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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 30 Mar 2009 (Monday) 20:08
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Image Quality Question Using L Series

 
Photoman65
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Mar 30, 2009 20:08 |  #1

Has anyone experienced a horizontal solid white line in the upper top of their images after shooting with these lenses? This line does not appear within the image(s) 100% and I'm not sure if this white line is caused by these lenses are just the image sensor is going bad. Any suggestions?;)


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100mm-400mm f/4.5-5.6 IS


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Perry ­ Ge
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Mar 30, 2009 20:11 |  #2

Post a pic. Could be that your shutter about to die. Could be a bum CF card. Could be fluorescent lighting, could be many things, but it doesn't sound like a lens issue.


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Mar 30, 2009 20:11 |  #3

I've never had this problem but I was wondering if the problem recurrs while using a different memory card?

No? Then its a bad card.

Yes? Then I would start by cleaning my sensor.


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Bendel
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Mar 30, 2009 20:16 |  #4

I can't think of any part of the lens that would create a horizontal line across an image, especially when all of the internals of the lens are round.


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Mar 30, 2009 20:17 |  #5

Sorry, no photoman - I only have the 70-200 of your choices and all is well with it.

I'm with Perry's suggestion that it may be shutter related. I tend not to think it would be a card related issue, my feeling that cards either work for the most part or not at all, with the periodic image that may "disappear" due to a bad sector or such; no proof of the latter..... just anecdotal info.

Photoman65 wrote in post #7632675 (external link)
Has anyone experienced a horizontal solid white line in the upper top of their images after shooting with these lenses? This line does not appear within the image(s) 100% and I'm not sure if this white line is caused by these lenses are just the image sensor is going bad. Any suggestions?;)

85mm f/1.2II
70mm-200mm f/2.8 IS
100mm-400mm f/4.5-5.6 IS


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Park ­ Street
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Mar 30, 2009 20:20 |  #6

I had a similar problem with a 1DS MarkIII and it was the shutter. Send it in to Canon.


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Photoman65
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Mar 31, 2009 15:52 |  #7

Ouch! Park Street,

If the shutter is going bad, then how much is repair cost to fix this issue. Also, I have less than 45k actuation on my 1Ds MKII, so isn't this consider extremely low compared to 200k actuation life cycle?


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René ­ Damkot
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Mar 31, 2009 18:05 |  #8

Again: Post an image if you want anything but guesses...


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Image Quality Question Using L Series
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