • 732g - 143 x 104 x 81mm
  • Announced October 2011
  • Superseded the Sony A700
  • Later Model is Sony A77 II
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Sony T90 vs Sony A77 Overview

Lets take a more detailed look at the Sony T90 versus Sony A77, former being a Ultracompact while the other is a Advanced DSLR and both of them are produced by Sony. There exists a noticeable gap among the resolutions of the T90 (12MP) and A77 (24MP) and the T90 (1/2.3") and A77 (APS-C) enjoy totally different sensor sizing.

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The T90 was unveiled 3 years prior to the A77 and that is a fairly sizable difference as far as camera technology is concerned. Each of the cameras come with different body type with the Sony T90 being a Ultracompact camera and the Sony A77 being a Mid-size SLR camera.

Before going straight into a comprehensive comparison, below is a brief summation of how the T90 grades vs the A77 with regard to portability, imaging, features and an overall rating.

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Reasons to pick Sony T90 over the Sony A77

 T90 A77 
Touch friendly display Easily navigate

Reasons to pick Sony A77 over the Sony T90

 A77 T90 
AnnouncedOctober 2011February 2009Fresher by 32 months
Display typeFully ArticulatedFixed Fully Articulating display
Display resolution921k230kClearer display (+691k dot)
Selfie screen Easy selfies

Common features in the Sony T90 and Sony A77

 T90 A77 
Manually focus Dial accurate focus
Display dimension3"3"Identical display measurement

Sony T90 vs Sony A77 Physical Comparison

For anybody who is intending to carry your camera frequently, you have to consider its weight and size. The Sony T90 comes with external dimensions of 94mm x 57mm x 15mm (3.7" x 2.2" x 0.6") with a weight of 148 grams (0.33 lbs) while the Sony A77 has specifications of 143mm x 104mm x 81mm (5.6" x 4.1" x 3.2") along with a weight of 732 grams (1.61 lbs).

Examine the Sony T90 versus Sony A77 in our completely new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Bear in mind, the weight of an ILC will change dependant on the lens you are using at the time. Following is the front view dimensions comparison of the T90 compared to the A77.

Sony T90 vs Sony A77 size comparison

Considering dimensions and weight, the portability score of the T90 and A77 is 96 and 59 respectively.

Sony T90 vs Sony A77 top view buttons comparison

Sony T90 vs Sony A77 Sensor Comparison

Quite often, it can be difficult to envision the difference in sensor sizing only by checking out a spec sheet. The photograph here might give you a greater sense of the sensor sizes in the T90 and A77.

As you can see, each of the cameras have got different megapixel count and different sensor sizing. The T90 using its smaller sensor will make achieving shallow DOF harder and the Sony A77 will show more detail having an extra 12MP. Greater resolution will also help you crop images much more aggressively. The older T90 will be disadvantaged when it comes to sensor technology.

Sony T90 vs Sony A77 sensor size comparison

Sony T90 vs Sony A77 Screen and ViewFinder

Sony T90 vs Sony A77 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Sony T90 Portrait photography factors
Sony A77 Portrait photography factors
you can focus manually
manual exposure not possible
cannot use external flash
low resolution sensor (12 megapixels)
very small sensor size (1/2.3")
no RAW format
you can focus manually
decent MP (24 megapixels)
good sensor size (APS-C)
includes face detection autofocus
saves RAW formats
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Street Comparison

Sony T90 Street photography factors
Sony A77 Street photography factors
has image stabilization (Optical)
screen is fixed
very small sensor size (1/2.3")
no RAW format
more heavy than competition in class (148 grams)
screen articulates fully
has image stabilization (Sensor based)
good sensor size (APS-C)
saves RAW formats
weather proof
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Sports Comparison

Sports photography with Sony T90
Sports photography with Sony A77
has image stabilization (Optical)
max fps low (2.0 frames/s)
lack of shutter priority mode
low resolution sensor (12 megapixels)
very small sensor size (1/2.3")
no phase detect AF
maximum shutter speed is high (1/8,000 seconds)
has image stabilization (Sensor based)
decent MP (24MP)
good sensor size (APS-C)
weather proof
supports phase detect autofocus
terrible battery (470 shots)
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Travel Comparison

Travel photography with Sony T90
Travel photography with Sony A77
built-in flash
does not have Timelapse function
more heavy than competition in class (148 grams)
low resolution sensor (12 megapixels)
doesn't have selfie friendly screen
wide angle not good (35mm)
slow maximum aperture (f3.5)
weather proof
decent MP (24MP)
flash built-in
screen is selfie friendly
doesn't have Timelapse recording
terrible battery (470 per charge)
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Landscape Comparison

Sony T90 Landscape photography highlights
Sony A77 Landscape photography highlights
you can focus manually
screen is a decent size (3 inch)
has image stabilization (Optical)
cannot change lenses (fixed lens mount)
wide angle not good (35mm)
slow maximum aperture (f3.5)
manual exposure not possible
low resolution sensor (12 megapixels)
very small sensor size (1/2.3")
no RAW format
does not have Timelapse function
you can focus manually
swap lenses (Sony/Minolta Alpha mount)
decent sized screen (3 inches)
has image stabilization (Sensor based)
decent MP (24 megapixels)
good sensor size (APS-C)
saves RAW formats
weather proof
terrible battery (470 shots)
doesn't have Timelapse recording
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Vlogging Comparison

Sony T90 Vlogging details
Sony A77 Vlogging details
built-in touchscreen
has image stabilization (Optical)
wide angle not good (35mm)
slow maximum aperture (f3.5)
doesn't have selfie friendly screen
video resolution low (1280 x 720 pxls)
does not have microphone port
more heavy than competition in class (148g)
screen is selfie friendly
has image stabilization (Sensor based)
includes face detection autofocus
good video quality (1920 x 1080 pixels)
comes with external microphone socket
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Sony T90 vs Sony A77 Specifications

Detailed spec comparison table for Sony T90 and Sony A77
 Sony Cyber-shot DSC-T90Sony SLT-A77
General Information
Manufacturer Sony Sony
Model type Sony Cyber-shot DSC-T90 Sony SLT-A77
Type Ultracompact Advanced DSLR
Introduced 2009-02-17 2011-10-25
Physical type Ultracompact Mid-size SLR
Sensor Information
Powered by - Bionz
Sensor type CCD CMOS
Sensor size 1/2.3" APS-C
Sensor measurements 6.17 x 4.55mm 23.5 x 15.6mm
Sensor surface area 28.1mm² 366.6mm²
Sensor resolution 12MP 24MP
Anti alias filter
Aspect ratio 4:3, 3:2 and 16:9 3:2 and 16:9
Maximum resolution 4000 x 3000 6000 x 4000
Maximum native ISO 3200 16000
Maximum boosted ISO - 25600
Minimum native ISO 80 50
RAW images
Focus manually
Touch to focus
Autofocus continuous
Single autofocus
Autofocus tracking
Selective autofocus
Center weighted autofocus
Multi area autofocus
Autofocus live view
Face detection focus
Contract detection focus
Phase detection focus
Total focus points 9 19
Cross type focus points - 11
Lens mount type fixed lens Sony/Minolta Alpha
Lens zoom range 35-140mm (4.0x) -
Highest aperture f/3.5-10.0 -
Number of lenses - 143
Crop factor 5.8 1.5
Screen type Fixed Type Fully Articulated
Screen size 3 inches 3 inches
Screen resolution 230k dots 921k dots
Selfie friendly
Touch friendly
Viewfinder Information
Viewfinder type None Electronic
Viewfinder resolution - 2,359k dots
Viewfinder coverage - 100 percent
Viewfinder magnification - 0.73x
Slowest shutter speed 1 secs 30 secs
Maximum shutter speed 1/1600 secs 1/8000 secs
Continuous shooting rate 2.0 frames/s 12.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation - Yes
Change white balance
Image stabilization
Inbuilt flash
Flash distance 2.90 m (Auto ISO) 12.00 m
Flash settings Auto, On, Off, Red-Eye reduction, Slow Sync Auto, On, Off, Red-Eye, Slow Sync, High Speed Sync, Rear Curtain, Fill-in, Wireless
External flash
AE bracketing
White balance bracketing
Maximum flash synchronize - 1/250 secs
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 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 1280x720 1920x1080
Video format Motion JPEG MPEG-4, AVCHD, H.264
Microphone port
Headphone port
Wireless None Eye-Fi Connected
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None BuiltIn
Environment sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 148g (0.33 pounds) 732g (1.61 pounds)
Dimensions 94 x 57 x 15mm (3.7" x 2.2" x 0.6") 143 x 104 x 81mm (5.6" x 4.1" x 3.2")
DXO scores
DXO All around rating not tested 78
DXO Color Depth rating not tested 24.0
DXO Dynamic range rating not tested 13.2
DXO Low light rating not tested 801
Battery life - 470 pictures
Battery type - Battery Pack
Battery ID - NP-FM500H
Self timer Yes (2 or 10 sec) Yes (2 or 10 sec)
Time lapse recording
Type of storage Memory Stick Duo / Pro Duo, Internal SD/SDHC/SDXC/Memory Stick Pro Duo/ Pro-HG Duo
Card slots 1 1
Launch pricing $259 $900