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Possible issue with my Canon EF 24-70 F2.8 lens at wide (24mm)

Started Nov 30, 2013 | Discussions
Bas Emmen
Bas Emmen Forum Member • Posts: 99
Possible issue with my Canon EF 24-70 F2.8 lens at wide (24mm)

I suspect there is a problem with my Canon EF 24-70mm F2.8 type 1 (2006)

I noticed that the edge, especially left side is blurry at < 35mm

I made some shots at 24mm with different apertures.

Can someone help me reviewing these shots? Is this typical?

Setup:

  • Canon 7D on a tripod 
  • 24mm F2.8 to F8 in 5 steps
  • AV setting, autofocus

Screenshots from Apple Aperture with focus points and exif data:

24mm F2.8

24mm F3.2

24mm F3.5

24mm F4

24mm F5

24mm F8

 Bas Emmen's gear list:Bas Emmen's gear list
Canon EOS 6D Canon EF 24-70mm F2.8L II USM Canon EF 50mm F1.8 STM Apple iPhone 7 Plus
Canon EF 24-70mm f/2.8L USM
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mikero
mikero Veteran Member • Posts: 3,054
Re: Possible issue with my Canon EF 24-70 F2.8 lens at wide (24mm)

I've never tried the 24-70 F2.8 I but I do have the Mk II version.  This looks way out on the corners, and seeing this was taken with a 7D, there is something very wrong I think.

Mike

 mikero's gear list:mikero's gear list
Olympus E-M1 II OM-1 Olympus Zuiko Digital 2.0x Teleconverter EC-20 Olympus Zuiko Digital 1.4x Teleconverter EC-14 Olympus M.Zuiko Digital ED 60mm F2.8 Macro +10 more
hotdog321
hotdog321 Forum Pro • Posts: 21,141
Re: Possible issue with my Canon EF 24-70 F2.8 lens at wide (24mm)

Yeah, I'd have to agree with the previous poster. I've got the version II, but no way is this right. Usually I've banged up a lens to get these soft edges. I'd send it in for repair.

I assume you do not have a filter on this lens, right? A filter, especially a poor quality filter, can really muck up an image when shooting wide open.

 hotdog321's gear list:hotdog321's gear list
Canon EOS 5D Mark IV Canon EF 100mm f/2.8 Macro USM Canon EF 70-200mm F2.8L IS II USM Canon EF 24-70mm F2.8L II USM Canon EF 16-35mm F4L IS USM +3 more
Bas Emmen
OP Bas Emmen Forum Member • Posts: 99
Re: Possible issue with my Canon EF 24-70 F2.8 lens at wide (24mm)
1

The lens has been repaired by a servicecenter!

It's sooo much better now.

 Bas Emmen's gear list:Bas Emmen's gear list
Canon EOS 6D Canon EF 24-70mm F2.8L II USM Canon EF 50mm F1.8 STM Apple iPhone 7 Plus
bronxbombers4 Veteran Member • Posts: 3,387
i think so

It looks like something is horribly wrong. I know the original wasn't the best at the edges and maybe you are shooting a bit close in but I mean it doesn't look like you are shooting THAT close in and it's only APS-C not FF! So my guess is yeah something is horribly wrong with it.

Bas Emmen
OP Bas Emmen Forum Member • Posts: 99
Re: Possible issue with my Canon EF 24-70 F2.8 lens at wide (24mm)

Here is screenshot of the almost worst possible setting (25mm  - F2.8)

Here you see it's so much better now!

25mm - F2.8

 Bas Emmen's gear list:Bas Emmen's gear list
Canon EOS 6D Canon EF 24-70mm F2.8L II USM Canon EF 50mm F1.8 STM Apple iPhone 7 Plus
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