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 EOS 1200D T5
Sony WX350
Nikon P600
Sony Alpha A5000
Sony Cyber-shot HX400V
Panasonic Lumix GH4
Panasonic TS5 FT5
Sony Alpha A6000
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 B&H!
Olympus SP 550 Ultra Zoom Gordon Laing, March 2007

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

Olympus SP-550UZ wide-angle geometry comparison

Olympus SP-550UZ wide-angle geometry test  

To measure and compare the Olympus SP-550UZ's geometric distortion we photographed a test chart consisting of a grid pattern, using it and a number of rival models.

Here are the results for each camera with their lenses at their widest focal length.

The images were analysed with Imatest using 5th Order line calculation and the full areas presented here at a reduced resolution.

4.7-84.2mm at 4.7mm f5.6
Distortion: 3.33% barrel

 
The image above was taken with the Olympus SP-550UZ zoomed-out to 4.7mm. Barrel distortion was measured at 3.33% which is roughly in the middle of the pack: it's virtually identical to the Canon G7, slightly better than the Nikon D40's kit lens, but not as good as the Panasonic FZ50.

Canon PowerShot G7
Nikon D40
Using DX 18-55mm II
Panasonic DMC-FZ50
Canon PowerShot G7 wide-angle geometry test
Nikon D40 with 18-55mm wide-angle geometry test
Panasonic DMC-FZ50 wide-angle geometry
7.4-44.4mm at 7.4mm
Distortion: 3.34% barrel
  DX 18-55mm II at 18mm f8
Distortion: 3.73% barrel
  7.4-88.8mm at 7.4mm
Distortion: 2.56% barrel





Olympus SP-550UZ telephoto geometry comparison

Olympus SP-550UZ telephoto geometry test  

To measure and compare the Olympus SP-550UZ's geometric distortion we photographed a test chart consisting of a grid pattern, using it and a number of rival models.

Here are the results for each camera with their lenses at their longest focal length.

The images were analysed with Imatest using 5th Order line calculation and the full areas presented here at a reduced resolution.

4.7-84.2mm at 84.2mm f5.6
Distortion: 1.45% pincushion
 
The image above was taken with the Olympus SP-550UZ zoomed-in to 84.2mm. Pincushion distortion was measured at 1.45% which is noticeably worse than the other cameras tested below; indeed the inward bending of straight lines is quite clear in the sample above. Again to be fair, the SP-550UZ does have a massive optical zoom range, and this is clearly one of the compromises. Luckily most subjects with very straight lines, such as buildings, are more likely to be photographed at shorter focal lengths where the distortion would be less apparent.

Canon PowerShot G7
Nikon D40
Using DX 18-55mm II
Panasonic DMC-FZ50
Canon PowerShot G7 telephoto geometry test
Nikon D40 with 18-55mm telephoto geometry test
Panasonic DMC-FZ50 telephoto geometry test
7.4-44.4mm at 44.4mm f5.6
Distortion: 0.28% pincushion
  DX 18-55mm II at 55mm f8
Distortion: 0.21% barrel
  7.4-88.8mm at 88.8mm
Distortion: 0.34% barrel

Olympus SP-550UZ 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