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Casio EX-Z90 vs Nikon S640

Portability
96
Imaging
34
Features
17
Overall
27
Casio Exilim EX-Z90 front
 
Nikon Coolpix S640 front
Portability
96
Imaging
34
Features
24
Overall
30

Casio EX-Z90 vs Nikon S640 Key Specs

Casio EX-Z90
(Full Review)
  • 12MP - 1/2.3" Sensor
  • 2.7" Fixed Screen
  • ISO 64 - 1600
  • 1280 x 720 video
  • 35-105mm (F3.1-5.9) lens
  • 121g - 90 x 52 x 19mm
  • Revealed August 2009
Nikon S640
(Full Review)
  • 12MP - 1/2.3" Sensor
  • 2.7" Fixed Display
  • ISO 100 - 6400
  • Optical Image Stabilization
  • 1/8000s Maximum Shutter
  • 1280 x 720 video
  • 28-140mm (F2.7-6.6) lens
  • 130g - 91 x 55 x 21mm
  • Released August 2009
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Casio EX-Z90 vs Nikon S640 Overview

In this article, we are reviewing the Casio EX-Z90 vs Nikon S640, both Small Sensor Compact cameras by manufacturers Casio and Nikon. The sensor resolution of the EX-Z90 (12MP) and the S640 (12MP) is fairly close and they come with the same exact sensor size (1/2.3").

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The EX-Z90 was announced within a month of the S640 so they are both of a similar age. Each of the cameras offer the identical body type (Compact).

Before getting straight into a step-by-step comparison, below is a concise overview of how the EX-Z90 scores against the S640 with regard to portability, imaging, features and an overall grade.

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Reasons to pick Casio EX-Z90 over the Nikon S640

 EX-Z90 S640 
Focus manually Very precise focus

Reasons to pick Nikon S640 over the Casio EX-Z90

 S640 EX-Z90 

Common features in the Casio EX-Z90 and Nikon S640

 EX-Z90 S640 
ReleasedAugust 2009August 2009Same age
Display typeFixed Fixed Fixed display
Display sizing2.7"2.7"Equivalent display size
Display resolution230k230kThe same display resolution
Selfie screen Missing selfie screen
Touch friendly display Neither offers Touch friendly display

Casio EX-Z90 vs Nikon S640 Physical Comparison

For anyone who is looking to lug around your camera, you need to think about its weight and dimensions. The Casio EX-Z90 offers outer measurements of 90mm x 52mm x 19mm (3.5" x 2.0" x 0.7") and a weight of 121 grams (0.27 lbs) and the Nikon S640 has dimensions of 91mm x 55mm x 21mm (3.6" x 2.2" x 0.8") with a weight of 130 grams (0.29 lbs).

Examine the Casio EX-Z90 vs Nikon S640 in our newest Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Always remember, the weight of an ILC will change depending on the lens you have attached at that moment. Underneath is the front view scale comparison of the EX-Z90 and the S640.

Casio EX-Z90 vs Nikon S640 size comparison

Considering size and weight, the portability score of the EX-Z90 and S640 is 96 and 96 respectively.

Casio EX-Z90 vs Nikon S640 top view buttons comparison

Casio EX-Z90 vs Nikon S640 Sensor Comparison

Oftentimes, it is difficult to visualise the contrast in sensor measurements only by looking through specs. The photograph here might offer you a greater sense of the sensor sizing in the EX-Z90 and S640.

As you can plainly see, both the cameras offer the same exact sensor sizing and the same exact megapixels so you can expect comparable quality of photos but you should consider the launch date of the cameras into account.

Casio EX-Z90 vs Nikon S640 sensor size comparison

Casio EX-Z90 vs Nikon S640 Screen and ViewFinder

Casio EX-Z90 vs Nikon S640 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Casio EX-Z90 Portrait photography details
Nikon S640 Portrait photography details
27
you can focus manually
no manual control
cannot use external flash
low resolution sensor (12MP)
tiny sensor size (1/2.3")
lack of RAW support
20
no manual focus
no manual mode
cannot use external flash
low megapixels (12MP)
very small sensor (1/2.3")
no RAW files
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Street Comparison

Casio EX-Z90 Street photography highlights
Nikon S640 Street photography highlights
55
lighter than competition in class (121 grams)
fixed screen
no image stabilization
tiny sensor size (1/2.3")
lack of RAW support
62
image stabilization (Optical)
lighter than competition (130 grams)
no moving screen
very small sensor (1/2.3")
no RAW files
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Sports Comparison

Casio EX-Z90 Sports photography information
Nikon S640 Sports photography information
17
lack of shutter priority mode
no image stabilization
low resolution sensor (12 megapixels)
tiny sensor size (1/2.3")
lack of phase detect auto focus
33
maximum shutter speed is high (1/8,000 seconds)
image stabilization (Optical)
lack of shutter priority mode
low megapixels (12 megapixels)
very small sensor (1/2.3")
no phase detect auto focus
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Travel Comparison

Casio EX-Z90 as a Travel photography camera
Nikon S640 as a Travel photography camera
56
lighter than competition in class (121 grams)
has built in flash
does not have Time Lapse mode
low resolution sensor (12MP)
does not feature selfie friendly screen
wide angle not great (35mm)
slow max aperture (f3.1)
62
lighter than competition (130g)
built-in flash
really wide (28mm)
lack of Timelapse function
low megapixels (12MP)
does not posses selfie friendly screen
somewhat slow maximum aperture (f2.7)
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Landscape Comparison

Casio EX-Z90 as a Landscape photography camera
Nikon S640 as a Landscape photography camera
27
you can focus manually
fixed lens (fixed lens mount)
wide angle not great (35mm)
slow max aperture (f3.1)
tiny screen (2.7 inch)
no manual control
no image stabilization
low resolution sensor (12 megapixels)
tiny sensor size (1/2.3")
lack of RAW support
does not have Time Lapse mode
32
really wide (28mm)
image stabilization (Optical)
no manual focus
fixed lens (fixed lens mount)
somewhat slow maximum aperture (f2.7)
small screen (2.7")
no manual mode
low megapixels (12MP)
very small sensor (1/2.3")
no RAW files
lack of Timelapse function
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Vlogging Comparison

Casio EX-Z90 Vlogging advice
Nikon S640 Vlogging advice
25
lighter than competition in class (121g)
wide angle not great (35mm)
slow max aperture (f3.1)
does not feature selfie friendly screen
no image stabilization
low quality video (1280 x 720 resolution)
does not have mic port
31
really wide (28mm)
image stabilization (Optical)
lighter than competition (130g)
somewhat slow maximum aperture (f2.7)
does not posses selfie friendly screen
video res low (1280 x 720 pixels)
lack of external microphone socket
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Casio EX-Z90 vs Nikon S640 Specifications

Detailed spec comparison table for Casio EX-Z90 and Nikon S640
 Casio Exilim EX-Z90Nikon Coolpix S640
General Information
Brand Casio Nikon
Model type Casio Exilim EX-Z90 Nikon Coolpix S640
Class Small Sensor Compact Small Sensor Compact
Revealed 2009-08-18 2009-08-04
Physical type Compact Compact
Sensor Information
Powered by Digic 4 Expeed
Sensor type CCD CCD
Sensor size 1/2.3" 1/2.3"
Sensor measurements 6.17 x 4.55mm 6.08 x 4.56mm
Sensor surface area 28.1mm² 27.7mm²
Sensor resolution 12 megapixels 12 megapixels
Anti alias filter
Aspect ratio 4:3, 3:2 and 16:9 4:3 and 16:9
Peak resolution 4000 x 3000 4000 x 3000
Highest native ISO 1600 6400
Lowest native ISO 64 100
RAW data
Autofocusing
Manual focusing
Autofocus touch
Autofocus continuous
Single autofocus
Autofocus tracking
Selective autofocus
Autofocus center weighted
Multi area autofocus
Autofocus live view
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Lens
Lens mount type fixed lens fixed lens
Lens zoom range 35-105mm (3.0x) 28-140mm (5.0x)
Maximum aperture f/3.1-5.9 f/2.7-6.6
Macro focusing range 10cm 2cm
Focal length multiplier 5.8 5.9
Screen
Screen type Fixed Type Fixed Type
Screen size 2.7 inches 2.7 inches
Resolution of screen 230 thousand dots 230 thousand dots
Selfie friendly
Liveview
Touch friendly
Viewfinder Information
Viewfinder None None
Features
Min shutter speed 4 secs 30 secs
Max shutter speed 1/2000 secs 1/8000 secs
Shutter priority
Aperture priority
Manually set exposure
Custom white balance
Image stabilization
Inbuilt flash
Flash distance 3.00 m -
Flash options Auto, On, Off, Red-eye, Soft -
External flash
AE bracketing
WB bracketing
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported video resolutions 1280 x 720 (24 fps), 640 x 480 (30 fps), 320 x 240 (15 fps) 1280 x 720 (30 fps), 640 x 480 (30 fps), 320 x 240 (30 fps)
Highest video resolution 1280x720 1280x720
Video file format Motion JPEG Motion JPEG
Microphone port
Headphone port
Connectivity
Wireless Eye-Fi Connected None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 121 grams (0.27 lb) 130 grams (0.29 lb)
Dimensions 90 x 52 x 19mm (3.5" x 2.0" x 0.7") 91 x 55 x 21mm (3.6" x 2.2" x 0.8")
DXO scores
DXO Overall rating not tested not tested
DXO Color Depth rating not tested not tested
DXO Dynamic range rating not tested not tested
DXO Low light rating not tested not tested
Other
Battery ID NP-60 EN-EL12
Self timer Yes (2 or 10 sec, Triple) Yes
Time lapse recording
Storage type SD/MMC/SDHC card, Internal SD/SDHC, Internal
Card slots 1 1
Price at release $150 $225