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 ELPH 340 IXUS 265
Canon G7X
Nikon 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
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!
Nikkor AF-S DX 18-200mm f/3.5-5.6 G ED VR II Gordon Laing, June 2010

Results : Sharpness 18mm / Sharpness 55mm / Sharpness 85mm / Sharpness 135mm / Sharpness 200mm / Geometry / Vignetting


Nikkor DX 18-200mm VR II Geometric distortion

To measure the Nikkor DX 18-200mm VR II's geometric distortion, we photographed a chart consisting of a grid pattern with the lens set to its shortest and longest focal lengths at an aperture of f8. The images were shot in RAW mode to avoid any in-camera corrections, then analysed with Imatest using 5th Order line calculation, and the full areas presented here at a reduced resolution. Smaller percentages are better. Results for other general-purpose lenses are shown at the bottom of this page.



Nikkor DX 18-200mm VR II distortion zoomed-out
 
Nikkor DX 18-200mm VR II distortion zoomed-in
DX 18-200mm VR II at 18mm f8
Distortion: 5.14% barrel
DX 18-200mm VR II at 200mm f8
Distortion: 1.24% pincushion


With the Nikkor DX 18-200mm VR II zoomed-out, barrel distortion was measured at 5.32%. This is roughly similar to the distortion measured on the DX 18-70mm, DX 18-105mm VR, DX 18-135mm and DX 18-200mm VR when all were zoomed-out, although the DX 18-55mm VR kit lens manages to get away with better figures. So far so similar, but remember the DX 16-85mm VR is zooming wider than the others mentioned here, which often results in greater geometric distortion – it’s good to see it’s no worse than most of the other Nikkor DX general-purpose lenses then.

When zoomed-into 85mm, the DX 16-85mm VR exhibited pincushion distortion at 0.907%. While you can visibly see the lines in the graph bend inwards in the image above, it’s actually to a lesser degree than many of the other lenses shown here including the DX 18-105mm VR, DX 18-135mm and DX 18-200mm VR, although the latter comes closer. Once again the DX 18-55mm VR kit lens performs best in the group in this test with just 0.17% pincushion distortion when zoomed-in, although to be fair it does also have the shortest optical range. The earlier DX 18-70mm also performs quite well in terms of low distortion with a figure of 0.59% when zoomed-in, although again it has a lower range than most of the others.

So if you were to switch to the DX 16-85mm VR from the DX 18-55mm VR kit lens or the DX 18-70mm, you may notice greater geometric distortion, especially when zoomed-in, but if you’re coming from the DX 18-105mm VR or DX 18-135mm you’ll enjoy a small benefit at longer focal lengths. The most impressive lens in terms of low distortion here is the DX 18-55mm VR kit lens, although again it has the smallest optical range.

Now let's see how the lenses compare in terms of light fall-off in the corners in our Nikkor DX 18-200mm VR II vignetting results.

Nikkor DX 18-200mm VR II Geometric distortion compared to other lenses (smaller percentages are better)

Nikkor DX 18-55mm VR f/3.5-5.6 distortion wide / tele
 
Nikkor DX 18-105mm VR f/3.5-5.6 distortion wide / tele
 
 
 
DX 18-55mm VR at 18mm f8
Distortion: 3.43% barrel
 
DX 18-55mm VR at 55mm f8
Distortion: 0.17% pincushion
 
DX 18-105mm VR at 18mm f8
Distortion: 5.49% barrel
 
DX 18-105mm VR at 105mm f8
Distortion: 1.65% pincushion


Nikkor DX 18-135mm f/3.5-5.6 distortion wide / tele
 
Nikkor DX 16-85mm VR f/3.5-5.6 distortion wide / tele
 
 
 
DX 18-135mm at 18mm f8
Distortion: 5.48% barrel
 
DX 18-135mm at 135mm f8
Distortion: 1.78% pincushion
 
DX 16-85mm VR at 16mm f8
Distortion: 5.32% barrel
 
DX 16-85mm VR at 85mm f8
Distortion: 0.907% pincushion


Results : Sharpness 18mm / Sharpness 55mm / Sharpness 85mm / Sharpness 135mm / Sharpness 200mm / 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