strange bokeh canon 70-300 L

Started Jan 12, 2012 | Discussions thread
photoPhlow
Regular MemberPosts: 110Gear list
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Re: More Low ISO photos
In reply to HAbba, Jan 15, 2012

HAbba wrote:

Hi,

I don't think its a high-ISO issue (noise). Here are some additional photos - not processed (full and crop). Look at the back ground behind the mans head and peacock head. I feel its strange (lines) - it does not happen all the time (maybe I am being subjective and particular).

Regards

Hassan

This particular photo shows the lines all going in one direction. This cannot be a standard "outlining" bokeh issue. This same problem was posted a number of months ago, and it turned out to be the filter. Lines are being created at the same angle, regardless of feature. It is clearly an optical defect of some kind.

Can IS cause it? Perhaps, though I've never seen it. I would consider the IS defective if it is the cause.

The tests you did with/without the filter didn't show the problem in any of the shots, so you can't really determine anything by those tests. My vote is still for the filter.

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