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Casio EX-Z270 vs Sigma SD1

Portability
96
Imaging
32
Features
22
Overall
28
Casio Exilim EX-Z270 front
 
Sigma SD1 front
Portability
77
Imaging
54
Features
43
Overall
49

Casio EX-Z270 vs Sigma SD1 Key Specs

Casio EX-Z270
(Full Review)
  • 10MP - 1/2.5" Sensor
  • 2.7" Fixed Display
  • ISO 100 - 1600
  • Sensor-shift Image Stabilization
  • 1280 x 720 video
  • 28-112mm (F2.6-7.8) lens
  • 111g - 97 x 55 x 22mm
  • Introduced January 2009
Sigma SD1
(Full Review)
  • 15MP - APS-C Sensor
  • 3" Fixed Screen
  • ISO 0 - 0
  • No Video
  • Sigma SA Mount
  • n/ag - 146 x 113 x 80mm
  • Introduced September 2010
  • Successor is Sigma SD1 Merrill
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Casio EX-Z270 vs Sigma SD1 Overview

Following is a detailed review of the Casio EX-Z270 versus Sigma SD1, one is a Ultracompact and the latter is a Advanced DSLR by competitors Casio and Sigma. There is a significant difference between the image resolutions of the EX-Z270 (10MP) and SD1 (15MP) and the EX-Z270 (1/2.5") and SD1 (APS-C) use different sensor measurements.

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The EX-Z270 was announced 20 months earlier than the SD1 which makes the cameras a generation away from each other. Both of these cameras offer different body type with the Casio EX-Z270 being a Ultracompact camera and the Sigma SD1 being a Mid-size SLR camera.

Before diving in to a in depth comparison, below is a concise overview of how the EX-Z270 grades vs the SD1 when considering portability, imaging, features and an overall score.

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Reasons to pick Casio EX-Z270 over the Sigma SD1

 EX-Z270 SD1 

Reasons to pick Sigma SD1 over the Casio EX-Z270

 SD1 EX-Z270 
IntroducedSeptember 2010January 2009More modern by 20 months
Focus manually Dial precise focus
Screen sizing3"2.7"Bigger screen (+0.3")
Screen resolution460k115kCrisper screen (+345k dot)

Common features in the Casio EX-Z270 and Sigma SD1

 EX-Z270 SD1 
Screen typeFixed Fixed Fixed screen
Selfie screen Neither includes selfie screen
Touch screen Neither includes Touch screen

Casio EX-Z270 vs Sigma SD1 Physical Comparison

For anybody who is planning to carry around your camera, you'll have to think about its weight and size. The Casio EX-Z270 features physical measurements of 97mm x 55mm x 22mm (3.8" x 2.2" x 0.9") with a weight of 111 grams (0.24 lbs) while the Sigma SD1 has specifications of 146mm x 113mm x 80mm (5.7" x 4.4" x 3.1") accompanied by a weight of n/a grams (0.00 lbs).

See the Casio EX-Z270 versus Sigma SD1 in the all new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Bear in mind, the weight of an Interchangeable Lens Camera will differ depending on the lens you use at that moment. The following is the front view dimension comparison of the EX-Z270 versus the SD1.

Casio EX-Z270 vs Sigma SD1 size comparison

Factoring in size and weight, the portability grade of the EX-Z270 and SD1 is 96 and 77 respectively.

Casio EX-Z270 vs Sigma SD1 top view buttons comparison

Casio EX-Z270 vs Sigma SD1 Sensor Comparison

In many cases, its difficult to imagine the contrast between sensor sizes only by looking at technical specs. The image below should provide you a better sense of the sensor measurements in the EX-Z270 and SD1.

As you have seen, both the cameras offer different resolutions and different sensor sizes. The EX-Z270 using its tinier sensor is going to make getting shallow DOF harder and the Sigma SD1 will give more detail with its extra 5 Megapixels. Higher resolution can also help you crop pictures a little more aggressively. The more aged EX-Z270 is going to be disadvantaged with regard to sensor tech.

Casio EX-Z270 vs Sigma SD1 sensor size comparison

Casio EX-Z270 vs Sigma SD1 Screen and ViewFinder

Casio EX-Z270 vs Sigma SD1 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Casio EX-Z270 as a Portrait photography camera
Sigma SD1 as a Portrait photography camera
19
focusing manually not possible
manual mode not possible
can't use external flash
MP count low (10MP)
very small sensor (1/2.5")
does not have RAW format
64
focusing manually
good megapixels (15 megapixels)
nice sensor size (APS-C)
exports RAW formats
doesn't have liveview
Photography Glossary

Street Comparison

Casio EX-Z270 as a Street photography camera
Sigma SD1 as a Street photography camera
56
image stabilization (Sensor-shift)
screen is fixed
very small sensor (1/2.5")
does not have RAW format
62
nice sensor size (APS-C)
exports RAW formats
environment proof
screen is fixed
does not have image stabilization
low maximum ISO (0)
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Sports Comparison

Casio EX-Z270 Sports photography information
Sigma SD1 Sports photography information
26
image stabilization (Sensor-shift)
lack of shutter priority mode
MP count low (10 megapixels)
very small sensor (1/2.5")
does not have phase detect autofocus
55
good megapixels (15 megapixels)
nice sensor size (APS-C)
environment proof
sensor has phase detect autofocus
doesn't have liveview
very slow continuous shooting (5.0 frames/s)
does not have image stabilization
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Travel Comparison

Casio EX-Z270 Travel photography features
Sigma SD1 Travel photography features
58
built-in flash
quite wide (28mm)
doesn't have Timelapse recording
MP count low (10 megapixels)
display is not selfie friendly
slow maximum aperture (f2.6)
65
environment proof
good megapixels (15MP)
built-in flash
does not have Timelapse recording
display is not selfie friendly
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Landscape Comparison

Casio EX-Z270 Landscape photography features
Sigma SD1 Landscape photography features
31
quite wide (28mm)
image stabilization (Sensor-shift)
focusing manually not possible
lens is fixed (fixed lens mount)
slow maximum aperture (f2.6)
tiny screen (2.7 inch)
manual mode not possible
MP count low (10 megapixels)
very small sensor (1/2.5")
does not have RAW format
doesn't have Timelapse recording
61
focusing manually
interchangeable lenses (Sigma SA mount)
nice screen size (3")
good megapixels (15 megapixels)
nice sensor size (APS-C)
exports RAW formats
environment proof
doesn't have liveview
does not have image stabilization
low maximum ISO (0)
does not have Timelapse recording
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Vlogging Comparison

Casio EX-Z270 Vlogging factors
Sigma SD1 Vlogging factors
29
quite wide (28mm)
image stabilization (Sensor-shift)
slow maximum aperture (f2.6)
display is not selfie friendly
low res video (1280 x 720 resolution)
doesn't have microphone socket
9
no video recording
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Casio EX-Z270 vs Sigma SD1 Specifications

Detailed spec comparison table for Casio EX-Z270 and Sigma SD1
 Casio Exilim EX-Z270Sigma SD1
General Information
Manufacturer Casio Sigma
Model type Casio Exilim EX-Z270 Sigma SD1
Category Ultracompact Advanced DSLR
Introduced 2009-01-08 2010-09-21
Body design Ultracompact Mid-size SLR
Sensor Information
Processor - Dual True II
Sensor type CCD CMOS (Foveon X3)
Sensor size 1/2.5" APS-C
Sensor measurements 5.744 x 4.308mm 24 x 16mm
Sensor surface area 24.7mm² 384.0mm²
Sensor resolution 10MP 15MP
Anti alias filter
Aspect ratio 16:9, 4:3 and 3:2 -
Highest resolution 3648 x 2736 4800 x 3200
Highest native ISO 1600 -
Minimum native ISO 100 -
RAW images
Autofocusing
Manual focusing
Touch to focus
Continuous autofocus
Single autofocus
Tracking autofocus
Selective autofocus
Autofocus center weighted
Autofocus multi area
Autofocus live view
Face detect autofocus
Contract detect autofocus
Phase detect autofocus
Total focus points - 11
Cross type focus points - 2
Lens
Lens mount type fixed lens Sigma SA
Lens zoom range 28-112mm (4.0x) -
Maximal aperture f/2.6-7.8 -
Available lenses - 76
Focal length multiplier 6.3 1.5
Screen
Range of display Fixed Type Fixed Type
Display sizing 2.7" 3"
Display resolution 115 thousand dot 460 thousand dot
Selfie friendly
Liveview
Touch function
Viewfinder Information
Viewfinder type None Optical (pentaprism)
Viewfinder coverage - 96%
Viewfinder magnification - 0.64x
Features
Lowest shutter speed 1/2 secs 15 secs
Highest shutter speed 1/2000 secs 1/2000 secs
Continuous shooting speed - 5.0 frames per sec
Shutter priority
Aperture priority
Expose Manually
Exposure compensation - Yes
Custom white balance
Image stabilization
Inbuilt flash
External flash
AEB
WB bracketing
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Supported video resolutions 1280 x 720 (24 fps), 640 x 480 (30 fps), 320 x 240 (15 fps) -
Highest video resolution 1280x720 None
Video data format Motion JPEG -
Microphone input
Headphone input
Connectivity
Wireless None None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 111g (0.24 lbs) -
Dimensions 97 x 55 x 22mm (3.8" x 2.2" x 0.9") 146 x 113 x 80mm (5.7" x 4.4" x 3.1")
DXO scores
DXO All around 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-80 -
Self timer Yes (10 seconds, 2 seconds, Triple Self-timer) Yes
Time lapse recording
Storage media SDHC Memory Card, SD Memory Card, Eye-Fi Wireless Card compatible Compact Flash (Type I, UDMA compatible)
Storage slots 1 1
Retail pricing $0 $2,339