Support Cameralabs by shopping at my partner stores or buying me a coffee!
Buy me a coffee!

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

Lumix G80 / G85
Olympus OMD EM1 II
Sony RX10 Mark III
Sony RX100 Mark V
Nikon COOLPIX B700
Sony A6500
Lumix FZ2000 / FZ2500
Nikon COOLPIX B500
Lumix LX10 / LX15
Fujifilm XT2
Nikon D3400
Canon EOS 5D Mark IV
Ricoh GR II
Canon G7X Mark II
Canon SX720 HS
Canon EOS 80D
Olympus TG Tracker
Nikon D500 review
Canon EOS 1300D / T6
Lumix GX80 / GX85
Fujifilm X-Pro2
Fujifilm X70
Lumix TZ80 ZS60
Sony A6300
Canon PowerShot G5X
Lumix TZ100 ZS100
Sony A7s Mark II
Sony RX10 II
Lumix FZ330 / FZ300
Sony RX100 IV
Canon G9X
Fujifilm XT10
Nikon COOLPIX L840
Canon SX530 HS
Olympus OMD EM10 II
Canon SX410 IS
Panasonic Lumix GX8
Olympus TOUGH TG860
Sony A7r Mark II
Canon PowerShot D30
Olympus TOUGH TG4
Canon PowerShot G3X
Canon EOS 5Ds
Nikon COOLPIX S9900
Sony HX90V
Canon EOS T6s 760D
Panasonic Lumix G7
Panasonic Lumix SZ8
Canon EOS M3
Olympus EPL7
Samsung NX3000
Panasonic Lumix GM5
Nikon D5500
Panasonic Lumix GF7
Olympus OMD EM5 II
Nikon COOLPIX S9700
Canon SX710 HS
Panasonic TZ70 / ZS50
Sony Alpha A7 Mark II
Canon EOS 7D Mark II
Fujifilm X100T
Nikon COOLPIX S3600
Sony Alpha A5100
Sigma DP1 Quattro
Sony Cyber-shot W830
Nikon COOLPIX L830
Nikon D750
Canon SX400 IS
Sony Cyber-shot H400
Panasonic Lumix LX100
Canon SX60 HS
Canon ELPH 340 IXUS 265
Canon G7X
Nikon COOLPIX P530
Canon SX520 HS
Canon G1 X Mark II
Panasonic Lumix FZ1000
Panasonic TZ60 / ZS40
Sony RX100 III review
Sony A3000 review
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
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

Sony Alpha DSLR-A100 review with DT 18-70mm f3.5~5.6 Gordon Laing, July 2006

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

Support this site by shopping via these links


Sony Alpha DSLR-A100 corner sharpness comparison using DT 18-70mm f3.5~5.6

  To measure and compare the Sony DSLR-A100's corner sharpness we photographed the Enhanced Digital Camera Resolution Chart with it and a number of rival models, each using their best quality JPEG and default image tone and sharpening settings. The Konica Minolta 5D and Sony Cybershot DSC-R1 were tested using our older chart, but the results are comparable.

We used the bundled lenses at their widest and longest focal lengths and with various apertures in Aperture Priority mode. The crops are taken from the extreme lower left corner of the chart and presented here at 100%.

The results below confirm the Sony DSLR-A100's bundled DT 18-70mm lens is identical to the DT 18-70mm bundled with the Konica Minolta 5D. The charts may have changed, but the corner problems at wide angle with a fully open aperture still remain.

The wide angle results improve considerably as you move into the frame, but if you want sharp corners at the 18mm focal length, you'll need to stop the aperture down. The Canon 18-55mm bundled lens performs much better here, although the clear leader is Sony's own R1 with its built-in lens - this is even more impressive considering its maximum f2.8 aperture.

Zoom-in to the telephoto end though and the situation improves dramatically. The Sony DSLR-A100 with DT 18-70mm performs much better in the corners at 70mm, exhibiting only slight softness with the aperture wide open. This is however par for the course against its rivals.

Note: crop details taken from the same chart which appear smaller here are due to them being captured with lower resolution cameras and / or a lens which couldn't focus as close to the chart. In each case though, the crop still represents the extreme left corner of each camera's frame.

Sony DSLR-A100
Canon EOS-350D
Konica Minolta 5D
Sony Cyber-shot DSC-R1
Sony DSLR-A100 at 18mm f3.5
Canon EOS-350D at 18mm f3.5
Konica Minolta 5D at 18mm f3.5
Sony Cyber-shot DSC-R1 at 14.3mm f2.8
18-70mm DT at 18mm f3.5
18-55mm EF-S at 18mm f3.5
18-70mm DT at 18mm f3.5
14.3-71.5mm at 14.3mm f2.8
Sony DSLR-A100 at 18mm f8
Canon EOS-350D at 18mm f8
Konica Minolta 5D at 18mm f8
Sony Cyber-shot DSC-R1 at 14.3mm f8
18-70mm DT at 18mm f8
18-55mm EF-S at 18mm f8
18-70mm DT at 18mm f8
14.3-71.5mm at 14.3mm f8
Sony DSLR-A100 at 18mm f16
Canon EOS-350D at 18mm f16
Konica Minolta 5D at 18mm f16
Sony Cyber-shot DSC-R1 at 14.3mm f16
18-70mm DT at 18mm f16
18-55mm EF-S at 18mm f16
18-70mm DT at 18mm f16
14.3-71.5mm at 14.3mm f16
Sony DSLR-A100
Canon EOS-350D
Konica Minolta 5D
Sony Cyber-shot DSC-R1
Sony DSLR-A100 at 55mm f5.6
Canon EOS-350D at 55mm f5.6
Konica Minolta 5D at 55mm f5.6
Sony Cyber-shot DSC-R1 at 71.5mm f4.8
18-70mm DT at 55mm f5.6
18-55mm EF-S at 55mm f5.6
18-70mm DT at 55mm f5.6
14.3-71.5mm at 71.5mm f4.8
Sony DSLR-A100 at 55mm f8
Canon EOS-350D at 55mm f8
Konica Minolta 5D at 55mm f8
Sony Cyber-shot DSC-R1 at 71.5mm f8
18-70mm DT at 55mm f8
18-55mm EF-S at 55mm f8
18-70mm DT at 55mm f8
14.3-71.5mm at 71.5mm f8
Sony DSLR-A100 at 55mm f16
Canon EOS-350D at 55mm f16
Konica Minolta 5D at 55mm f16
Sony Cyber-shot DSC-R1 at 71.5mm f16
18-70mm DT at 55mm f16
18-55mm EF-S at 55mm f16
18-70mm DT at 55mm f16
14.3-71.5mm at 71.5mm f16

Sony Alpha A100 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 2005-2017 Gordon Laing. May not be used without permission.

/ Best Cameras / Camera reviews / Supporting Camera Labs