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FORUMS Gear Reviews Lens Reviews 
Thread started 04 Feb 2015 (Wednesday) 11:18
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TOGGLE RATINGS BETWEEN ALL AND I Simonius (showing now: I Simonius)
Overall Rating8
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Value for Money8
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Sharpness7
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Must Have7
Suitability to Intended Use7.5
Got What I Expected8.5
Ownership Status: "previously owned"

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List all reviews of Canon EF 17-40mm f/4L USM

Canon EF 17-40mm f/4L USM, reviewed by I Simonius

 
I ­ Simonius
Weather Sealed Photographer
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6,493 posts
Gallery: 19 photos
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Likes: 41
Joined Feb 2005
Location: On a Small Blue Planet with Small Blue People With Small Blue Eyes
     
Feb 04, 2015 11:18 |  #1

for the money you cannot beat this W/a zoom for image quality, weather-sealing, lightness and responsivness

The only thing that lets it down is the edges which at the extreme corners are mush on Full frame. However the rest of the image , especially the centre is so good that you'll forgive it unless you can afford the new 16-35 f4L (which I did) so if you are ona crop camera then teh extreme edges are nota problem and theres no point spending more, the newer lens is not noticable sharper in the ctntre. In this area this lens is absolutely cracking!


"The important thing is not to stop questioning. Curiosity has its own reason for existing. - Albert Einstein" - yes, but why?
My Snaps  (external link) My Gear ---- (external link)

  
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DoughnutPhoto
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513 posts
Gallery: 1 photo
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Joined Aug 2014
Location: the Netherlands
     
Mar 15, 2015 13:39 |  #2

I've noticed that on my crop camera, the edges are far worse than on my full frame. The crop sensor has the benefit of not using the lenses extreme edges, but its pixel density is much higher and the 17-40 just can't handle it until about f/8. At least that's my experience on the 60d.


Canon 5d, 60d, 17-40mm L, 30mm Art, 50mm, 85mm

  
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I ­ Simonius
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Weather Sealed Photographer
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6,493 posts
Gallery: 19 photos
Best ofs: 2
Likes: 41
Joined Feb 2005
Location: On a Small Blue Planet with Small Blue People With Small Blue Eyes
     
Mar 15, 2015 14:37 |  #3

I was using 5Dmk2. Looked darn good to me. What I would say though is that I have had five copies of this in total over the years, the first three two had shiftend elements and were mush all down one side, third was OK til I wmnt FF then I got a better copy, which I damaged in fall and was replaced by an equally good version
Wht this shows is that (for a while at least ) quality control on this lens was all over the place.

At the end I did have avery good copy indeed, and this just goes to show what this lens is capable of when they get it right


"The important thing is not to stop questioning. Curiosity has its own reason for existing. - Albert Einstein" - yes, but why?
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Canon EF 17-40mm f/4L USM, reviewed by I Simonius
FORUMS Gear Reviews Lens Reviews 
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