Support Cameralabs by shopping at our partner stores or donating via Paypal
 






Follow my RSS feed at Camera Labs RSS Feed
 
  Latest camera reviews

Canon SX700 HS
Canon SX600 HS
Olympus TOUGH TG2
Nikon AW1
Nikon D3300
Fujifilm XT1
Olympus STYLUS 1
Sony Cyber-shot RX10
Olympus OMD EM1
Panasonic Lumix GM1
Nikon D610
Sony Alpha A7
Nikon D5300
Canon PowerShot A2500
Sony Alpha A7r
Canon ELPH 130 IXUS 140
Nikon COOLPIX P520
Nikon COOLPIX L820
Canon PowerShot S120
Panasonic Lumix GX7
Canon SX510 HS
Canon PowerShot G16
Fujifilm X20
Panasonic FZ70 / FZ72
Canon EOS 70D
Sony RX100 II
Canon ELPH 330 IXUS 255
Panasonic Lumix GF6
Fujifilm XM1
Olympus EP5
Panasonic Lumix LF1
Panasonic TZ35 / ZS25
Olympus XZ2
Sony HX300
Panasonic Lumix G6
Sony HX50V
Fujifilm X100S
Canon SX280 HS
Canon EOS SL1 / 100D
Panasonic TZ40 / ZS30
Nikon D7100
Nikon COOLPIX A
Fujifilm X-E1
Canon EOS 6D
Nikon D5200
Panasonic Lumix GH3
Canon PowerShot S110
Panasonic Lumix G5
Sony NEX-6
Panasonic Lumix FZ200
Canon PowerShot SX50 HS
Nikon COOLPIX P7700
Olympus E-PL5
Canon EOS M
Panasonic TS20 / FT20
Canon PowerShot G15
Nikon D600
Nikon COOLPIX L810
Canon PowerShot D20
Sony RX100
Panasonic Lumix LX7
Canon SX500 IS
Fujifilm HS30 EXR
Sony HX200V
Panasonic FZ60 / FZ62
Canon 520HS / 500HS
Canon 110HS / 125HS
Nikon D800
Canon EOS T4i / 650D
Canon PowerShot A3400
Panasonic ZS15 / TZ25
Olympus E-M5
Nikon D3200
Fujifilm X-Pro1
Canon PowerShot A2300
Canon SX240 / SX260
Samsung NX200
Sony Alpha SLT-A77
Canon EOS 5D Mark III
Panasonic ZS20 / TZ30
Canon PowerShot G1 X
Sony NEX-7
Panasonic GX1
Olympus E-PM1
Nikon V1
Sony NEX-5N
Canon EOS T3 / 1100D
Canon EOS 600D / T3i
Nikon D7000
Canon EOS 60D
Canon EOS 550D / T2i
Canon EOS 7D

All camera reviews
 
 
   
 
  Best Buys: our top models
   
  Best Canon lens
Best Nikon lens
Best Sony lens
Best budget DSLR
Best mid-range DSLR
Best semi-pro DSLR
Best point and shoot
Best superzoom
Best camera accessories
   
 



Camera Labs Forum

Any questions, comments or a great tip to share? Join my Camera forum and let everyone know!
   
 
  DSLR Tips



 
Support me by shopping at Amazon!
Canon PowerShot A640 Gordon Laing, November 2006

Outdoor / Resolution / Noise / Noise 2 / Corner sharpness / Fringe & macro / Geometry / Vignetting

Outdoor scene - Canon A640 vs Fujifilm F30 vs Sony N2
 
CanonA640_out_main.jpg
To compare real-life performance we shot the same scene with the Canon A640, Fujifilm F30 and Sony N2 within a few moments of each other using their best quality JPEG settings and 100 ISO sensitivity. Each camera was set to Auto and multi-zone metering for this test to compare how the same scene would be evaluated.

Each lens was adjusted to deliver the same field of view, although differences in their actual zoom positions resulted in slight variations. The Fujifilm result also shows a larger area due to its lower resolution sensor.

The image above was taken with the Canon PowerShot A640 at 10mm f4 and with a sensitivity of 100 ISO; the original JPEG measured 4.89MB.

The crops are taken from the upper left, center and lower right portions of the originals and presented here at 100%.



Canon PowerShot A640
Fujifilm FinePix F30
Sony Cybershot DSC-N2
Canon PowerShot A640 crop 1     Sony Cybershot DSC-N2 - crop 1
1/640, f4, 100 ISO
1/640, f4, 100 ISO
1/800, f4.5, 100 ISO
         
Canon PowerShot A640 crop 2   FujiF30_out2_crop2.jpg   Sony Cybershot DSC-N2 - crop 2
1/640, f4, 100 ISO
 
1/640, f4, 100 ISO
 
1/800, f4.5, 100 ISO
         
Canon PowerShot A640 crop 3     Sony Cybershot DSC-N2 - crop 3
1/640, f4, 100 ISO
 
1/640, f4, 100 ISO
 
1/800, f4.5, 100 ISO

The PowerShot A640 crops above look a little soft compared to the Sony N2, although the latter is clearly applying much greater sharpening with undesirable artefacts as a consequence in certain areas, such as the buildings in the second row. Even with lower sharpening taken into account though, the Canon A640 is slightly soft in its corners, but it's nothing to be overly concerned about. It delivers very pleasing, natural-looking results out of the camera which can be boosted in software later if desired. Finally, it's interesting to also compare the detail captured by the 10 Megapixel Canon and Sony against the 6.3 Megapixel Fujifilm - it's not as great a difference as you might imagine, and the fewer pixels of the Fujifilm sensor also provides benefits at higher sensitivities.


Canon PowerShot A640 results continued....

Outdoor / Resolution / Noise / Noise 2 / Corner sharpness / Fringe & macro / Geometry / Vignetting
If you found this review useful, please support us by shopping below!
All words, images, videos and layout, copyright 2005-2014 Gordon Laing. May not be used without permission.

/ How we test / Best Cameras / Advertising / Camera reviews / Supporting Camera Labs