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Thread started 07 Nov 2006 (Tuesday) 15:36
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Distortion on 17-40

 
surfologist
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Nov 07, 2006 15:36 |  #1

Can someone tell me if the distortion is the same on the Canon 17-40 as it is on the Canon 17-85?
Silly question, i know, but i was just curious.

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h0rde
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Nov 07, 2006 17:47 |  #2

If you mean barrel/pincushion distortion, I believe that varies from lens to lens.


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Billginthekeys
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Nov 07, 2006 18:26 |  #3

varies from lens to lens, even with the same focal legths. im fairly certain though that the 17-85 will have MORE distortion though.


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tsaraleksi
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Nov 07, 2006 22:08 |  #4

On a crop? I don't notice much distortion, if any. I mean, there's a litte near the edges at 17mm. But nothing appalling.


--Alex Editorial Portfolio (external link)
|| Elan 7ne+BG ||5D mk. II ||1D mk. II N || EF 17-40 F4L ||EF 24-70 F2.8L||EF 35 1.4L || EF 85 1.2L ||EF 70-200 2.8L|| EF 300 4L IS[on loan]| |Speedlite 580EX || Nikon Coolscan IV ED||

  
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Choderboy
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Nov 07, 2006 22:43 as a reply to  @ tsaraleksi's post |  #5

Generally it's not too bad.
I think I found the "bad spot" with this shot:
This is at 17mm. The building in front of the tower has some distortion , but the tower itself!


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Rumjungle
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Nov 07, 2006 23:37 |  #6

Less distortion on the 17-40:
17-85 (external link) vs. 17-40 (external link)


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tsaraleksi
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Nov 08, 2006 00:06 |  #7

Oh, I forgot- there is a bit of corner distortion at 17mm.


--Alex Editorial Portfolio (external link)
|| Elan 7ne+BG ||5D mk. II ||1D mk. II N || EF 17-40 F4L ||EF 24-70 F2.8L||EF 35 1.4L || EF 85 1.2L ||EF 70-200 2.8L|| EF 300 4L IS[on loan]| |Speedlite 580EX || Nikon Coolscan IV ED||

  
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surfologist
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Nov 08, 2006 10:56 |  #8

Rumjungle wrote in post #2232834 (external link)
Less distortion on the 17-40:
17-85 (external link) vs. 17-40 (external link)

That site shows the 17-40 to have less distortion on the wide end.... And the average sharpness is not too bad as compared to stopping down...

Thanks for that site rumjungle, now i definately will probably make the switch.


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Rumjungle
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Nov 08, 2006 12:07 |  #9

You're welcome. Bear in mind that it's only one source of tests, but I still find it to be a useful site.


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surfologist
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Nov 08, 2006 13:14 |  #10

Rumjungle wrote in post #2234901 (external link)
You're welcome. Bear in mind that it's only one source of tests, but I still find it to be a useful site.

I have seen that site before, but lost it... I think it is one of the best... the reviews and information i have read benefited me


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Distortion on 17-40
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